PROCEEDINGS

OF

The Academy of Natural Sciences

OF

PHILADELPHIA

VOLUME LXXIII

1921

PHILADELPHIA: THE ACADEMY OF NATURAL SCIENCES

19Z2

The Academy of Natural Sciences of Philadelphia,

April' 24, 1922.

I hereby certify that the printed copies of the Proceedings for 1921 were mailed as follows:

Pages 1-32 September 12, 1921

33-4S September 17, 1921

49-64 October 6, 1921

65-96 October 11, 1921

97-192 October 14, 1921

193-224 December 9, 1921

225-240 December 24, 1921

241-304 January 3, 1922

305-352 January 4, 1922

353-410 January 18, 1922

417-436 January 23, 1922

437-468 April " 6, 1922

469-500 April 11, 1922

501-532 April 13, 1922

533-552 Apiil 24, 1922

WILLIAM J. FOX, Editor.

PUBLICATION COMMITTEE:

Henry Skinner, M.D., Sc.D., Witmer Stone, A.M., Sc.D.

Henry A. Pilsbry, Sc.D., William J. Fox,

Milton J. Greenman, M.D. The I'lrsifle?}!, John Cadwalader, A.M., LL.D., ex-officio.

EDITOR: William J. Fox.

CONTENTS

For Amiouncements, etc., see General Index.

PAGE

Alexander, Charles P. New or Little-known Craneflies

from the Amazonian Region 39

Braun, Annette F. Two Weeks' Collecting in Glacier Nat- ional Park 1

Fowler, Henry W. Notes on Hemibranchiate and Lopho-

branchiate Fishes 43 7

Gordon, Samuel G. Desilicated Granitic Pegmatites. ...... 1(39

The Chromite Deposits of the State Line Serpentines 449

Hebard, Morgan. South American Blattidac from the Mus- eum d'Histoire Naturelle, Paris, France 193

Penard, E. Studies on some Flagellata, 105

Pennell, Francis W. Scrophulariaceae of the West Gulf

States 459

PiLSBRY, Henry A. A Revision of W. M. Gabb's Tertiary

Mollusca of Santo Domingo 305

Wanner, H. E. Some Faunal Remains from the Trias of

York County, Pennsylvania 25

Wetmore, Alexander. A Fossil Owl from the Bridger

Eocene 455

I 1 f 3^

PROCEEDINGS

OF THE

ACADEMY OF NATURAL SCIENCES

OF

PHILADELPHIA.

1921

TWO WEEKS COLLECTING IN GLACIER NATIONAL PARK.

BY ANNETTE F. BRAUN.

During the summer of 1920, the writer had a brief, but very- successful collecting trip in Glacier National Park, Montana, which disclosed an unexpectedly rich insect fauna. A total of fourteen days, in whole or part, was spent in collecting between July 14 and July 29, inclusive.

Glacier National Park lies in northwestern Montana, including within its boundaries a mass of mountain peaks, the highest of which rises to an elevation of 10,438 feet. It is traversed in a northwest- southeastwardly direction by the Continental Divide. On the west side, the waters flow into the Pacific through the Columbia River; on the east side, in the south, to the Missouri River, in the north beyond the Hudson Bay Divide, to Hudson Bay. Adjoining the park on the east lie the foothills and plains; at the lower altitudes on this side of the park, about 5000 feet, there is a blending of foot- hills and mountain vegetation which may in part account for the richness and diversity of the fauna in the dry mountain meadows at this altitude. It was on the east side of the park that most of my collecting was done.

Although my attention was directed principally toward securing as adequate a representation of Microlepidoptera as possible within the limited time spent in the park, specimens in other groups of

(1)

t

2 PROCEEDINGS OF THE ACADEMY OF [Part I

Lepidoptera were collected when the opportunity offered. The number of such species perhaps totals in the neighborhood of one hundred. In addition a few general observations on the abundance and distribution of other orders of insects in the various ecological regions and at different altitudes were made and will be referred to below.

The region is forested except at the higher altitudes and on wind- swept mountain sides, with a rather dense growth of coniferous trees. Some of the steeper rocky slopes are comparatively treeless, with a scanty herbaceous vegetation of many species, with scattered spruce and pine. In addition to these, there are two other types of comparatively treeless areas, which furnished the best collecting grounds, both as to species and numbers of individuals. One of these is the open dry rocky meadow, which supports a great variety of herbaceous plants and which yielded the greatest number of Microlepidoptera. The other is a moister meadow, with taller, more luxuriant vegetation.

The coniferous forest proved to be the poorest collecting ground in the park. This was especially true where the predominant under- growth was the Indian basket grass; here practically nothing was secured. Where the undergrowth was of a more varied character, particularly near the margins of streams, a greater number of spe- cies was found. The Geometridae led in numbers here.

The rather open steep rocky slopes and cliff's, of which the sides of Goat Mountain above St. Mary Lake are an example, yielded some species which were not found elsewhere. Collecting here was only successful early in the morning, at sunrise just as the sun strikes the rocks, or in the late afternoon.

The moister meadow referred to above may be found in forest openings, on the moister mountain slopes, or in the more sheltered valleys, such as the valley of Canyon Creek or the upper part of Swiftcurrent Valley. The most conspicuous herbaceous plants of these meadows in July are the cow parsnip, Heracleum lanatum, and the false forget-me-not, Lappula florihunda. Shrubs abound and a dense growth of alders occurs where the water supply is plentiful enough. Such localities proved to be prolific collecting grounds. In the Microlepidoptera the most abundant and characteristic spe- cies here was Choreutis occidentella Dyar. Simaethis fahriciana var. alpinella Busck, several species of Incurvariidae flying in sunshine, and Pterophoridae were usually present in considerable numbers. Butterflies in limited numbers were seen also. Toward the end of

1921] NATURAL SCIENCES OF PHILADELPHIA. .J

July, Gnophaela latipennis var. vermiculata became very plentiful, flying by dozens in the air above the alders. The numerous shrubs, most of which were in bloom at the time of my stay, attracted many Coleoptera, chiefly Longicorns, Clerids and Mordellids; Hy- menoptera, of which the parasitic forms were especially noticeable, and many Diptera, of which by far the greatest number were Syr- phidae. The Coleoptera were most plentiful during the first four or five days of my stay, and dwindled in numbers very markedly toward the end of July. These meadows lie at altitudes of 4500 feet to 5500 feet.

The dry meadow occupies drier, rocky and more exposed situa- tions usually at altitudes around 5000 feet; good examples of such meadows where extensive collections were made are found at Glacier Park Station, the lower end of Two Medicine Lake, the north end of McDermott Lake, and on the gentle slopes near the mouth of Canyon Creek. These meadows are veritable flower gardens, ex- hibiting an unsurpassed richness of flora. At the end of July, the blooming period was about over at Glacier Park Station, and the meadow was becoming dry and brown, with a corresponding dwind- ling in species of Lepidoptera. These meadows are by far the richest of any of the localities where collections were made in point of species and numbers of individuals. Microlepidoptera were most active early in the morning, while the dew was still on the leaves, and in the evening at dusk. In most instances specimens taken in the evening were of different species from those flying in the morn- ing. Coleophora, Elachistidae, some Incurvariidae, many species of Gelechiidae were the most characteristic groups present among the Tineina; Tortricids were represented by a great number of species, many very numerous in individuals, notably Cnephasia argentana Clerck w^hich flew in swarms; Pyralids, among which perhaps the most common was Pyla sp., and many Crambids were present. Butterflies flew plentifully dm*ing the middle of the day; these were fairly numerous at all places dmdng my stay in the park, but became especially abundant during the last five or six days of July; swarms of them congregated on every moist stream bank and on the trails. The flowering shrubs, scattered through the meadows and fringing the forests, attracted as in the moist meadows, many Coleoptera, Hymenoptera and Diptera.

The subalpine meadows occurred at the higher altitudes, 6000 feet or over, depending upon slope exposure, topographic conditions and persistence of snow. These meadows produced a disappoint-

4 PROCEEDINGS OF THE ACADEMY OF [Part I

ingly small number of species. The Gelechiid, Gnorimoschema och- reostrigeUa, was the only really common micro; some species of Tortricids were found, and Crambids were fairly numerous. Butter- flies were not uncommon; and representatives of several genera of day-flying Noctuids were captured on flowers. The most striking feature of the insect fauna at the higher altitudes at this time was the presence of great numbers of Syrphus flies, representing many species. Bumble-bees were common in the meadows here, with a mimicking Syrphus fly.

The microlepidopterous fauna of the region shows a mingling of elements derived from several physiographic areas; as might be expected from its situation at the eastern edge of the Rocky ^foun- tains, with the plains to the east, and its connection with the Pacific Coast and Sierra Nevada through the Columbia River Basin. Its position in the Northern Rocky Mountain Region relates its flora and fauna to that of the north and makes possible connections with more easterly forms. Thus we have species here hitherto reported from Texas, New Mexico and Arizona, from the more southern Rocky Mountains, from the Sierra Nevada of CaUfornia. from Oregon, and species whose range includes the whole northern United States and Canada. The Lepidoptera of the Kootenai District of British Columbia (Dyar, 1904) is on the other hand, most nearly related to that of the Sierra Nevada. This region, although not far from Glacier National Park, lies entirely on the Pacific side of thg Continental Divide in the Columbia River drainage basin.

All of the localities mentioned in the following pages may be found on the U. S. Geological Survey topographic map of Glacier National Park. The altitudes of the chief points at which collec- tions were made are as follows :

Glacier Park Station, 4796 feet.

Two Medicine Lake, 5175 feet.

St. .Mary, 4472 feet.

Going-to-the-Sun Chalets, on St. Mary Lake, about 4600 feet.

McDermott Lake, 4860 feet.

Swiftcurrent Pass, 7176 feet.

Granite Park, 6500 feet.

In this paper only those species belonging to the families formerly grouped together as Tineina are included. The Tortricid families of which many species were collected are omitted here. In addition to the species of Tineina recorded in this paper as occurring in Glacier National Park, many others, chiefly Gelechiidae and Cole-

1921] NATURAL SCIENCES OF PHILADELPHIA. 5

ophor\dae, some of them belonging to genera not reported from this country, were collected. Strangely, no member of the family Tineidae, which is usually well represented in collections from west- ern localities, was secured.

The types and paratypes of the new species are all for the present in the writer's collection.

COSMOPTERYGIDAE.

Cyphophora tricristatella Chambers.

Occurring most commonly in dry meadows at the lower altitudes in the region (about 5000 feet); one specimen at Granite Park, July 26 (6400 feet).

Psacaphora deceptella n. sp.

Palpi dark brown outwardly, with a silvery metallic luster in- wardly; antennae dark brown, apical four or five segments black preceded l^y six or seven white segments. Head and thorax leaden metallic, with a purplish iridescence, base of wing silvery metallic with blue and purple iridescence, followed by a large dark brown patch on costa extending a little below fold. Ground color of remainder of wing golden orange. The dark brown patch is edged outwardly and beneath by bluish silvery metallic scales, which extend outward beneath the fold to a large patch, of dark brown raised scales. A similar large patch of raised scales at tornus, pre- ceded by a streak of metallic scales which forms its inner border and then extends obliquely upward over the end of the cell to the costal cilia ; on the end of the cell these metaUic scales form a slightly convex patch. First discal spot round, silvery, edged with black. A white costal spot at three-fourths. Extreme margin of the wing around apex and cilia dark brown, with a faint purple luster; a row of iridescent metallic scales around apex at base of cilia from the white costal spot to the tornus. Hind wings dark brown. Legs dark brown, tips of segments whitish. Abdomen dark brown above and below. Expanse, 10 mm.

Type id"), Glacier Park Station, July 29.

Close to terminella Westwood; at first glance mistakable for it. The chief points of difference are the different coloration of the antennae, the orange apex of the wings, and the details of the silvery markings.

Psacaphora sexstrigella n. sp.

Palpi silvery white, the second segment densely dusted with black in transverse rows, third segment with a few blackish specks. Face yellowish, shading to dull leaden metallic on the crown. Tho- rax and fore wings dark brown, mixed with leaden metallic scales, which predominate in the basal two-thirds of the wing. Basal

6 PROCEEDINGS OF THE ACADEMY OF [Part I

fifth of wing purplish; an orange spot at basal fifth below fold but not reaching dorsum; a large black scale tuft near middle of wing below fold; a similar tuft at tornus, bordered toward base with white scales; a little behind this, on costa, a large white spot; a series of six white streaks, three costal and three terminal,, around apex, arranged fan-like, not reaching into the ciha. Cilia brown, paler at the base. Hind wings and cilia brownish gray. Legs black, with tips of segments and a bar across the hind tibiae white. Ab- domen dark brown, tip orange. Expanse, 9 mm.

Type ( 9 ), McDermott Lake.

The larva mines leaves of fireweed, Chamaenerion angustifolium, making a linear mine which enlarges into a pale greenish blotch. The imago emerged August 14.

Mompha unifasciella Chambers.

The galls common throughout the park on stems of fireweed. Imagoes emerged from August 12 to 22.

GELECHIIDAE.

In addition to the species which are referred to or described be- low, a limited number each of other species were collected.

Aristotelia rubidella Clemens.

Common in the dry mountain meadows at about 5000 feet.

Telphusa praefixa n. sp.

Labial palpi dark fuscous, paler inwardly; a very narrow whitish annulus is faintly indicated at the basal third of the second segment, a broad white annulus at apical third; base, an annulus before the tip and extreme tip of third segment white. Antennae fuscous, annulate with pale gray above, most distinctly toward the apex. Head pale gray, scales tipped with white. Thorax and fore wings dark fuscous, sprinkled with black scales in the middle and apical part of the wing; scales of the thorax and wing near the base min- utely tipped with whitish. From basal fourth of costa an out- wardly oblique pale fascia (scales pale gray, white-tipped, con- colorous with the head), narrowing toward dorsum, reaches a little beyond the fold; it is bordered inwardly by a heavy line of black scales, which ends in a small patch of raised black and whitish scales just below the fold. A small patch of raised black and white scales on the fold beyond the fascia. An indistinct pale spot in the middle of costa; an irregular transverse pale fascia at three-fourths con- colorous with the oblique fascia, scarcely reaches the dorsum, and sends a short broad inward projection basalwards in the middle of the wing. At the inner edge of this projection is a small patch of raised black scales. Cilia gray, speckled with white-tipped black scales. Hind wings and cilia fuscous. Legs fuscous, barred with white, tarsi white-tipped. Expanse, 13.5-14 mm.

1921] NATURAL SCIENCES OF PHILADELPHIA. 7

Glacier Park Station, July 29, in a pine and aspen thicket. Type and two paratypes in the writer's collection.

Gnorimoschema ochreostrigella Chambers.

This species is very common in the open meadows at the higher altitudes. Many specimens collected at Granite Park and Swift- current Pass, 6400 to 7100 feet; July 25-26.

Some specimens show distinctly the ocheroua^ streaking on the fore wings; in others there is scarcely a vestige of the ochreous tint, and the wing is of a dull drab color, dusted with fuscous. The expanse of wings varies in these specimens from 12 to 17 mm.

Gnorimoschema triocellella Chambers.

Glacier Park Station, Julj^ 14. In some specimens the apical portion of the wing except on the extreme margins is densely dusted with nearly black scales.

Gnorimoschema erigeronella n. sp.

Palpi white inwardly, densely dusted with black beneath and outwardly ; base and a more or less distinct band near apex of second segment whitish; base and extreme tip of third segment whitish. Antennae whitish ochreous, banded wMth fuscous. Head and thorax white, specked with black, with some ochreous on the crown, and on the patagia and median line of thorax. Fore wings ochreous, marked with lines of white black-barred scales, which follow the veins and the margins of the wing, leaving the fold ochreous. The lower margin of the cell is broadly thus clothed, and the dorsal part of the wing below the fold has only a short longitudinal streak of ochreous which is sometimes entirely w^anting. Around the apex the scales on the interspaces are more broadly barred with black than those along. the veins. An elongate black spot or dash at the middle of the cell just below and in contact with the line of scales along the upper margin; a similar spot at the end of the cell. These are the two most distinct spots, but there is usually an aggregation of blackish scales on the fold just below the first discal spot; a similar spot on the ochreous ground color just within the costal margin near base. Hind wings silvery gray in the female, darker in the male; cilia gray with ochreous bases. Legs white, densely dusted with fuscous, hind tibiae faintly barred with white; tarsal segments tipped with white. Expanse, 11.5-14 mm.

Glacier Park Station, July 28; a specimen reared emerged Aug- ust 13.

Type ( cf' ) and two paratypes ( 9 ) ; one of the females reared from an irregular mine on Erigeron speciosus DC, collected July 14, when most of the mines were untenanted.

8 PROCEEDINGS OF THE ACADEMY OF [Part I

This species is very close to artemisiella Kearf . ; the two are ahnost identically marked, but erigeronella is a narrow, more slender-winged species and is considerably larger.

Gnorimoschema contxaria n. sp.

Labial palpi blackish, minutely peppered with white; second seg- ment whitish inwardly, third with a white spot within near base. Antennae dark brown with narrow paler rings. Head and thorax dark fuscous, patagia and tip of thorax reddish brown. Costal two-thirds of the fore wing reddish brown, with the costa and veins marked with lines of white broadly black-barred scales, the lines sometimes confluent in the apical half of the wing; the dorsal third of the wing from the base to the apex is clothed with white scales barred before their tips with black of varying width. The dorsal margin is distinctly lighter than the remainder of the wing. The paler dorsal portion is irregular indented with blunt tooth-lik3 projections of the brown ground color; these teeth are partially filled up and edged with blackish scales, heightening the contrast*., between the two areas. Three of these patches of black scales stand out prominently; an elongate one near base, one in each of the two succeeding teeth and extending up onto the cell. Cilia fuscous, specked Avith whitish black-barred scales. Hind wings and cilia gray, with a faint reddish tinge. Legs densely dusted with fuscous. Expanse, 15-16 mm.

Type (cf ), McDermott Lake, July 22; three paratypes (cf and 9 ), Glacier Park Station, July 14; in dry meadows.

Although allied to the other longitudinally streaked species, the paler dorsal margin gives it a very different aspect; the pattern of the dorsal half of the wing is that of serratipalpella Chambers. In the female, the brown ground color is less obscured by the dusted lines than in the males.

Anacampsis niveopulvella Chambers.

Common at Glacier Park Station, where the larvae feed on willow and aspen. Both this and the following species are referable to Compsolechin Meyrick, if this genus is maintained distinct from

A7iacaittpsis.

Anacampsis paltodohella Busck.

(Jne specimen of this beautiful species taken on the car window, exact locality not known, presumably western Montana.

The type locality is New Mexico.

Gelechia lugubrella Fab.

McDermott Lake, July 22; Glacier Park Station, July 29; in dry meadows. Previously reported in this country from Maine.

1921] NATURAL SCIENCES OF PHILADELPHIA. 9

Gelechia unifasciella Busck.

Two Medicine Lake, July 15-16; in dry mountain meadows. These specimens answer minutely the description of this species, the types of which came from Williams, Arizona, but the expanse is somewhat less (14-15 mm.).

Gelechia metallica n. sp.

Palpi bronzy brown, brush on second segment blackish. An- tennae dark brown. Head, thorax and fore wings lustrous dark bronzy brown, the wings entirely immaculate; on underside of the fore wings of the male a patch of yellowish oval slightly convex scales covers the disc. Hind wings shining pale fuscous, with slightly yellowish elongate scales on the disc. Abdomen purplish black above, underside of abdomen and legs shining dark bronzy brown. Expanse, 9.5-11.5 mm.

Glacier Park Station, July 14 and 29, Going-to-the-Sun, July 20- 21; McDermott Lake, July 24; in dry mountain meadows, flying in the early morning.

Type (cf) and thirty paratypes, all males.

Very unlike any other described American species. In the hind wing, veins 3 and 4 are stalked, veins 6 and 7 closely approximated.

Gelechia abradescens n. sp.

Palpi, antennae and head dark brown; outer side of second seg- ment of palpi witii a few scattered whitish scales. Thorax and fore wings shining dark brown, under a lens slightly irrorated; some- times a few scattered whitish scales along the veins; an indistinct elongate blackish spot at about the middle of the fold, and obliquely above and beyond it in the cell a small blackish spot; a similar but larger spot at the end of the cell; at apical third a whitish spot on the costa, usually confined to the extreme costa, occasionally, especially in the female, extending about one-quarter across the wing. Cilia brownish gray, with a faint line of brown scales through the middle. Hind wings brownish gray, cilia brown at their bases. Underside of body and legs uniformly dark brown without paler markings. Expanse, 17-20 mm.

Glacier Park Station, July 14, in dry meadows.

Type (cf) and eleven paratypes (d^ and 9).

This species seems to be allied to pravinominella, ornatifimhriella and amorphaeeUa.

The wings are very easily abraded, having then more of a dusted appearance, due to exposure of the paler bases of the scales. In such specimens the black spots are more conspicuous.

Gelechia conspersa n. sp.

Palpi pale grayish brown, mixed with whitish, third segment with a minute black spot at the base outwardly. Antennae brown,

10 PROCEEDINGS OF THE ACADEMY OF [Part I

banded with whitish. Head and thorax pale grayish brown. Fore wings pale grayish brown, bases of scales whitish, dusted with scat- tered whitish scales, which occur singly except in the apical third of the wing, where they form ill-defined spots. A row of these extends around the apex from the apical third of costa to the tornus. The costal margin is slightly darkened before the first of these spots. A faint darker small spot on disc and a larger one at end of cell. Cilia whitish at their bases, brown at the tips with an indistinct brownish line through the middle. Hind wings pale brownish gray, cilia whitish at the base. Upper side of abdomen gray, tuft whitish. Underside of body and legs, except the hind tibiae and tarsi, dark brown, sparsely dusted with white. Hind tibiae and tarsi whitish inwardly, dusted with brown outwardly except at tips of segments. Expanse, 18-19 mm.

Type (cf), McDermott Lake, July 24; one paratype, St. Mary,

July 18.

Gelechia altematella Kearfott.

Two Medicine Lake, July 16, in dry meadows.

Gelechia versutella Zeller.

Very common on trunks of aspens, on the leaves of which the larva feeds. Glacier Park Station, July 29. The moths are prac- tically invisible except when moving, so closely do they resemble the darker patches of bark.

OECOPHORIDAE. Agonopteryx rosaciliella Busck.

Reared from larvae sewing together leaves of sweet cicely, Os-

morhiza sp., near Going-to-the-Sun Chalets. Larvae collected

July 21; imago, August 7.

Agonopteryx nivalis n. sp.

Palpi creamy white, slightly shaded with brownish; antennae brownish, darker toward the tips. Head, thorax and fore wings creamy white; fore wings with a faint rusty tinge beneath fold near base of dorsum and along apical third of costa. Minute brownish and blackish spots along costa, three or four larger and more diffuse on apical third; last row of scales along termen between veins, brown; a few scattered brown scales, chiefly along the veins; a very small black spot within the costa near base; a small black spot on middle of cell and obliquely above and before it, a second similar spot; a larger transverse spot at end of cell. Hind wings creamy white. Legs white, dusted with fuscous, the fore pair most densely. Expanse, 23 mm.

Type (cf ), Two Medicine Lake, July 16.

Perhaps most like pallidella Busck, but without demarcation be- tween basal area and remainder of wing.

1921] NATURAL SCIENCES OF PHILADELPHIA. 11

Enicostoma quinquecristata n. sp.

Labial palpi with the anterior edge of second segment pale reddish ochreons, a black spot near base and above middle; remaining scales of brush gray with white tips; third segment j^ellowish, with an annulus near base and the tip black. Antennae gray. Scales of head and thorax gray, with white tips. Fore wings ashen brown, more or less thickly bestrewn with dark gray, minutely white-tipped scales, Avith a tendency to longitudinal streaking in the apical third of the wing; groups of brown white-tipped scales form a series of indistinct marginal spots around the apex. Five scale tufts formed of white-tipped black scales; at one-third, a very large tuft on fold and a smaller one above in the cell; a large tuft at the lower angle of the cell and a smaller one above it; between these two pairs, on the middle of the cell, a fifth large tuft. Cilia grayish brown, with scales white-tipped. Hind wings pale gray, cilia fulvous at the base. Legs densely dusted with gray, hairs on upper side of hind tibiae pale brownish, spreading scales on underside gray with white tips. Expanse, 17-19 mm.

Type (cf ), Two Medicine Lake.

The type and twelve paratypes ( cf and 9 ) reared from larvae webbing leaves of Penstemon confertus Dougl., a common small- flowered pale yellow species, collected on the trail to Dawson Pass, Two Medicine Lake, altitude about 5500 feet. The larva lives under a web in a folded leaf, eating out patches of the leaf. The web is usually on the upper side, sometimes on the lower side of the lea,f near the base. Surface of pupa clothed with fine erect hairs. Imagoes, August 6-17.

Although the food plant was common everywhere throughout the region in the dry meadow at the lower altitudes, the larva of this species was not observed elsewhere.

The generic position of the species was determined by Dr. Ed- ward Meyrick, who states that it agrees with the type of the genus in all essential particulars, except in the palpi. In E. quinquecristata, the second segment of the palpi is more thickened with scales, and these are more expanded toward apex than in the type.

The genus Enicostoma is given in Dyar's "List" as a synonym of Semioscopis.

For convenience of reference, a detailed statement of the generic characters as shown by E. quinquecristata follows :

Head with loosely appressed scales, side tufts projecting in front; tongue developed, densely scaled except towards tip. Antennae two-thirds, with slightly spreading whorls of scales at apices of segments, alike in both sexes, basal segment without pecten. Labial palpi very long, recurved; second segment clothed with a dense

12 PROCEEDINGS OF THE ACADEMY OF [Part I

triangular brush of scales beneath and above, laterally' compressed, sharp-edged in front, brush horizontally truncate at apex; third segment slender, acute, seeming to arise from center of the brush of second, visible portion about one-third the length of the second. Maxillary palpi short, appressed to tongue, third segment equaling in length the two preceding segments. Posterior tibiae clothed with long hairs above, and rough spreading long scales beneath. Fore wings with large tufts of raised scales; lb furcate at base, 2, 3 and 4 about equidistant, 2 from near end of cell; 2 and 3 arising perpendicular to lower margin of cell, curving outward and running straight to termen; 5 nearer 4, 7 and 8 stalked, 7 to costa almost at apex, 11 from before middle. Hind wings 1, elongate-ovate, cilia 1; 3 and 4 connate, 5-7 parallel, 5 nearer 6.

Epicalliina quadrimaculella Chambers.

Amongst rocks, near Going-to-the-Sun, on St. Mary Lake, July 20- 21. All of the specimens were taken flying in the sunshine at sun- rise, and none were seen later than 7.30 A. M.

Epicallima dimidiella Walsingham.

Two Medicine Lake, July 15; Going-to-the-Sun, July 18 and 21. Flying actively only in early morning; several taken flying in com- pany with E. quadrimaculella.

Borkhausenia haydenella Chambers.

Two males and one female of this species were collected, one male at Two Medicine Lake, July 15, the other two specimens on the cliffs on Goat Mountain above Going-to-the-Sun Chalets, July 18. The female has the wing more densely dusted with white than the male, and the transverse spot at the basal third large and more clearly defined.

ETHMIIDAE. Ethmia albistrigella Walsingham.

Two Medicine Lake, July 16; Granite Park, 6500 feet, July 25. Collected near plants of false forget-me-not, Lappula floribimda, which may possible be the food plant.

GLYPHIPTERYGIDAE. Simaethis fabriciana var. alpinella Busck.

St. Mary, July 18; Canyon Creek, 5500 feet, July 23, in openings in the forest.

Choreutis per nivalis n. sp.

Head and palpi whitish, scales of tuft fuscous towards tips. Basal half of fore wing light brown, with a broad straight pure white

1921] NATURAL SCIENCES OF PHILADELPHIA. 13

fascia across the middle of the brown; fascia margined outwardly along the middle of its length with silvery scales; a basal streak of silvery scales just within the costal margin. Outer half of wing white, except a narrow band around apex and along termen, which is ochreous, dusted with white and fuscous. White patch with two longitudinal black and one or two fuscous lines of scales; the two black lines ending at the outer border of the white patch in con- fluent black spots, nearly overlaid with silvery scales; a wedge- shaped black spot beneath these, silvery margined, and a large quadrate black patch just above fold, with two transverse hries of silvery scales and a few silvery scales at its upper outer ajigle. Cilia white with a pale fuscous line through the middle. White marks more or less distinctly repeated on the underside. Hind wings more pointed than usual, brownish fuscous, underside with a whitish irregular submarginal patch; ground color shading darkest next to this patch. Underside of thorax white, abdomen fuscous. Legs whitish, tibiae and tarsi brownish. Expanse, 11.5-12 mm.

Type (cf ), and one paratype ( 9 ), Glacier Park Station, July 14.

Very close to extrincicella Dyar, from which it differs by the pure white of the fore wings, the whitish irregular patch on the under- side of the hind wings, and the narrower wings, particularly the narrower more pointed hind wings.

Choreutis caliginosa n. sp.

Palpi fuscous and white intermixed; antennae dark brown, with white annulations. Head and thorax dark broAvnish gray, a few scales at the posterior margin of the head and a very narrow line along the inner edge of the patagia whitish. Fore wings dark brown ; a curved whitish fascia at basal fourth, palest and broadest on the dorsum and not reaching the costa; a basal streak of iridescent scales just within the costa; outer half of the wing, except the apical part, occupied by a paler patch of whitish-tipped brown scales, marked at the inner and outer edge on the costa by a white spot, below which are a few iridescent scales; before the pale patch on the dark brown ground color in the middle of the wing is a black spot, nearly overlaid with iridescent scales. On the pale patch, above the middle, a small black spot with iridescent scales, three or four longi- tudinal black lines running out into the ground color in the apex; below, a large quadrate patch, sometimes divided transversely, containing two transverse patches of iridescent scales. A few iri- descent scales along termen below apex. Hind wings dark brown, on underside an irregular paler submarginal band. Expanse, 10.5- 11 mm.

Type (cf), paratype (9), Two Medicine Lake, July 16; in dry meadows.

Close to occidentella Dyar, but smaller and darker, and with the oblique iridescent streak beyond the basal fascia in that species replaced by a black spot overlaid with iridescent scales.

14 PROCEEDINGS OF THE ACADEMY OF [Part I

Choreutis occidentella Dyar.

This is one of the commonest micros in the region at altitudes from 4500 to 5500 feet in moist meadows or forest openings. Speci- mens taken at Glacier Park Station, July 14; Two Medicine Lake, July 15-16; St. Mary, July 18; Canyon Creek, July 23. In some of these specimens the small black spot with iridescent scales above the large quadrate spot is absent; the ground color varies from an ochreous brown to dark grayish brown.

Choreutis balsamorrhizella Busck.

Near Going-to-the-Sun Chalets, St. Mary Lake, July 20; flying around the food plant.

PLUTELLIDAE. Plutella vanella Walsingham.

Glacier Park Station, July 29. Plutella maculipennis Ciut.

This species was observed to be abundant in the park.

YPONOMEUTIDAE. Argyresthia oreasella Clemens.

One specimen taken at Glacier Park Station, July 29, cannot be differentiated from eastern specimens. Oak cannot be the food plant here, at least, as there are no oaks here.

COLEOPHORIDAE.

Judging from the number collected during the short stay in the park, the region is unusually rich in species of Coleophora. Twelve species were collected of which ten seem to be undescribed. Of these, but two are here described, the others are either represented by too short series, or are not sufficiently striking in the absence of a knowledge of the life history, to be described except in monographic work.

Coleophora tenuis Walsingham.

One specimen. Two Medicine Lake, July 16, taken in dry meadows, answers well the description of this species, but is slightly smaller (15 mm. expanse).

Coleophora albacostella Chambers.

Very common, Glacier Park Station, July 14 and July 28, flying amongst patches of Polygonum erectum, upon which it probably feeds. Chambers' type came from Texas, which is included in the

1921] NATURAL SCIENCES OF PHILADELPHIA. 15

range of this plant. There is one other specimen in my collection from Tolland, Colorado.

Coleophora brunneipenms n. sp.

Palpi brownish ochreous, shaded with fuscous beneath and on the outer side, second segment rather long, slightly tufted, third seg- ment a little over one-half the second. Antennae brown, banded with whitish, basal segment thickened with scales. Head, thorax and fore wings of a uniform light brown or brownish ochreous color, rarely duller with a grayish suffusion, but always entirely without markings or dusting. Cilia concolorous, toward tornus brownish fuscous. Hind wings and ciha fuscous. Legs brown. Expanse, 12-17 mm.

Type (cf), Glacier Park Station, July 14, eighteen paratypes (cf and 9 ), Glacier Park Station, July 14 and 28.

This species was much commoner on July 14 than at the later date, when only four specimens were secured. A number of the specimens were taken on flowers of Erigeron speciosus; some speci- mens were taken at the same time and place as the preceding species, amongst Polygonum. It is possible that one of these plants is the food plant of the larva.

Coleophora crinita n. sp.

Second segment of labial palpi very long, porrected, clothed with long scales, roughened above, with a long projecting truncate tuft l^eneath at apex, exceeding the short third segment and sometimes concealing it, whitish, fuscous beneath and on outer side. Head and basal segment of antennae whitish ochreous, the latter slightly thickened with scales, antennal stalk white, banded above with dark brown. Fore wings pale ochreous or brownish ochreous, with the costa from base to apex white, the dorsal margin more narrowly white from base to apex of wing, a rather broad white streak from base above and parallel to the fold, a narrow parallel streak close to it just below the fold, four oblique white streaks running out into the costal cilia along the veins, two less distinct streaks running into the ciha below apex. Hind wings and cilia grayish ochreous. Legs whitish, with a fuscous line along the outer side. Expanse, 12-18 mm.

Type (c?"), July 22, McDermott Lake, eighteen paratypes (d^ and 9), Going-to-the-Sun, July 20-21, McDermott Lake, July 22 and 24, Glacier Park Station, July 29, all in dry meadows.

The long palpi, with the unusually long projecting tuft of the second segment, are the chief characters for recognition of this species. The markings of the fore wing are exactly those of C. acutipennella Wlsni.; in fact, the figure and description of the wing of that species would serve equally well for the present species.

16 PROCEEDINGS OF THE ACADEMY OF [Part I

Walsingham, however, mentions no unusual features of the palpi in his species.

ELACHISTIDAE. Elachista stramineola n. sp.

Palpi whitish inwardly and above ; second segment black outwardly except at extreme tip; third segment blackish outwardly except at base and extreme tip. Antennae blackish, faintly marked with narrow paler annulations. Head yellowish gray. Thorax gray, patagia whitish, sparsely speckled with fuscous. Fore wings fus- cous, a little dusted with yellowish white, especially in the basal third. At base of dorsum a yellowish white patch, not extending onto the costal half of base, is specked Avith a few fuscous scales; a white slightly irregular fascia at one-third nearest base on costa; a triangular costal spot at two-thirds reaching halfwaj^ across the wing, and a little nearer base on dorsum a short broad whitish spot. Scales along termen yellowish toward their bases; last row of scales along termen with a whitish bar immediately preceding the black tip. CiHa gray. Hind wings and cilia pale fuscous. Legs fuscous, tips of segments and a bar across basal third of hind tibiae yellowish white. Abdomen grayish above, yellowish white beneath. Ex- panse, 11.5 mm.

Type ( 9 ), Glacier Park Station, July 29, in dry meadows. This species may be distinguished from all other species with white at the base of the wing by the dull yellowish white of the markings and the position of the basal pale patch, which is confined to the dorsal half of the wing. Venation as figured in Meyrick's "Handbook."

Elachista agilis n. sp.

Palpi dark brown, antennae dark brown. Head and thorax dark leaden meta,llic. Fore wings dark brown, somewhat shining, with metallic silvery or golden markings: at basal fourth on dorsum, an obUque spot reaching the fold, at middle of costa a nearly per- pendicular transverse spot nearly reaching the fold, in a line with this spot a small roundish spot below the fold, a spot at tornus and farther out, a curved costal streak, sometimes nearly enclosing the apex. Hind wings and cilia brownish gray. Underside of body silvery. Legs dark brown, femora, apex and spurs of tibiae, and tips of tarsi of the hind legs silvery. Expanse, 7 mm.

Type (cf) and one paratype. Goat Mountain, above Going-to- the-Sun Chalets, about 5000 feet, July 18.

An easily recognized species, quite different from any of our described species. Venation as figured in Meyrick's "Handbook."

Elachista aurocristata n. sp.

Palpi white, antennae white, shading outwardly to fuscous in the male. Head, thorax and fore wings white, with a scarcely percep-

1921] NATURAL SCIENCES OF PHILADELPHIA. 17

tible yellowish tinge in the female. Fore wings usually entirely immaculate, sometimes with a few scattered brownish ochreous scales; one or two such scales near end of fold, at end of cell and in the apex and along termen. A faint narrow blackish line some- times present in the cilia at apex and along termen. Hind wings white or pale gray. Legs white, shaded with fuscous. Abdomen white, in the male shaded with golden yellow beneath, and wdth a golden yellow anal tuft. Expanse, 12 mm.

Glacier Park Station, July 14 and 29; in dry meadows.

Type (cf ) and three paratypes (one cf and two 9 's).

Only in one of the males are the scattered ochreous scales present on the fore wdngs; the wings in the other three specimens are entirely immaculate.

Allied to E. orestella Busck, with which it agrees in venation; but easily distinguished by the golden anal tuft of the male.

Tinagma gigantea n. sp.

Labial palpi yellowish white above, scales of tuft grayish. An- tennae grayish, tinged wdth ochreous beneath. Head and thorax dusted about equally wdth whitish and pale gray. Scales of the ground color of the fore wings are pale gray at their bases, shading into white of varying width, followed by a black tip. A broad blackish transverse fascia just before middle of wing, ill-defined on its inner edge, narrowly margined with white on its outer edge, and outwardly obtusely angulated on the cell; a similar dark shade, its margins not defined, crosses at two-thirds, fading out into the general ground color toward apex. ^Marginal row of scales nearly black, cilia dark gray. Hind wings dark gray. Legs blackish, slightl}^ dusted with gray; tips of tarsi pale gray. Expanse. 14-15 mm.

McDermott Lake, July 22-24; Going-to-the-Sun ,July 20; Glacier Park Station, July 28-29; in dry meadows.

Type (d^), Julj^ 24; twenty-one paratypes.

This species flies at dusk. The moth has the peculiar habit of slowly raising and lowering the wing.

The markings are similar to those of T. ohscurofasciella Chambers, but T. gigantea is much larger and lacks the brownish tint of that species.

Tinagma pulverilinea n. sp.

Labial palpi white, with black specks outwardly. Antennae pale gray. Head and thorax white,