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Tare ee a er 2 Ai Hy mt 1 = i sahale | i : seh) i ta sett Metz Sih He , i salt Mi y BY ee SUL a i UREN Hs 3 i uit 4 nt earl yd hitter ists i ni Mee Aten Rt 3 hs aoa ie a : eer a ed a ae eee Ste ae ae “ Pe} ar Pian yi Wie edit nai ry ih EME tes a ey sie y FT iy HAD 4 a pana fetta . “ ey Ri AD he Mt Sapte uit ' EPO E RHI: sete if i i {3 Mis eg eye ae ; U if na tafesahy 4) sake nay i a ba atysiantictie if i Ne Pe ii : Hy a Wiig ; i ta f foe 4 i ila yale Rane aera Pana ia ey 4 454 aay nan Wea th ok TT ys Aa pe ' i: hy a5 i Ria te banat pa a te nas I ee aie ee eas Sue 7 \ 8) ae MN ~~ ‘ at ~ ~ a ww ~ i , a“ a Ao DQ Sage Mie aetl ald — — tf - — \ ty e / o CIV = ne Y a a 40 is we re = qe) pat oo pong ate PHILADELPHIA \ VOLUME LXXIII PHILADELPHIA Tue AcapemMy or NaTuRAL ScreNCES OF PHILADELPHIA, Apri 24, 1922. I hereby certify that the printed copies of the PRocEEpDINGs for 1921 were mailed as follows: CU Pade” $568. oe a eee ngs ae ost bee September 12, 1921: se <9 entra Ss eto ane eh head aA eS re ek September 17, 1921. UEP hee ig Par a EN ee eg Se ESS October 6, 1921. 9 O, BBG ae ee eS 1S A ee October 11, 1921. YS GIS eras ee a ee a adie Lae ce Gs October 14, 1921. $+ OGY BAA bce Be cont ee Be sic ee ee cn iy ee December 9, 1921. 0 OR MAN | iat inat Pgs ee a AR ass ae kee Sh December 24, 1921. CO ERO cb a a oe Saeed a January 3, 1922. Se i pans te ie ene ea Eee anes ek di diate Ok poten January 4, 1922. 1 OS SOS IG A ea ts a, See er eae January 18, 1922. AIT SSSD Sas ue Se LR ae eee Po ee ee January 23, 1922. oy AS (AGS ooo S Bisiccisshe, te dele Relate: ae April 6, 1922. ©) MO-BOD so PS eee sle Pe gees St emcee April 11, 1922. os ORDO. 5 a ews Sg a eee b See April 13, 1922. ©. BRRBOD. Ns Sak hoe Se geo, ke ae eee April 24, 1922. WILLIAM J. FOX, Editor. PUBLICATION COMMITTEE: Henry SKINNER, M.D., Sce.D., WITMER Stone, A.M., Se.D. Henry A. Pitssry, Se.D., WiuiaM J. Fox, Mitton J. GREENMAN, M.D. The Fresident, JouN CADWALADER, A.M., LL.D.., ex-officio. EDITOR: WituraM J. Fox. CONTENTS For Announcements, etc., see General Index. PAGE ALEXANDER, CHARLES P. New or Little-known Craneflies from the Amazonian Region........................ 39 Brawn, ANNETTE F. Two Weeks’ Collecting in Glacier Nat- SI oe oo Pa ect Oe oe ea he dy BOb sss 1 - Fowier, Henry W. Notes on Hemibranchiate and Lopho- branchiate Fishes.............. Si; Oe tet er erage: - 437 GORDON, SAMUEL G. Desilicated Granitic Pegmatites....... 169 The Chromite Deposits of the State Line Serpentines..... 449 Heparp, Morcan. South American Blattidae from the Mus- eum d’Histoire Naturelle, Paris, France.............. 193 PrenaArRD, E. Studies on some Flagellata,................ +-«- 105 PENNELL, Francis W. Scrophulariaceae of the West Gulf ECR Giese > Jae a0 nae ere Ae a 459 Pitspry, 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 Ore Commer, F enneyiVania... =... 2.65. ec 25 WETMORE, ALEXANDER. A Fossil Owl from the Bridger SDR ONES Baer Shag ch Vereen te Bae oo a 455 “/ PROCEEDINGS OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA. 4 192] 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) 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 cliffs, of which the sides of Goat Mountain above St. Mary Lake are an example, yielded some species which were not found elsewhere. Colleeting 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 floribunda. 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 fabriciana 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 need ol 1921] NATURAL SCIENCES OF PHILADELPHIA. 3 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 which flew in swarms; Pyralids, among which perhaps the most common was Pyla sp., and many Crambids were present. - Butterflies flew plentifully during the middle of the day; these were fairly numerous at all places during 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- reostrigella, 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 Moun- 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 California, 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 the Continental Divide in the Columbia River drainage basin. All of the localities mentioned in the following pages may be found on the U. 8. 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- Eo 1921] NATURAL SCIENCES OF PHILADELPHIA. 5 ophoridae, 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. ot Palpi dark brown outwardly, with a silvery metallic luster in- wardly; antennae dark brown, apical four or five segments black preceded by 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 metallic 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 (co), 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 cilia. 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 ocherous 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, July 14. In some specimens the apical portion of the wing except on the extreme margins is densely dusted with nearly black scales. Gnorimoschema erigeronella nu. 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 with fuscous. Head and thorax white, speeked 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 wanting. 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 (co) and two paratypes (2); 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 almost identically marked, but erigeronella is a narrow, more slender-winged species and is considerably larger. Gnorimoschema contraria 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-like 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 with whitish black-barred scales. Hind wings and cilia gray, with a faint reddish tinge. Legs densely dusted with fuscous. Expanse, 15-16 mm. Type (o*), McDermott Lake, July 22; three paratypes (’ and Q ), 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 Compsolechia Meyrick, if this genus is maintained distinct from Anacampsis. 5: Anacampsis paltodoriella Busck. One specimen of this beautiful species taken on the car window, exact locality not known, presumably western Montana. cs 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. i) 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 () 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 with 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 (<) and eleven paratypes (co and @). This species seems to be allied to pravinominella, ornatifimbriella and amorphaeella. 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 dise 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 (oc), McDermott Lake, July 24; one paratype, St. Mary, July 18. Gelechia alternatella 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 look 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 (o), Two Medicine Lake, July 16. Perhaps most like pallidella Busck, but without demarcation be- tween basal area and remainder of. wing. i ee eee 1921] NATURAL SCIENCES OF PHILADELPHIA. 11 Enicostoma quinquecristata n. sp. Labial palpi with the anterior edge of second ‘cine pale reddish ochreous, a black spot near base and above middle; remaining scales of brush gray with white tips; third segment yellowish, 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, with 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 (oo), Two Medicine Lake. The type and twelve paratypes (o and @) 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 leaf 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 EF. 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; 1b 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, 141 from before middle. Hind wings 1, elongate-ovate, cilia 1; 3 and 4 connate, 5-7 parallel, 5 nearer 6. ‘Epicallima: 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 floribunda, which may possible be the food plant. GLYPHIPTERYGIDAE. Simaethis fabriciana var. alpinella Busck. St. Mary, July 18; Canyon Creek, 5500 feet, J uly 23, in openings in the forest. Choreutis pernivalis n. sp. Head and palpi whitish, scales of tuft fuscous towards tips. Basal half of dis 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 i 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 lines of silvery scales and a few silvery scales at its upper outer angle. 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 (<), and one paratype (2), 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 brownish 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 (), 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 Crock: July 23. In some of these specimens the small bitck spot with iridescent scales above the large quadrate spot is. absent; the ground visto varies from an ochreous brown to dark grayish brown. Choreutis balsamorthizella 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 Curt. This species was observed to be sbamdanta 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 toed 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 brunneipennis 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 cilia fuscous. Legs brown. Expanse, 12-17 mm. Type (co), Glacier Park Station, July 14, eighteen paratypes (¥# 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 Hrigeron 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 beneath 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, witlt 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 cilia below apex. Hind wings and cilia grayish ochreous. _ Legs whitish, with a fuscous line along the outer side. Expanse, 12-18 mm. Type (), July 22, McDermott Lake, eighteen paratypes (o and 2), 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 Wlism.; 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 with a few fuscous scales; a white slightly irregular fascia at one-third nearest base on costa; a triangular costal spot at two-thirds reaching halfway 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. Cilia 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 (2), 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 metallic. Fore wings dark brown, somewhat shining, with metallic silvery or golden markings: at basal fourth on dorsum, an oblique 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 (co) 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 with a golden yellow anal tuft. Expanse, 12 mm. Glacier Park Station, July 14 and 29; in dry meadows. Type (<”) and three paratypes (one o and two Q’s). Only in one of the males are the scattered ochreous scales present on the fore wings; the wings in the other three specimens are entirely immaculate. Allied to EH. 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 with ochreous beneath. Head and thorax dusted about equally with 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, slightly 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 (co), July 24; twenty-one paratypes. This species flies ‘i dusk. The moth has the peculiar habit of ‘slowly raising and lowering the wing. The markings are similar to those of 7’. obscurofasciella Chambers, but 7’. 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, dusted with black. Scales of the general ground color of the fore wing with base gray, followed by a usually broad white bar, black-tipped. A broad dark transverse fascia just before middle of wing, convex outwardly and bordered outwardly by a row of scales which are almost entirely white. A 18 PROCEEDINGS OF THE ACADEMY OF [Part I similar dark fascia at two-thirds, convex inwardly and bordered inwardly by a broken line of white scales. In some specimens, the effect of these two white margins with the whitish dusted scales between them is that of a bi-concave dusted white-margined fascia. The second dark fascia sometimes passes imperceptibly into the white dusted apex, sometimes is more or less limited outwardly by an incomplete line of white scales. Marginal line of scales fuscous, cilia gray. Hind wings gray. Legs white, dusted with black, hind pair most densely. Thorax beneath nearly pure white, abdomen dusted with black. Expanse, 9-11 mm. On cliffs on the side of Goat Mountain, above Going-to-the-Sun Chalets, July 18, flying in the sun. Type (oc) and four paratypes (@ and 9). In general appearance quite different from the other two Amer- ican species of the genus, but with the same type of markings. GRACILARIIDAE. Lithocolletis oregonsis Walsingham. Mines collected near Baring Creek, July 20, on Symphoricarpos sp. The mine is a small tent mine on the underside of the leaf, with epidermis much wrinkled and a patch of leaf tissue in the middle of the mine not consumed. Imago, July 28. The species was described from Oregon. Acrocercops astericola F. and B. McDermott Lake, July 24. I also have specimens of this species from southern Oregon. . Gracilaria acerifoliella Chambers. I refer with little doubt to this species, specimens reared on a bush maple (Acer sp.), near Going-to-the-Sun Chalets. In these specimens, there is none of the brown dusting described by Chambers for this species, but the wings are pale brownish or reddish ochreous, with purple reflections and a pale costal triangle produced along the costa. Inasmuch as similar undusted forms occur in other species (for example, G. ostryaeella Chambers), the identification is probably correct. The larval habits agree closely with those described for G. acerfoliella; a large leaf is often entirely folded up by the time the larva finishes eating. Larvae collected July 18, imagoes August 6-14. Gracilaria alnivorella Chambers. The larvae were very common at the lower altitudes on alder. ——s es 1921] NATURAL SCIENCES OF PHILADELPHIA. 19 SCYTHRIDAE. Scythris magnatella Busck. ‘ Larvae in webs on fireweed (Chamaenerion angustifolium) , imagoes August 5. _ Scythris impositella Zeller. Glacier Park Station, July 29. Mines, presumably of this spe- cies, were observed on Aster and on Arnica sp. Scythris eboracensis Zeller. Two Medicine Lake, July 16; Going-to-the-Sun, July 20-21. Some of these specimens are unusually pale and grayish. LYONETIIDAE. With the exception of Tischeria heliopsisella Chambers, which was a common miner on sunflower near Baring Creek, only one other member of this family was observed, a Bucculatrix feeding on Arnica sp. INCURVARIIDAE. Lampronia quieta n. sp. Palpi brownish yellow, outer side of labial palpi dark brown; antennae dark brown; face and head brownish yellow. Thorax brown, patagia and a small spot on the middle of the base of the fore wing buff. Fore wing brown, scarcely shining, marked with pale buff spots; a large oblique quadrate spot at basal fourth on dorsum, reaching a little more than halfway across the wing; a large costal spot at two-thirds, concave on its inner side, convex on its outer side, and produced a little along the costa towards apex; a dorsal spot just before tornus, with its inner edge perpendicular to the margin, its outer edge oblique; a narrow elongate spot along termen below apex; costal cilia brown, buff-tipped towards apex, cilia buff at apex and on termen to the lower end of the buff spot, thence dark brown tothe tornus. Hind wings and cilia gray. Legs _ buff, the two anterior pair with fuscous shading. . Expanse, 18 mm. Type (92), Canyon Creek, 5500 feet, July 23; resting on a rock near the water. Nearest to taylorella Kearf., but without the purple and coppery luster of that species. Lampronia obscuromaculata n. sp. Palpi gray, second segment of labial palpi white above; antennae gray, white scaled toward base, cilia of the male 1; head with gray and whitish hairs intermixed. Fore wings shining very pale gray, with a few scattered fuscous scales, base of costa fuscous; marked 20 .° PROCEEDINGS OF THE ACADEMY OF [Part I with scarcely defined white spots and fasciae placed: as follows: a spot in the fold near base; a quadrate spot on basal third of dor- ‘sum reaching just beyond fold; just beyond middle a transverse fascia; at apical fourth of costa a spot reaching about halfway across the wing. Hind wings and cilia gray, darker than the fore wings, with purplish iridescence, thinly scaled. Legs gray. Expanse, 15 mm. Type (o), Two Medicine Lake, July 16; in dry meadows. In this specimen, veins 7 and 8 of the fore wing are coincident as in Greya, but the other characters and the general habitus of the insect are those of Lampronia. As shown by the following species, such individual variations occur. Lampronia variata n. sp. Palpi brownish gray, labial palpi with whitish scales above; an- tennae black; head brownish, some whitish hairs on the face. Tho- rax and fore wings shining bronzy brown; at basal third of dorsum a pale yellowish spot reaching the fold; just before tornus a pale yellowish spot reaching two-thirds across the wing. Tips of cilia whitish. Hind wings dark brown with a faint purple luster. Legs dark brown. Expanse, 11 mm. Type ("), Two Medicine Lake, July 16; paratypes (# and 9 ), Two Medicine Lake, July 15, in forest openings. In some of these specimens 7 and 8 of the fore wings are coin- cident. Lampronia politella Walsingham. Three males, Two Medicine Lake, July 15, Going-to-the-Sun, July 21, collected in early morning in the dry meadows. The ex- panse, 18-20 mm., is somewhat more than that given by Walsing- ham; but in other respects, these specimens agree closely with the description, showing very markedly the aeneous tinge of the fore wings. Lampronia piperella Busck. Two Medicine Lake, July 15, in dry meadows; one female speci- men which has all the veins of the fore wing present and palpal characters as in the other species of the genus, and not as described for the very similar Greya punctiferella Walsingham. CHALCEOPLA nom. nov. This generic name is proposed to replace Cyanauges Braun (Ohio Jour. Sci., XX, 24, 1919), preoccupied by Cyanauges Gorham in the Coleoptera. 1921] NATURAL SCIENCES Of PHILADELPHIA. 21 Chalceopla itoniella Busck. Two Medicine Lake, July 16; Canyon Creek, July 23; Swift- current Valley, July 27; flying in sunshine. In Chalceopla itoniella veins 7 and 8 of the fore wing are separate, as is also the case in the two following species. The genus Chal- ceopla is most easily recognized by the spreading bristles below and at apex of second segment of the labial palpi, the minute or small maxillary palpi and the two kinds of scales, the greenish or bluish broad scales and the elongate metallic scales. Chalceopla cockerelli Busck. Two Medicine Lake, July 16. Chalceopla ovata n. sp. Second segment of labial palpi white, with black bristles, terminal segment black; hairs of head whitish; antennae black. Thorax and fore wings shining bronzy brown, with pale yellowish markings; a small elongate spot in fold near base; a spot on middle of dorsum reaching fold; an oblique curved patch at three-fifths of costa is narrow on the costa, but expands into an oval in the middle of the wing. Hind wings dark brown with a purple tinge, and with dull golden metallic scales on the margin projecting into the cilia. Legs dark brown with a bronzy luster. Expanse, 7.5 mm. Type (2), July 18, on the cliffs on Goat Mountain above Going- to-the-Sun Chalets. There is no differentiation in shape between the metallic over- scales and the ordinary scales in this species in the fore wing; on the hind wing, metallic scales are only found at the extreme margin. Greya subalba n. sp. Labial palpi whitish, third segment black beneath; maxillary palpi short, folded portion reduced to a short segment, which is usually not bent over in the dead insect; antennae gray; head white. Fore wings varying in color from shining white to pale buff, with base of costa fuscous. Hind wings gray, with whitish cilia. Legs white, fuscous shading on the two anterior pair. Expanse, <, 14-16.5 mm.; 9, 11-14 mm. Type (o'), Two Medicine Lake, July 16; twenty-two paratypes (# and @), Glacier Park Station, July 14; Two Medicine Lake, July 15-16, McDermott Lake, July 23, all in dry meadows. The whitish immaculate fore wings distinguish this species from the others of the genus. The terminal segment of the maxillary palpi is only about half the length of the corresponding part in Greya solenobiella Wlsm. 22 PROCEEDINGS OF THE ACADEMY OF [Part I MICROPTERYGIDAE. ACANTHOPTEROCTETES new genus. Labial palpi very short, directed outwardly. Maxillary palpi long, filiform, folded. Tongue short. Head densely rough-haired. Antennae four-fifths, slender, filiform, smoothly scaled, basal seg- ment slightly swollen. Middle tibiae with one apical spur, posterior tibiae smooth, middle and apical spurs long. Fore wing: elongate lanceolate, fibula large, second and third anal veins separate and distinct to the margin, Cu and {st A co- alesced at base, posterior arculus distinct, Cu and-Cu; distant, base of media distinct, not forked within the cell, forming an almost straight linewith M;+., transverse vein perpendicular between Cu and M;+., and nearly meeting the very oblique transverse vein between M;+,and R,+;, which becomes obsolescent near M;+,, M; arising near the middle of the oblique transverse vein, M, from middle of stalk of R, and R;, R, and R; long stalked, R; to apex, R. +; coincident, from near end of cell, R, from before middle, with an accessory vein, Sc not forked, humeral vein present. Hind wing: elongate lanceolate, ——— a littlé narrower than the fore N wing, without frenulum, but with series of costal spines, venation —< similar to that of the fore wing, SS with the exception of the anasto- es mosis of the first and second anal veins near the base, the absence of the transverse vein between Cu, and M;+,, absence of accessory vein from R,. Genotype, Acanthopteroctetes tripunctata n. sp. The forking of the base of media nearer to the margin than in other Micropterygid genera has resulted in a nearly straight discal - vein, and a consequent configuration of the discal cell similar to that in other Lepidoptera. The presence of three separate anal veins in the fore wing is an unusual feature. The presence or ab- sence of a cross-vein between the first and second anal veins of the fore wing could not be observed without injury to the unique type. This genus belongs in the subfamily Eriocranianae, but is not closely related to any described genus. It is nearest to Eriocrania. In addition to the species described below, I have a single speci- men, in rather poor condition, of another species of this genus from the southern Sierras. 1921] NATURAL SCIENCES OF PHILADELPHIA. 23 Acanthopteroctetes tripunctata n. sp. Palpi brown with a slight golden tinge, hairs of the head reddish brown; antennae blackish brown, basal segment paler. Fore wings brown, with a faint golden and purplish luster, bases of scales a little paler: a slightly irregular yellowish spot on the disc at one- third; at three-fifths, a yellowish costal and an opposite dorsal spot nearly meeting. Scales at apex a little paler. Hind wings brown, a little darker than the fore wings. Legs dark brown. Abdomen dark brown, median line beneath paler. Expanse, 11 mm. Type (o”), Canyon Creek, 5500 feet, J uly 23; flying in sunshine in a forest opening. The general appearance of this moth suggests a Tineid rather than a Micropterygid. oh had Aas z lg kiss ‘ ee Oe a ae Se eT eae sei eee =v ON ee ee ae SS. ee eee ee _ Re Te ~~ es oe - 78”, ~~ a SOME FAUNAL REMAINS FROM THE TRIAS OF YORK COUNTY, PENNSYLVANIA. BY H. E. WANNER. Plants from the Trias of York County have been reported and described under thirty-three species, twelve of which are new.! In the same region, so productive of fossil flora, faunal. remains have been less in evidence. Only three species, all based on frag- mentary saurian remains, have been described, two by Cope and one by Sinclair.? In the hope that a contribution to the knowledge of the faunal life of this locality would be an acceptable addition to the palaeon- tology of the Newark System, this paper is presented.* I am indebted to my father for inspiration and for whatever love of the science of geology I possess. He materially assisted in the field work and in the collection of specimens. I am also under obli- gations to Dr. H. A. Pilsbry for counsel and assistance and for the extension of every courtesy in granting me access to the data in The Academy of Natural Sciences of Philadelphia; to him also belongs the credit for the description and identification of the Mollusca. Dr. John M. Clarke, of the New York State Museum, kindly gave me the benefit of his wide knowledge in the consider- ation of Spirorbis. : DESCRIPTIVE GEOLOGY. The Trias of York County rests, non-comformably, on the Lower Cambrian.‘ This is shown in the railroad cut just north of Emigs- ville. The triassic rocks, dipping N. W. at an angle of 16 degrees, rest on the Lower Cambrian shale and limestone. ‘The latter dip 1Ehrenfeld, F. A study of the igneous rocks at York Haven and Stony Brook, Pa. Univ. of Penna., 1898. Wanner, A. Triassic flora of York County, Pa. U.S. Geol. Survey, Ann. Rept., pp. 233-255, 1898-99. 2Cope, E. D. Description of vertebrata from the Triassic formations of the United States. Amer. Phil. Soc. Proc., vol. XVII, p. 232, 1878. Sinclair, W. J. A large Parasuchian from the Triassic of Pennsylvania. Amer. Jour. Sci., vol. XLV, Pp. 457-462, June, 1918. 3 Most of the field work and the collection of material were done in the sum- mer of 1920. 4 Walcott, C.D. The Cambrian rocks of Pennsylvania. U. 8. Geol. Survey, Bull. 134, 1892. (25) 26 PROCEEDINGS OF THE ACADEMY OF [Part I to the 8S. W.> The basal layer here is a limestone conglomerate. Sandstones, shale and conglomerates occur in the succeeding layers and farther north a large intrusion of diabase. This forms the elevation known as the Conewago hills. All of the rocks examined dip N. W. at an angle varying from 15 to 24 degrees. No evidences of faulting or folding were observed. _@ MANCHESTER Fig. 1.—Localities of triassic exposures mentioned herein. The localities described in this paper are about three miles north of Emigsville (fig. 1). Taking the average dip as 20 degrees and calculating from the dip and horizontal distances, the productive layers are, approximately, 6600 feet above the basal conglomerate.’ Correlation and definite location of these layers is difficult without a section across the Trias. — . Two columnar sections are given (figs. 2 and 3) showing the rela- tive positions of the productive strata. These sections are of interest because they show the rapid alternation of the sediments. The physical and lithological character of the shale varies considerably even in the same layer. In one place it may be hard and compact 5 Frazer, P. Penna. Geol. Survey, Report C 3, Sec. 2, 1876. jag I. C. The Newark System. U.S. Geol. Survey, Bull. 85, p. 34, 7 Ehrenfeld, F. A study of the igneous rocks at York Haven and Stony Brook, Pa. Univ. of Penna., 1898. -Wanner, A. Triassic flora of York County, Pa. U.S. Geol. Survey, Ann. Rept., pp. 233-255, 1898-99. 1921] NATURAL SCIENCES OF PHILADELPHIA. Cola Thit Colum ner Thi. Saran | was | Character and Section ee 4 im Character and, reg? . distribution Feet ndy distrioution Thinly vedied sandstone with lot reen sandstone sreteeee ss mica and feld- Heavily vedded Ce ed ‘spar, with micaceous red sek Tracks sandstone 2 . Red snale bs 5 Red sandstone seed es teeeee _ with conglzii- aeee ee rest eee 19 erate’ intere-. gage amet ‘ pedded a= Tooth in the LSE, conglomerate no Friable red vata | shale “ =———_ By _ Green shale “pees ee 7 Qed SsandsLo — + -—— thd ly bedded “Green shele amen nly bedde ———— friable rei (oe snale and .s3nd- 3 Black shale ie ps ie PG = * ar Stone vritn * . no cedeoceees unica and feld- ———_ spar. _ — ja +pricaceous ee oe a ——— Green shale 30+ “ith mica Heavily oedded red sandatone with inica Figs. 2 and 3.—Sections showing relative positions of fossiliferous strata. 28 PROCEEDINGS OF THE ACADEMY OF [Part I and in another friable and soft. The color may be red or green. Its content of silica, clay, feldspar and mica varies. HistoricaL GEOLOGY. In general, geologists now regard the theory of continental origin of the beds of the Newark System as definitely proven.® % 1° From the floral remains the triassic rocks of York County are placed by Fontaine in the Upper Trias and correlated with the Rhetic of Bavaria." Lull, from the faunal remains of. the Con- necticut valley, states that “the Newark System may bridge the time between the Triassic and Jurassic.’’” The presence of at least five different fresh-water mollusca in the York County Trias is indicative of fresh rather than saline- water conditions. The carbonaceous black shale containing the fish scales and fossil plants proves the presence of luxuriant vege- tation in swamps, or lakes. This conclusion is still further verified by the occurrence of thin coal lenses and numerous casts of limbs." CRUSTACEANS. The shells of two species of small crustaceans are found closely associated in the black shales. These were identified as Candona rogers (Lea) and Estheria ovata (Jones). The former are found more abundantly and often cover the surface of the matrix in densely crowded masses. Localities: Carbonaceous shale, Little Cone- wago (loc. 3); Black shale, York Haven (loc. 4). FISHES. The great variety of fish scales (Plate I, figs. 1-17) warrants their presentation. Some of the specimens are sufficiently different from known forms to indicate the presence of new species. The scales Bs § Russell, I. C. The Newark System. U.S. Geol. Survey, Bull. 85, Chapter , 1892. ® Davis, W. M. The Triassic formation of Connecticut. U.S. Geol. Survey, 18th Ann. Rept., pp. 32-34, 1898. 0 Barrell, J. Relations between climatic and terrestrial deposits. Jour. Geol., vol. XVI, pp. 182, 259, 1908. Ward, L. F. Status of the Mesozoic floras of the United States. U. S. Geol. Survey, 20th Ann. Rept., p. 255, 1898-99. % Lull, R. S. Triassic life of the Connecticut Valley. Geol. and Nat. Hist. Survey of Conn., Bull. 24, p. 20, 1915. ' * Wherry, E. Silicified wood from the Trias of Pennsylvania.. Acad. Nat. Sci. Proc., Phila., 1912. 4 Jones, T. R. A monograph of fossil Estheriae. Palaeontographical Soc., pp. 84, 124, London, 1862. ~~ er, 1921] NATURAL SCIENCES OF PHILADELPHIA. 29 occur in a matrix containing macerated and obscured remains of vegetation, an occasional fish spine, and minute fragments of bones. A striking characteristic of nearly all the scales found is their highly enamelled coating. By reason of the fragmentary nature of the material, no attempt has been made at identification. However, because of the enamelled surfaces of the scales, there is probably sufficient justification for provisionally classifying the fishes as ganoids.!® Locality: Carbonaceous shale, Little Conewago (loc. 3). REPTILIAN REMAINS. Coprolites (Plate I, figs. 18, 19) are found associated with the fish remains. ‘These are usually of an elongated, oval form, vary- ing in shape, and from 2 to 60 mm. in length. A cross section made through one of these reveals fish scales and microscopic fragments of bones. Localities: Shale, York Haven (loc. 4); Carbonaceous Shale, Little Conewago (loc. 3). A few bones and teeth have been found in the Trias of York County. Some of these have been referred to species by Cope and Sinclair. No attempt was made by either of these authorities to locate the horizon. The conglomerate layer shown in the sec- tion made along the Big Conewago creek yielded a fragment of a tooth with serrated edges. An extensive search failed to uncover additional fossil remains, but further search may be productive. Locality: Conglomerate, Big Conewago (loc. 2). TRACKS. Reptilian footprints have been reported from the Trias of York County.!7 Two new localities have produced small tracks on thinly bedded micaceous sandstone. These differ from any previously described from this region. They can be referred to three types. One consists of two parallel rows of crescent-shaped impressions with the longer diameter at right angles to the trend of the trail. Spread of track 10 mm. and average distance between successive footprints, 4 mm. (fig. 4, no. 1). 15 Newberry, J. 8. Fossil fishes and fossil plants of the Triassic rocks of New Jersey and the Connecticut Valley. U.S. Geol. Survey, Mon. XIV, 1888. 16 Cope, E. D. Description o ‘vertebrata from the Triassic formations of the United States. Amer. Phil. Soc. Proc., vol. XVII, p. 232, 1878. Sinclair, W. J. A large Parasuchian from the Triassic of Pennsylvania. Amer. Jour. Sci., vol. XLV, pp. 457-462, June, 1918. 30 PROCEEDINGS OF THE ACADEMY OF [Part I The second type consists of indistinct, circular tracks. The dis- tance between successive imprints is 15 mm. Running parallel on the same slab, 90 mm. distant, is a similar series; the two are probably associated. Their rounded outlines indicate that these trails were made under water by a creature either wading or swim- ming (fig. 4, no. 2). The third type consists of three related impressions, similarly placed. The distance between impressions is 30 mm. The lack of distinctness prevents a more detailed description. From their appearance they were evidently produced under water (fig. 4, no. 3). Locality: Sandstones, Big Conewago (loc. 1 & 2). se — (3) & pt oy Fig. 4.—Tracks. >>»??? >» MOLLUSKS. Shells and casts of different Mollusca were found. Some of them evidently represent new species. Since the literature on the Tri- assic fresh-water Mollusca is meager, it was considered desirable that these specimens should be identified and described by an — authority. In consonance with this decision, they were referred to Dr. H. A. Pilsbry, whose report follows. The Mollusca so far found belong to the fresh-water families Unionide and Mutelidez. Species of the former family have been described from the Trias of the Dockum beds of the Staked Plains 17 Wanner, A. The discovery of fossil tracks in the Trias of York County, Pa. Second Geol. Survey of Penna., Ann. Rept., pp. 31-35, 1887. 1921] NATURAL SCIENCES OF PHILADELPHIA. 31 of Texas by C. T. Simpson,” and from the Connecticut Valley by Emerson and Troxell.» All of these authors referred their species to the northern genus Unio; but Simpson subsequently” decided that at least part of the Texan species were related to South Amer- ican genera, though he did not expressly alter the generic references. A list of American Triassic species follows: Species from the Dockum beds, Staked Plains of Texas: Unio subplanatus, Unio dumblei, Unio graciliratus, Unio dockumensis, all of Simpson. Species from Trias of the Connecticut Valley: Unio emersoni Troxell, Unio wilbrahamensis Emerson. The third and fourth species, at least, might better be referred to the genus Diplodon, having radial beak sculpture. Probably the others will also prove to have similar sculpture when material sufficiently well preserved comes to hand. In three of the York species the radial] sculpture of the beaks shows relationship with South American genera, being like that of Diplodon and Hyria, and totally unlike that of Unio and allied genera of the Northern Hemisphere. These species are herein re- ferred to the genus Diplodon. In two other York species the beaks themselves are not preserved well enough to make out their sculp- ture; but as there is corrugation of the posterior slope, it is likely that the beaks are radially folded and that these also are referable to Diplodon. The genus Mycetopoda, here recognized as a Mesozoic fossil for the first time, is a South American genus belonging to the Mutelidae, a family of the southern continents. The records for Triassic Unionide are as yet few; but the wide separation of the localities, the presence of several species and their considerable diversity in shape and sculpture in each area, may permit the inference that Triassic North America possessed . a large and varied Naiad fauna of South American type, Hyriine and Mutelide. The next fauna of these mussels of which we have any definite knowledge is that of the Jurassic in Colorado and Wyo- ming. Here the South American types have entirely disappeared, and in their place: are distinctively Holarctic Unionine, in which 18 Description of four new Triassic Unios from the Staked Plains of Texas. Proc. U. 8. Nat. Mus., 1895, pp. 381-385. 19 American Journal of Science (4), vol. 38, 1914, p. 460. 20 Synopsis of the Naiades or Fresh-water | Pearly ussels, 1900. 32 PROCEEDINGS OF THE ACADEMY OF [Part I the beak sculpture when known is of the concentric type.* These were probably immigrants from Asia. Similar forms occur more abundantly in the Laramie. : Williston, from a study of the reptiles, holds that America was isolated from the Old World throughout the Permian and well into the Triassic, a broad connection being established in the Upper Trias. It appears likely that the subfamilies of Unionide were differentiated in this long interval from the Pennsylvanian to the Trias, the Unionine in Eurasia, while America had Hyriine mussels, which disappeared with the. advent of Old World forms in Upper Trias or Jurassic. The migration of Unionide would doubtless lag far behind that of reptiles after the connection was established. Diplodon pennsylvanicus n. sp. PI. II, figs. 1 (type), 2, 3; pl. III, fig. 4. The type consists of the two valves of one individual, spread open. On the same piece of hard gray shale there is another imper- fect valve of the same species. The shell is oblong, not unlike a young Unio complanatus (Sol.) in shape, being rather compressed. The beaks are at about the anterior third. The posterior ridge is rounded, a radial depression above it on the posterior slope. Sculpture of numerous folds radi- ating from the beaks and reaching to about the middle of the valve except posteriorly, where they are longer. Below the radial folds there are some low, concentric wrinkles. Length 21 mm.; alt. 10.5 mm.; diam. about 6 mm. Locality: Shale, Little Conewago Creek (loc. 5). __ The specimen selected as type is not full grown, but the valves are free from distortion, and the sculpture is finely preserved. Adult shells, such as that shown in Plate III, figure 4, reach a length of 32 mm., alt. about 18 mm., diam. about 10 mm. The radial sculpture covers a relatively smaller part of the valves, though actually about the same area as in the type. Another specimen, obliquely compressed, is shown in dorsal aspect in Plate II, fig. 2. Alt. about 20 mm. *1 In some of the Laramie and later Uniones there are oblique folds, super- ficially like those of Diplodon, as in Unio (Loxopleurus) belliplicatus Meek; but on the beaks the sculpture is concentric. Certain Uniones described by Whitfield, Bull. Amer. Mus. N. H., XTX and XXIII, from the Montana Laramie, have sculpture recalling Diplodon, but more like the Asiatic Parreysia. They form, I think, a special group, near Parreysia or a subgenus thereof, which may be called Proparreysia, the type being Unio percorrugata Whitfield. 2 This connection is usually mapped as across the North Atlantic (see Arldt, Handbuch der Palaeogeographie, I, 1919); but it may have been in the north- west. iat toes a ae a 1921] NATURAL SCIENCES OF PHILADELPHIA. 33 The interior of a left valve (Plate II, fig. 3) shows a moderately deep beak cavity. The muscle scars are indistinct, but so far as visible seem as in Unio. The pseudocardinal teeth are moderately strong, double, nearly smooth. The single blade-like lateral tooth is well developed but short, and rather widely separated from the pseudocardinals. This shell was 32 or 33 mm. long. This is the most abundant species; remains of some 14 individuals have been found. This species appears to be related to Unio Bickisnenes Simpson, from the Trias of Garza County, Texas, having similar though more extensive radial corrugation. That shell is about double the size of pennsylvanicus. Diplodon borealis n. sp. Figs. 5, a, b, c. _ Three specimens represent a species resembling D. pennsylvanicus, but plumper, smaller (if these are of full growth), with the beaks nearer the middle, at about the anterior two-fifths of the length. . s pe pes - : Fig. 5.—Dziplodon borealis n. sp. The sculpture consists of rather widely spaced radial furrows, much narrower than their intervals, which are flattened and show irregular, weakly festooned concentric wrinkles in places. At the anterior and posterior ends the radii are finer, and have the form of corru- gations. The best preserved specimen measures: Length 14.5 mm., alt. 8.5 mm., diam. 7.3 mm. (fig. 5a). Another detorted shell is 20 mm. long (fig. 5b). This is also about the length of the third specimen, in which one valve is partially imbedded in hard shale, and the other somewhat compressed towards the base (fig. 5c). Locality: Gray shale, Little Conewago Creek (loc. 5). 34 PROCEEDINGS OF THE ACADEMY OF [Part I Diplodon wanneri n. sp. Plate III, fig. 5. The shell is oblong, compressed, with small beaks, but little pro- jecting, at about the anterior fourth of the length. The dorsal outline is moderately arched; anterior end evenly rounded, posterior end somewhat oblique, rounded; basal margin straightened. The posterior ridge is prominent but rounded. Surface is smooth, ex- cept for unequal wrinkles of growth. There is a gray-white cal- careous layer about the thickness of writing paper, covering the shell like a periostracum (broken away in places). The interior is unknown. Length 37 mm.; alt. 22 mm.; diam. 11.7 mm. No traces of beak sculpture are discernible in the type specimen, which, as mentioned above, is covered with a thin layer of calcite. A much flattened specimen shows the beak sculpture (fig. 6). There are fine corrugations diverging from the posterior ridge, gradually weakening, and finally disappearing about 17 mm. from the beak. In the median part of the valve the fine corrugations radiating Fig. 6.—Beak sculpture of Diplodon wanneri, paratype. Diagrammatic. - from the beaks are gently curved towards the middle, though only a few of them meet (Hyria fashion). The branching of the corru- gations produces some faint appearance of zigzag pattern in the middle. In this region the sculpture reaches only about three or four mm. from the beaks. Total length of this shell is about 33 mm. Locality: Shale, Little Conewago Creek (loc. 5). Diplodon carolus-simpsoni n. sp. Plate II, figs. 4, 5, 6. The type is a left valve, imperfect in the anterior-basal region, with part of the right valve almost wholly imbedded in the hard, dark gray shale. The shell is oblong, plump, rather thick (1.6 mm. at about the posterior third). The beaks are full and prominent, near the an- terior end, which is rounded. Posterior end is oblique, being pro- duced at the post-basal extremity. The posterior ridge is prominent and rounded. Sculpture of rather strongly marked lines and wrinkles 1921] NATURAL SCIENCES OF PHILADELPHIA. 35 of growth, and on the posterior ridge, radiating, fine folds; dorsad of the ridge, on the posterior slope, the folds form a dorsally curved corrugation. The ligament is strong and prominent. Length 34 mm.; alt. 22 mm.; diam. 19 mm. Another specimen (Plate II, fig. 6) from the same-locality, but from a different bed, is in the conglomerate of a deep brownish drab color. As usual in this rock, the surface is not well preserved, but the outlines are perfect. The corrugation of the posterior slope, distinct in the type, is not legible. It measures: Length 45.5 mm.; alt. 25 mm.; semi-diam. 9.5 mm. In outline, this species resembles Unio graciliratus Simpson of the Dockum beds, Dickens County, Texas; but in that shell the lira- tions of the posterior slope appear to run parallel to the posterior ridge, not diverging upwards towards the ligament, as in the Penn- sylvanian species; also they continue to the posterior end, while in our species the corrugated area is much less extended. It is named in honor of Mr. Charles T. Simpson, whose work initiated the modern classification of Unionide. Locality: Shale, Little Conewago Creek (loc. 5). Diplodon yorkensis n. sp. Plate III, figs. 2, 2a. The type is a nearly perfect specimen showing nothing suggesting distortion of the original form. The shell is long, narrow and plump, the diameter and altitude about equal. The moderately full beaks are about 28 per cent. of the length from the anterior end, which is rounded. The posterior end slopes obliquely, the posterior-basal angle being produced. The posterior ridge is prominent, rounded, the basal margin straight, the middle of the valves flat. The surface shows rather strong, unequal wrinkles of growth where best preserved. On the dorsal slope there appears to be some trace of fine, curved, radial corru- gation posterior of the beaks. Length 32 mm.; alt. 11.5 mm.; diam. 11.7 mm. This species is quite distinct by its long, plump shape. Since ‘the above account was written a second specimen has been found. In this the valves are spread partly open. Each shows a depression running from the beaks obliquely downward and backward to the basal margin. There are radial riblets on the beaks, though mostly obliterated, and a fine corrugation on the dorsal slope behind the beaks, the corrugations radiating from the posterior ridge and curv- ing towards the dorsal margin, thus confirming the indistinct traces of such sculpture shown by the type specimen. This shell is larger than the type, 40 mm. long, and similar in other proportions. Locality: Shale, Little Conewago Creek (loc. 5). 36 PROCEEDINGS OF THE ACADEMY OF [Part I Mycetopoda diluculi n. sp.. Plate III, fig. 1. ) The single example is imbedded in reddish shale, showing part of one side and a section, from presumably near the anterior end, which is broken away. The shell is quite compressed, apparently rather ‘thin, of long, narrow, straight form. The surface shows distinct wrinkles of growth, which by their outlines indicate a rather strongly tapering posterior end. The length of the part preserved is 99 mm. Alt. at broken end 30 mm.; further back, where the ventral margin is visible, the alt. is about 25 mm. Diam. at broken end 9.5 mm. Mycetopoda is a recent genus of South America, with a few species as far north as Nicaragua and Guatemala. While the generic refer- ence of the fossil is not positive, the interior being unknown, its characters, so far as they are legible, agree well with Mycetopoda, and appear to indicate this genus or one closely similar. Locality: Shale, Little Conewago Creek (loc. 5). POLYCHAETA. | (i Spirorbis inexpectatus n. sp. Plate III, fig. 3. In the “‘red’”’ (deep brownish drab) shale there are small, spiral | bodies resembling the tubes of Spirorbis. They occur in groups scattered on surfaces of uncertain nature, or sometimes shells. They occur about half immersed in the matrix, or somewhat deeper. The spiral is in one plane. The largest individuals measure 2mm. About one and a half turns seem to be present, but only the last is clearly seen. This increases in width rather slowly, always in clockwise direction. The surface of the spiral shows sculpture of weak, retractively radial folds on the lateral convexity, and there are also fine striae in the same direction. The tube appears to be oval in section, its periphery rounded. From the uniform direction of coil it appears that the same side is always exposed, the under side probably being attached. Locality: Shale, Little Conewago Creek (loc. 5). Feeling some uncertainty about these fossils a specimen was submitted to Dr. John M. Clarke, who reported as follows: “T think there is little doubt that the specimen you have sent to me is Spirorbis. These tube-secreting worms show themselves to have been highly adaptable throughout Mesozoic and Paleozoic history. In the Carboniferous their tubes cover the leaves of coal plants and they are not unknown to us attached to terrestrial water- carried plants of the Devonian. “This specimen before me carries the impression of a leaf or the interior of some thin-shelled mollusk which might well have been PROC. ACAD. NAT. SCI. PHILA. 1921. PLATE 1 xX + x of x | 2 3 * 1 Xx 6 Xo (to ; 8 = 6 X_ + Oe | x1 x 12 10 "1 9 xX 8 KY x yy 13 * 16 14 % 18 19 WANNER: FAUNAL REMAINS FROM YORE COUNTY. a, PROC. ACAD. NAT. SCI. PHILA. 1921. PLATE II. WANNER: FAUNAL REMAINS FROM YORK COUNTY. PROC. ACAD. NAT. NAT. SCI. PHILA, 1921. PLATE III WANNER: FAUNAL REMAINS FROM YORK COUNTY. i oth tat a 1921]. NATURAL SCIENCES OF PHILADELPHIA. 37 washed out from the land into the brackish or salt waters and thus given the worm a chance for attachment. You will notice that with the coiled shells there are little ostracodes which are also in- dicative of brackish water conditions. It would be perfectly orderly to find this specimen in continental sediments.”’ EXPLANATION OF Puarss I-III. Puate I.—Figs. 1-17. Various forms of fish scales. Figs. 18, 19. Coprolite, exterior and section. Puate II.—Fig. 1. Diplodon pennsylvanicus n.sp. Type. Fig. 2. Diplodon pennsylvanicus. Dorsal view of an obliquely compressed specimen. Fig. 3. Diplodon pennsylvanicus. Interior of another specimen. Figs. 4, 5. Diplodon carolus-simpsoni n. sp. Type, dorsal and lateral views. ee. ‘ Bt aa carolus-simpsont. Lateral view of a larger specimen, in red s Puate III.—Fig. 1. Mycetopoda diluculi n. sp. Type, lateral view. Figs. 2, 2a. Diplodon yorkensis n. sp.. Type, dorsal and lateral views. Fig. 3. Spirorbis inexpectatus n. sp. Type and paratypes. Fig. 4. Diplodon pennsylvanicus n. sp. Fig. 5. Diplodon wanneri n. sp. Type, lateral view. % > ak ' Ma, ‘ . i vy - we NEW OR LITTLE-KNOWN CRANE-FLIES FROM THE AMAZONIAN REGION, BY CHARLES P. ALEXANDER. The crane-flies that inhabit the vast extent of the Amazonian basin are, unfortunately, still very insufficiently known. The pi- oneer collecting of Henry W. Bates has been supplemented in recent years principally by the work of Herbert 8. Parish, whose two trips, in 1912 and in 1919-1920, have given us almost our sole knowledge of this remarkable fauna. The crane-flies collected on Parish’s first trip have been recorded by the writer in other papers (1912- 1914) that are cited in the bibliography at the end of the paper. The material secured on the second and more extended excursion has been discussed in part in three short papers by the writer (1920). Most of the new species secured on this trip, especially in the terri- tory of the Upper Amazons, are reserved for consideration in the present paper. In order to complete the report, the comparatively few and scattered records of Amazonian Tipuloidea described in other papers are included herein. The types are in the collection of the writer; and paratypes of many of the species in the collection of the American Entomological Society. Mr. Parish has kindly supplied the writer with a brief account of his trip which is recorded here to give a clear idea of the itinerary of the 1919-1920 excursion: “T left New York on the 25th of May, 1919, and after a pleasant voyage of fourteen days arrived off the Brazilian coast. * * * The first place which I was to visit was the city of Pard, situated 175 miles up the Parad River, one of the tributaries of the Amazon. Para or Belem is one of the finest cities in the tropics. Its parks ~ and buildings are strictly up-to-date and it also boasts of having a completely equipped electric car-line. A branch of this line runs out to Waterworks, the first place where I collected on this trip. Here in the dense woods that surround the waterworks, and for miles around in this. district, I collected many different species of insects, including numerous crane-flies. After remaining in this — place for ten days, I travelled by railroad eastward to Igarapé- Assi and Pratd, where the collecting proved excellent, but great numbers of the insects collected were destroyed by ants and mold caused by the damp climate. From here I continued up the Ama- zon, my next stop being Santarem, about 400 miles from the coast. The forest here was scanty and the insects correspondingly scarce, (39) 40 PROCEEDINGS OF THE ACADEMY OF [Part I so I remained for only three days. The next stage of the journey was on a river steamer travelling to Obidos (Obydos, Bates). On board the steamer I was able to collect numbers of insects around the electric lights. .The thick forest around Obidos is rich in game and insects are plentiful. It is what might be called a ‘“ Natural- ist’s Paradise.’’ Here the largest of its genus, a tree-top flyer, ' Morpho hecuba, is found. To offset the pleasures of this paradise, mosquitoes are extremely bad both day and night. I left Obidos, travelling by night about 150 miles up the Trombetas River to a village called Oximinia, a small place with about 600 people, situ- ated on the edge of the forest. This place is very secluded and rarely visited by naturalists. After ten days of good collecting I returned to Obidos. From Obidos I continued my way up the Amazon to Parintins and thence to the town of Itacoatidra (Ita-. coatidra or Serpa, Bates). I remained there for three weeks and then pushed on to Mandos (Barra or Mandos, Bates), a beautiful city situated on a hill. After collecting about the outskirts of this city for a few days, I moved on to a place called Flores, about ten miles out from Mandos on the electric line. Here I was successful in making a large catch of insects, many being new to science. Teffé (Ega, Bates), about 300 miles up the Solimoes River, an- other of the main tributaries of the Amazon, was my next objective. The settlement here seemed to be almost the same as when Bates was here over sixty years ago, excepting the fine brick building erected by the Roman Catholics as a residence for their priests. The most striking thing to me was the luxuriance of the vegetation around Teffé Lake and the abundance of Micro-Lepidoptera.and Diptera. While at Teffé I managed to ward off a severe attack of malaria which was threatening me. I stayed in this vicinity for - two months and then boarded the steamer ‘Belem,’ travelling further up the Solimoes to Iquitos, in the Peruvian Department. of Loreto. This trip required ten days. While on board the steamer I was able to catch a number of inseets attracted to the electric lights at night. Landing at Iquitos, I found it to be a large, up-to- date city, not very far behind our northern cities. The forest about the place proved excellent for collecting. One day while walking in the forest, I noticed a hole in the side of a bank, apparently the entrance of some animal’s burrow. By swishing my net about the entrance, I caught four or five crane-flies and later on found the same occurrence, the crane-flies representing one or two spe- cies. At this place, crane-flies were noted in numbers swarming in the sunlight. After two weeks’ time, I caught a steam launch that plies between this place and Yurimaguas on the Huallaga River, a distance of some 550 to 600 miles. Here I lived with an Indian family who were very hospitable. Looming up in the west I could see the Andes Mountains. I procured a guide through my Indian host and took a walk into the forest. The air here seemed much fresher than that of the low-lying regions of the Amazonian Basin. I remained at Yurimaguas for about a month and then 1921] NATURAL SCIENCES OF PHILADELPHIA. 41 returned to Iquitos. Here I accepted the invitation to accompany a prospector who was going up the Napo River. We left Iquitos at about three o’clock one afternoon in a small canoe. Our party consisted of five, including the Indian paddlers. The first night, after supper, I got out my collecting apparatus, consisting of a white sheet, lamp, cyanide bottles and net, and after fixing the sheet and lighting the lamp, I was ready for the insects. They started to come in twos and threes, but in about ten minutes they came so fast that I had to call my prospector friend to my assistance. Even then they were in such numbers that we could not get them all. It took me all of the next day to pin and paper this material. Each succeeding night while on the Napo River, I was able to add numer- ous specimens to my collection. The animal life, especially the birds and fishes, was extremely abundant. I was very sorry when the time came to leave this place and return to Iquitos. From here I caught the river steamer down the Amazon and returned ° to Canada after an absence of more than a year.”’ Tue Facies oF THE AMAZONIAN TIPULID FAUNA. The known Amazonian crane-flies represent a comparatively large number of species distributed in a few relatively large genera. The tribes and subfamilies of the Tipulidae found here are the Limno- biini, Hexatomini, Eriopterini and Tipulinae. The families Tany- deridae, Ptychopteridae and Rhyphidae, and the Pediciini and Cylindrotominae of the Tipulidae, have not been discovered in Amazonian territory. The following genera are comparatively well represented in number of species: Dicranomyia, Geranomyia, Rhi- pidia, Gonomyia, Erioptera, Gnophomyia, Trentepohlia, Psaronius, Polymera, Ozodicera and Brachypremna. Other genera that are very characteristic of this general region, although more scantily represented in number of species, are as follows: Rhamphidia, Diotrepha, Ceratocheilus, Toxorhina and Lecteria. The following genera and subgenera appear to be confined to the Amazonian and Guianian sub-regions: Molophilus (Eumolophilus), Ctenolim- nophila, and Microtipula. A few genera in the Amazonian region have been taken as yet only on the Upper Amazons in Peruvian territory; these are as follows: Elephantomyia, Cryptolabis and Orimarga. Genus GERANOMYIA Haliday. 1833. Geranomyia Haliday, Ent. Mag., vol. 1, p. 154. The very large and complex genus Geranomyia finds its center of distribution in the Neotropical Region. Many species are widely distributed but others seem to be rather local in their range, this 42 PROCEEDINGS OF THE ACADEMY OF [Part I latter condition possibly being explainable in many instances by our still insufficient knowledge of tropical American Tipulidae. Geranomyia recondita sp. n. Rostrum relatively short; head yellowish gray with a narrow silvery gray line extending the length of the vertex, behind the eyes bordered with dusky black; mesonotal praescutum ochreous, heavily striped with reddish brown to plumbeous brown; scutellum pale, pleura suffused with greenish; legs uniformly brown in color; wings yellowish gray with a relatively heavy brown and gray pat- tern, this including three conspicuous costal areas, the two largest at the origin of Rs and the stigma; Sc short, extending but a short distance beyond the origin of Rs. Male.—Length (excluding rostrum) 7—7.2 mm.; wing 7-8.7 mm. rostrum about 3.3-3.4 mm. Female.—Length (excluding rostrum) 7-7.5 mm.; wing 8.2-9.3 mm.; rostrum about 3.2 mm. Rostrum relatively short, black. Antennae black. Head yellow- ish gray; a narrow median line of silvery gray extending the length of the vertex; on either side of this line, behind the eyes, a dusky black area. Mesonotal praescutum ochreous, heavily striped with darker; a narrow reddish brown median stripe that becomes obliter- ated before the suture; lateral stripes darker brown, sometimes plumbeous, behind the pseudosutural foveae broadly expanded lat- erad, behind crossing the suture onto the scutal lobes; median area of the scutum and the scutellum pale greenish white; postnotum with the median sclerite brownish plumbeous, the lateral sclerites pale. Pleura whitish, slightly pruinose, with very strong light green tints in fresh specimens. Halteres pale brown, the knobs darker. Legs with the coxae greenish testaceous; trochanters testaceous; re- mainder of the legs brown, the tarsi darker; the femora are unvari- egated with other colors; claws small, at the base of each with a comb of four or five teeth. that decrease in size toward the base. Wings with a yellowish gray tinge; cells C and Sc strongly yellow- ish; wings with a heavy brown and gray pattern, there being three conspicuous brown spots along the costal margin; one at the super- numerary crossvein in cell Sc, the second at the origin of Rs and tip of Sc, the third at the stigma; less distinct, gray, clouds and seams along the cord and outer end of cell /st M. and at the ends of veins R.+;, 1st A and 2nd A; veins dark brown, yellow in the pale costal areas. Venation: Sc relatively short, Sc, ending a short distance beyond the origin of Rs, this distance about equal to 7; Sc, at the tip of Sc:; Rs long, gently arcuated; basal deflection of R.+; shorter than the basal deflection of Cw; cell 1st M; long and narrow, longer than vein M; beyond it, about equal to vein M.+: beyond it; basal deflection of Cu; at or beyond the fork of M. Ab- domen reddish brown, the sternites more greenish. 1921] NATURAL SCIENCES OF PHILADELPHIA. 43 Habitat.—Peru. Holotype, &, Iquitos, May 6, 1920 D(H. Ss. Parish). Allotopotype, 2. Paratopotype, 2 2’s, May 6-25, 1920; paratypes, 8 « 9, Yuri- maguas, April 6-22, 1920 (H. S. Parish). Geranomyia xanthoplaca sp. n. Head dusky black; a narrow yellowish gray stripe extending from the front to the occiput; flagellar segments with long verticils; mesonotal praescutum orange-rufus, the lateral margins narrowly greenish; femora pale brown, the tips broadly pale yellow; a broad subterminal dark brown ring; wings faintly yellow; five conspicuous brown spots along the costal region, the third covering the origin of Rs and the tip of Sc, the latter short, extending but a short dis- tance beyond the origin of Rs. Male.—Length (excluding rostrum) about 4.8 mm.; wing 6 mm.; rostrum alone about 2.8 mm. _ Female.—Length (excluding rostrum) about 4.6 mm.; wing 5.5 mm.; rostrum alone about 2.7—2.8 mm. Rostrum black, comparatively short but slender. Antennae with the scapal segments black, the flagellum paler, dark brown; flagellar segments cylindrical or elongate-oval with long verticils in both sexes. Head with a conspicuous yellowish gray stripe extending from the front to the occiput, subequal in width to the space between the eyes at their narrowest point; remainder of the vertex and occi- put dusky black. Mesonotal praescutum intense orange-rufous, without apparent darker stripes, the lateral margin narrowly green- ish, the sublateral regions paler than the median stripe; remainder of the mesonotum yellowish testaceous, the posterior half of the postnotum darkened. In the female the scutal lobes are slightly darkened. Pleura yellow with greenish tints. Halteres pale, the knobs greenish brown. Legs with the coxae and trochanters green- ish testaceous; femora pale brown, paler basally, the tips broadly _ (0.65 mm.) pale yellow; a broad subterminal dark brown annulus, - this about equal in extent to the pale tip; the femora basad of this brown ring are narrowly and indistinctly yellowish; tibiae and tarsi greenish brown, the tips of the tibiae and distal tarsal segments darker; third and fourth tarsal segments with a series of fine comb- like bristles; claws with the basal shoulder indistinctly toothed. ~ Wings with a faint yellowish tinge, the costal and subcostal cells brighter yellow; five conspicuous brown spots along the costal mar- gin, arranged as follows: at arculus; at the supernumerary cross- vein in cell Sc; the third at the origin of Rs and tip of Sc.; the fourth at the stigma, large and elongate; the last mark at the tip of R.+;; large gray clouds at the ends of the anal veins; comparatively nar- . row gray seams along the cord and outer end of cell 1st M.; 3 veins yellow, brown in the infuscated areas. Venation: Sc short, Sc: 44 PROCEEDINGS OF THE ACADEMY OF [Part I extending but a short distance beyond the origin of Rs, Sc. close to the tip of Sci; Rs long, slightly angulated at origin; r more than its own length from the tip of R,; cell 1st M. long and narrow, longer than any of the veins issuing from it; basal deflection of Cu, before to immediately beyond the fork of M. Abdominal tergites light brown, the sternites a little paler. Habitat.—Peru. Holotype, o, Iquitos, May 6, 1920 (H. 8. Parish). Allotype, 2, Yurimaguas, April 22, 1920 (H. 8S. Parish). Geranomyia bicincta sp. n. Head dusky black; a narrow silvery gray stripe extending from the front to the occiput; flagellar segments with very long verticils; mesonotal praescutum. orange, the lateral margins broadly pale brown, margined internally by a delicate gray line; femora obscure yellow, brightened at the end of the segment, the tip and a narrow | subterminal ring dark brown; penultimate tarsal segment with a comb of about eight spines on the distal half; wings faintly yellow- ish with four small brown spots along the costa, the one at the origin of Rs separated from the one at the tip of Sc, the latter vein long, extending to beyond midlength of Rs. Male.—Length (excluding rostrum) about 4.5 mm.; wing 5.8 mm., rostrum alone about 2.8 mm. Female.—Length (excluding rostrum) about 6.8 mm.; wing 6.7 mm.; rostrum alone about 3.8 mm. Boston moderately long and slender, brownish black. porns nae black, the distal flagellar segments a little paler; flagellar seg- ments with unusually long verticils. Head with the vertex between the eyes narrow, silvery gray, this color continued caudad to the occiput; remainder of the vertex dusky black. Mesonotal prae- scutum orange, the lateral margins broadly .pale brown; viewed from above these lateral margins appear much darker brown and there is a narrow silvery gray line between them and the orange disk; remainder of the mesonotum obscure yellowish. Pleura yel- lowish testaceous, the dorsal sclerites diffusely plumbeous. Halteres pale, the knobs brown. Legs with the coxae and trochanters testa- ceous; femora obscure yellow, the end of the segment brighter than the base, the extreme apex narrowly dark brown; a short distance from the tip is a narrow dark brown ring, this about equal in extent to the yellow subterminal ring; tibiae and tarsi brown; the pen- ultimate and antepenultimate tarsal segments each bear a comb of spines on the inner face but that on the penultimate segment is here confined to the distal half of the segment and is composed of only about eight spines; terminal tarsal segment comparatively short and without a distinct comb; claws slender, the outermost of the teeth at the base of the claws produced into a long, hairlike point. Wings with a faint yellowish tinge, brighter in the costal and sub- 1921] NATURAL SCIENCES OF PHILADELPHIA. 45 costal cells; four small brown spots along the costa, the first at the supernumerary crossvein in cell Sc; the second at the origin of Rs; the third at the tip of Sc; the last at the stigma; narrow and indis- tinct seams along the cord and outer end of cell /st M2; veins yellow, darker in the infuscated areas. Venation: Sc long, Sc, extending to about opposite two-thirds the length of the long Rs, Sc. at the tip of Sc; Rs long, slightly angulated at origin; cell 7st M. moder- ately long, about equal to vein M,+, beyond it; basal deflection of Cu, at the fork of M, subequal to Cu:. Abdomen light brown; the sternites paler, brownish yellow. Habitat.—Peru. Holotype, o&, Iquitos, May 10, 1920 (H. S. Parish). Paratopotype, o’. Geranomyia bicincta angusticincta subsp. n. Male.—Length (excluding rostrum) about 5 mm.; wing 6.4 mm.; rostrum alone 3.5 mm. Female.—Length (excluding rostrum) about 6.4 mm.; wing 6.1- 6.3 mm. | In general resembling typical bicincta. Size slightly larger. Mesonotal praescutum, viewed from above, with indications of a pale brown median stripe. . Femora without the darkened apices; terminal three segments of tarsi with a comb of spinous bristles, those on the penultimate segment including the entire length with the exception of a narrow space at base; ultimate segment with a comb on the distal half. Habitat.—Peru. . . Holotype, o, Yurimaguas, April 10, 1920 (H. 8. Parish). Allotopotype, ?. Paratopotypes, 4 @ 9, April 10-16, 1920; paratype, 2, Iquitos, Peru, May 15, 1920 (H.'S. Parish). Geranomyia pilipes Walker. ee bow at pilipes Walker, Insecta Saundersiana, vol. 1, Dipt., This species was described from the Amazonian Region. Mr. Edwards writes me that the type is not to be found in the British Museum collection. The species is notable by its unusual size (length 10 mm.; wing expanse 20 mm.). Geranomyia separata sp. n. Head dark brown, the pale line on the anterior part of the vertex not reaching the occiput; mesonotum reddish yellow, the prae- scutum with three narrow dark brown stripes; femora brownish yellow, the tips broadly light yellow with a narrow subterminal brown ring; wings grayish subhyaline, spotted with brown, the 46 PROCEEDINGS OF THE ACADEMY OF [Part I spots at the origin of Rs and the tip of Sc separate; Sc rather long, _ extending to about one-third the length of Rs. Male.—Length (excluding rostrum) about 6.4 mm.; wing 6.4 mm. Female.—Length (excluding rostrum) 7.6 mm.; wing 8 mm.; ros- trum alone 2.6 mm. Rostrum black, in the male type broken, in the females rela- tively short. Antennae brownish black. Head dark brown, the vertex between the eyes more grayish, this color extending back- ward but not attaining the occiput. Mesonotal praescutum reddish yellow with three distinct narrow dark brown stripes; lateral mar- gins of the praescutum infuscated; scutal lobes with the proximal margins dark brown, the median area and the scutellum whitish; postnotum dark brown, somewhat plumbeous. Pleura obscure yel- low; the dorso-pleural region darker. Halteres pale brown, the knobs dark brown. Legs with the coxae and trochanters light yellow; femora. pale brown, yellowish basally, darkening to beyond midlength, thence suddenly light yellow, at about midlength of this yellow tip with a narrow brownish black annulus; tibiae light brown, the tips blackened; tarsi light brown, passing into black at the tips. Wings grayish subhyaline, cells C and Sc more yellowish; a rather heavy brown pattern arranged as follows: Base of cell Se; a broad seam on the supernumerary crossvein in cell Sc; a seam at the origin of Rs, continued some distance down the vein; an entirely separate seam at the tip of Sc; stigma large, subtriangular; cord and outer end of cell 1st M. seamed with brown; a-cloud along vein 2nd A near its outer end. Venation: Sc rather long, Sc; ex- tending some distance beyond the origin of Rs, about opposite one-third the length of Rs; Rs long, slightly angulated near origin; r-m short; cell Jst M, a little shorter than M,+. beyond it; basal deflection of Cu, just before the fork of M. Abdomen dark brown, the sternites paler. Habitat.—Brazil, Peru. Holotype, #, Yurimaguas, April 16, 1920 (H. S. Parish). Allotopotype, ¢, April 12, 1920. Paratype, 2, Teffé, Brazil, January 9, 1920 (H. S. Parish). The paratype from Teffé is larger and brighter colored than the allotype but undoubtedly pertains to this species. Geranomyia separata resembles G. insignis Loew and related species, but is readily told by the longer subcosta with the dark marking at the origin of Rs separate from that at the end of Sc. Geranomyia cinereinota Alexander. 1913. Geranomyia cinereinota Alexander, Ent. News, vol. 24, p. 407. Teffé, Brazil, December 7, 1919, to February 4, 1920 (H. S. Parish). ” = ee en ee, y * ; r 3 4 d 4 ; E : 1921] NATURAL SCIENCES OF PHILADELPHIA. 47 Yurimaguas, Peru, April 5, 1920 (H. 8. Parish). _Napo River, Peru, June 6-16, 1920 (H. 8. Parish). Genus DICRANOMYIA Stephens. 1829. Dicranomyia Stephens, Cat. Brit. Ins., vol. 2, p. 243. In the territory of the Brazilian Amazons, species of the genus Dicranomyia appear to be very uncommon both as regards species and individuals. In Peruvian territory, however, they become more numerous. Dicranomyia capnora sp. n. Antennae dark brown, the first scapal segment white; front and anterior part of the vertex silvery-white pubescent; vertex with a conspicuous conical tubercle; mesonotum yellowish orange, the lateral margins darkening into clove-brown; legs pale testaceous yellow, the tarsi and tips of the tibiae white; wings deep smoky, the costal and apical regions more intense; a narrow dark pattern along the cord, outer end of cell /st M, and origin of Rs; Sc long. Male.—Length 5.5-6.5 mm.; wing 7.7-8.3 mm. . Female.—Length 6.6 mm.; wing 7.8 mm. Rostrum and palpi brownish black. Antennae with the first segment of the scape silvery-white; remainder of the antennae dark brown; the flagellar segments in the male are long-cylindrical, each with a short basal pedicel that is paler than the rest of the segment. Head moderately broad; front and anterior part of the vertex pure silvery-white; remainder of the head dark brown; vertex produced into a conspicuous conical elevation that is directed dorsad and slightly caudad. Mesonotal praescutum with the broad median area conspicuous yellowish orange, gradually darkening into clove- brown on the lateral margins of the sclerite; median area of the scutum and the scutellum yellowish orange, the lateral areas darker; postnotum pale brown. Pleura testaceous yellow. Halteres dark brown. Legs with the coxae and trochanters light yellow; femora and tibiae pale testaceous yellow, the apex of the tibiae and the tarsi excepting the terminal segment white; last tarsal segment and the claws blackish. Wings with a strong smoky tinge, more intense along the costal and apical regions; the basal, posterior and anal cells sometimes with paler centers; a sparse darker brown pattern, these spots arranged as follows: at origin of Rs; tip of Sc; 7; along the cord and outer end of cell 1st M.; veins dark brown. Venation: Sc long, extending to beyond midlength of the long Rs, Sc. at the tip of Sci; Rs strongly angulated to slightly spurred at origin; de- flection of R.+; about equal to the basal deflection of Cu,; cell 1st M, closed, comparatively short; basal deflection of Cu, close to the fork of M but slightly variable in position, longer than Cus. Abdominal tergites dark brown, the sternites and hypopygium more yellowish brown. Male hypopygium with the dorsal pleural 4 48 PROCEEDINGS OF THE ACADEMY OF [Part I appendage a rather stout, almost straight, flattened hook with the tip slightly curved; ventral pleural appendage an oval flattened lobe, the inner face produced proximad into a flattened glabrous lobe, the tip with a few delicate setae. Gonapophyses appearing as broad flattened plates with the outer proximal angle narrowed into a point. Ovipositor with the valves very short, the tergal valves slender, acicular, strongly curved; sternal valves compressed, the tips subacute. Habitat.—Peru. Holotype, o&, Napo River, June 12, 1920 (H. 8. Parish). Allotopotype, 2, June 16, 1920. Paratopotypes, 6