I/I B R.ARY OF THL UNIVERSITY OF ILLINOIS 590.5 Fl v.3L Cop.O HISTORY SURVEY NATURAL HISTORY SURY* IX. B FIELDIANA . ZOOLOGY Published by CHICAGO NATURAL HISTORY MUSEUM Volume 31 APRIL 11, 1947 No. 12 SOME NEUROPTEROUS INSECTS FROM SZECHWAN, CHINA NATHAN BANKS MUSEUM OF COMPARATIVE ZOOLOGY The neuropterous insects collected for Chicago Natural History Museum by Herbert Stevens in 1929, in the course of the Kelley- Roosevelts Asiatic Expedition to Szechwan, include a number of species of much interest; six are new and others have not been recorded since their original description. All are described or recorded herein. Types, except as otherwise indicated, are in the collection of Chicago Natural History Museum. Order Neuroptera Family Hemerobiidae Hemerobius vaillanti Navas Hemerobius vaillanti Navas, Broteria (Zool.), 24, p. 25, 1927. Two females from Tu-pa-keo, September 5, altitude 7,400 feet. Described from Kansu. The cross-vein from medius runs very obliquely and ends at or just beyond the origin of the first radial sector. Boriomys sinica Tjeder Boriomyia sinica Tjeder, Arkiv Zool., 29A, No. 8, p. 10, 1937. One female, from Shuangyo to Tu-pa-keo, August 29. Described from South Kansu. Phlebiomus yunnanus Navas Phlebiomus yunnanus Navas, Rev. Acad. Cien. Zaragoza, 7, p. 23, 1923. Several from Tu-pa-keo, September 4 to 8, altitude 7,400 feet. Described from "Distr. de Yunnan-Fou." The genus is hardly more than a subgenus of Micromus. Some of the costal cross-veins are connected; otherwise it is a Micromus. Eumicromus dissimilis Nakahara from Japan belongs to this genus. No- 593 97 THE LIBRARY OF THE I APR 2 2 1947 Natural History ^MNfftghy OF ILLINOIS T i JSJ 98 FIELDIANA: ZOOLOGY, VOLUME 31 Allemerobius flaveolus Banks Allemerobius flaveolus Banks, Proc. U. S. Nat. Mus., 88, p. 184, 1940. From Tu-pa-keo, September 7. Described from Mount Omei, Li Fan, and Weichow, all in Szechwan. Neuronema sinensis Tjeder Neuronema sinensis Tjeder, Arkiv Zool., 29A, No. 8, p. 6, 1937. Various specimens from Shuangyo to Tu-pa-keo, August 28, 30, September 2; and Tu-pa-keo, September 4, 6, 8. Described from South Kansu. Family Chrysopidae Chrysopa kiansuensis Navas Chrysopa kiansuensis Navas, Notes d'Ent. Chinoise, Mus. Heude, 1, fasc. 14, p. 3, 1934. From Tu-pa-keo, September 4. There are but six cubital cross-veins beyond the divisory, other- wise it appears normal. Described from Loubow, Kiangsu. Chrysopidia fuscata Navas Chrysopidia fuscata Navas, Rev. Russ. d'Ent., 14, p. 12, 1914. Tu-pa-keo, September 5, 7. Described from Tali, Yunnan. The pronotum is about as broad as long, narrowed in front; the antennae do not show the stripe on the basal joint; in one specimen the sides of the pronotum are plainly dark, in others scarcely at all; the inner gradates do not extend basally. Tumeochrysa immaculata Navas Tumeochrysa immaculata Navas, Broteria (Zool.), 9, p. 56, 1910. From Shuangyo to Tu-pa-keo, August 30, and Tu-pa-keo, September 5 to 7. There is much variation in the forking of the anal vein, and in the course of the divisory veinlet, and some also in the hind wings. In one specimen the divisory veinlet is of the Nothochrysa type in both wings, in another of the Chrysopa type, in others Chrysopa type in one wing, Nodita type in the other. In some specimens the anal vein ends in one forked and one simple vein, in others it ends in two forked veins, and in one in three forked veins. There may be two or but one branch from the third cubital cell to the margin; in one the basal vein is simple, in one the branch does not run into the end J i BANKS: NEUROPTEROUS INSECTS FROM SZECHWAN 99 of the anal vein as in most specimens; sometimes there is an occa- sional cross-vein in the costal or radial area. The joints of the antennae are short, usually about as broad as long; thus Tumeochrysa belongs to the primitive group along with Nadiva, Goliva, Anomalochrysa, Abachrysa, and an undescribed genus from Australia. In the great number of cross-veins in the middle area of the fore- wing Tumeochrysa is nearer to Anomalochrysa; the South American forms usually have few if any extra cross-veins, and the gradates form very long rows; but the divisory and anal veins are more irregular in some of the neotropical forms than any of the allied genera. Chrysoplectra Navas is a synonym of Tumeochrysa. T. immaculata was described from "Tein-Tsuen (China)." Family Osmylidae Thyridosmylus epiphanes Navas Thyridosmylus epiphanes Navas, Publ. Junta Cien. Nat. Barcelona, (Zool.), 11, p. 16, 1917. From Shuangyo to Tu-pa-keo, August 29, and Tu-pa-keo, September 8; altitude 7,400 feet. The genus is hardly more than a subgenus of Spilosmylus. It was described from Tali, Yunnan. Osmylus posticatus sp. nov. Type from Tu-pa-keo, Szechwan, China. Altitude 7,400 feet. Male. Collected September 8, 1929. Paratype. — A female, same data as the type, in the Museum of Comparative Zoology. Description. — In general appearance much like the Japanese D. tessellatus, with dark spots over much of forewings; these spots, however, are larger in the posterior part of the wing and here some of them tend to form two oblique brown streaks reaching from the hind margin outward (in tessellatus when there are streaks they extend obliquely toward base). Some dark spots along costal area, longer near stigma. The outer gradate series heavily marked with brown, and often spots extending basally; inner gradates less marked with brown; most of the radial cross-veins brown. and several long brown streaks in the cubital area; outer and hind margins spotted with brown, often extending inwardly; venation almost wholly dark; in hind wings no spots except in stigmal area; venation dark. The head is- yellowish, a black W-mark under bases of antennae, and a fainter brown V-mark above them, a faint brownish band 100 FIELDIANA: ZOOLOGY, VOLUME 31 across clypeus, and some brown marks on posterior part of vertex; antennae brown. Pronotum yellowish brown in the middle, darker on the margins; meso- and metanotum dark on sides, pleura more yellowish, but with brown patches; abdomen dark brown above, but little paler beneath; legs pale yellowish, tips of all tibiae distinctly dark. Structure in general similar to other species. The costal cross-veins, except a few near the base, are usually forked near the margin; the middle area of the forewings is very densely reticulate, some longer cells before the inner gradates; the area between the gradates rarely with cross- veins; about nine inner gradates and about fourteen outer ones; about eleven branches of the radial sector before the stigma. In hind wings, the inner row of gradates irregular, the outer row even, and of about fifteen veinlets. Length of forewing 20.5 mm., width 7 mm. Order Corrodentia Family Psocidae Psocus gibbosus Sulzer Psocus gibbosus Sulzer, Abgek. Gesch. d. Insecten, p. 173, 1776. Three from Tu-pa-keo, September 3 to 5, altitude 7,400 feet; between Shuangyo and Tu-pa-keo, August 30. A species widely common in Europe and northern Asia. Order Plecoptera Family Perlidae Kamimuria fulvescens Klapalek Kamimuria fulvescens Klapalek, Casopis, Spol. Ent., 9, pp. 89, 105, 1912. From Ta-tsien-lu, June 19. Described from Mow-Pin and Chen-si, China. Kamimuria latior Klapalek Kamimuria latior Klapalek, Casopis, Spol. Ent., 9, pp. 91, 105, 1912. Between Ta-tsien-lu and Uulong-Kong, June 11, 13, and below Che-to, June 3. Described from between Sogon Gomba and river I-Tschu, China. Order Trichoptera Family Limnephilidae I lalesinus tenuicornis Ulmer Halesinus tenuicornis Ulmer, Notes Leyden Mus., 29, p. 4, 1907. BANKS: NEUROPTEROUS INSECTS FROM SZECHWAN 101 From Tu-pa-keo, September 3, 4, 6, altitude 7,400 feet, and between Shuangyo and Tu-pa-keo, August 30. Pseudostenophylax ampins McLachlan Pseudostenophylax amplus McLachlan, Ann. Mag. Nat. Hist., (6), 13, p. 421, 1894. From Uulong-Kong, June 27, altitude 11,500 to 13,000 feet. Described from "Tachienlu, Szetschwan." Pseudostenophylax grahami Martynov Pseudostenophylax grahami Martynov, Proc. U. S. Nat. Mus., 79, p. 12, 1931. From Tu-pa-keo, September 4, altitude 7,400 feet. Described from Mount Omei and Yellow Dragon Temple, Szechwan. Pseudostenophylax brevis Banks Pseudostenophylax brevis Banks, Proc. U. S. Nat. Mus., 88, p. 216, 1940. From Uulong, south of Ta-tsien-lu, June 26, altitude 11,200 feet! Described from Washan, Szechwan. Evanophanes insignis Banks Evanophanes insignis Banks, Proc. U. S. Nat. Mus., 88, p. 211, 1940. Three from Tu-pa-keo, September 3, 7, altitude 7,400 feet. Described from Washan, Szechwan. Previously known from the unique type in the United States National Museum. Family Rhyacophilidae Himalopsyche alticola Banks Himalopsyche alticola Banks, Proc. U. S. Nat. Mus., 88, p. 200, 1940. From Tu-pa-keo, September 3, 4, 8, altitude 7,400 feet, and on march from Shuangyo to Tu-pa-keo, August 29. Described from several localities in Szechwan. Himalopsyche placida sp. nov. Figure 9. Holotype from Tu-pa-keo, Szechwan, China. Altitude 7,400 feet. Male. Collected September 7, 1929. Paratype. — A male, collected between Shuangyo and Tu-pa-keo, Szechwan, August 29, 1939; in the Museum of Comparative Zoology. Description. — Head yellowish brown, thorax brown, abdomen brown above, yellowish below; palpi pale, antennae yellowish, each joint with a brown band above; legs yellowish, front and middle tibiae with a dark band near middle and a broader dark band before 102 FIELDIANA: ZOOLOGY, VOLUME 31 tip, basitarsus dark at tip, hind legs unmarked; male genitalia yellowish. Forewings much like other species, very pale, and reticulate or marmorate with brown, the brown spots in costal area very distinct, and in middle of wings the brown reticulation distinct and not so restricted to near veins as in H. alticola; the pale veins interrupted by brown streaks; hind wings hyaline, faintly brownish in front and at tip, veins yellowish. Structure and venation similar to H. alticola. Male appendages similar to those of H. navasi and H. excisa. The broad basal part of the superior appendages is much longer than FIG. 9. Himalopsyche placida, genitalia from side. in navasi; they are wide apart at base, but come together in a broad curve above the widest part of the inferior appendages; from thence is a very slender process tipped with spines. The inferior appendages are much broader in the middle than in navasi. The absence of wing-markings readily separates this species f rom» navasi. It differs from excisa in that the lower part of the inferior appendages is more slender, and the superior appendages are not nearly as broad, nor as long. Also, it has a slender apical part, lacking in excisa. Length of forewing 15-16 mm., width 5-5.5 mm. Himalopsyche hageni Banks Himalopsyche hageni Banks, Proc. U. S. Nat. Mus., 88, p. 197, 1940. Between Shuangyo and Tu-pa-keo, August 28, altitude 8,400 to 10,000 feet. Described from Ta-tsien-lu, Szechwan. Rhyacophila sinensis Martynov Rhyacophila sinensis Martynov, Proc. U. S. Nat. Mus., 79, p. 1, 1931. Between Shuangyo and Tu-pa-keo, August 29. Described from Songpan, Szechwan. BANKS: NEUROPTEROUS INSECTS FROM SZECHWAN 103 Rhyacophila marcida sp. nov. Figure 10. Holotype from Tu-pa-keo, Szechwan, China. Altitude 7,400 feet. Male. Collected September 6, 1929. Allotype. — A female, labeled "Probably Szechuan 1929, H. Stevens." Paratype. — A female, same data as the allotype; in the Museum of Comparative Zoology. Description. — Head and thorax black, abdomen dark above, paler beneath; legs beyond the dark coxae very pale, tarsi darker; basal joint of antennae black, pale beyond, each joint with a brown FIG. 10. Rhyacophila marcida, clasper from side, and penis. band across the middle; male genitalia dull yellowish; wings nearly black, a white mark on forking of medius, and white spots on outer margin, one in each space. Many long, curved black bristles on face, vertex, pronotum, and mesonotum, shorter but denser on basal pal- pal joints, last joint of palpus a little longer than preceding joints. In forewings, fork two extends back a little before fork one, forks three, four, and five are subequal in length, fork four is wider at tip than others; medius forks a little before forking of radial sector; in hind wings fork two is also before fork one. The lower appendage of the male is quite broad and rather deeply divided, the lower part almost twice as broad as the upper; the under side of the upper part has a row of short stout spines or teeth, and the sixth sternite has a small apical tooth in the middle. In the female, the terminal seg- ments are slender and extensile, the last with a bilobed tip. Length of forewing: male 8 mm., female 9.5 mm. Glossosoma aequalis Banks Glossosoma aequalis Banks, Proc. U. S. Nat. Mus., 88, p. 202, 1940. 104 FIELDIANA: ZOOLOGY, VOLUME 31 Many specimens from Tu-pa-keo, September 4, 7, altitude 7,400 feet, and on march between Shuangyo and Tu-pa-keo, alti- tude 8,400 to 10,000 feet, August 31. Described from Beh Luh Din, Wenchuan, and Kuanshien, all in Szechwan. Glossosoma minutum sp. nov. Figure 11. Holotype from Tu-pa-keo, Szechwan, China, feet. Male. Collected September 4, 1929. Altitude 7,400 FIG. 11. Glossosoma minutum. a, venation near discal cell; b, tip of abdo- men from side, and base of fore wings of male. Allotype. — A female, same data as the type. Paratypes. — Two specimens, same data as the holotype; one in the Museum of Comparative Zoology. Description. — Body brown, abdomen above black; legs yellowish, spurs nearly black; antennae yellowish, basal joint darker; palpi dark brown; wings yellowish brown. Many stiff, curved black bristles on head, basal joints of palpi, and pronotum. Venation much as in other species; the discal cell moderately broad, fork two extending back nearly halfway on cell, fork three almost as far back as fork two, fork four short and quite broad, fork five much longer and with only a very short pedicel; the area at anal base of forewing very slender, almost twice as slender as in G. anale, the surface covered with minute gray scale-like hair. The tip of the abdomen of the male is greatly enlarged and rounded above and behind, almost bulbous; below is a long process enlarged at middle and forked, the upper prong hardly one-half of the lower and more pointed. In the female the discal cell is more slender, the midfemur rather long and thick, the tibia much shorter and broader; the abdomen is dark at tip and with extensile tube. Length of forewing 4.5 mm. BANKS: NEUROPTEROUS INSECTS FROM SZECHWAN 105 Family Hydropsychidae Stenopsyche navasi Ulmer Stenopsyche navasi Ulmer, Arch. Naturg., 91, Abt. 1, Heft 5, p. 37, 1925. Between Uulong-Kong and Ving-Kuan-chiai, July 8, and between Shuangyo and Tu-pa-keo, August 29. Described from Tient Tsuen, Shantung Province, China. Philopotamus sinensis Banks Philopotamus sinensis Banks, Proc. U. S. Nat. Mus., 88, p. 209, 1940. Many specimens from Tu-pa-keo, September 4, 6, 7, altitude 7,400 feet, and on march from Shuangyo to Tu-pa-keo, August 30. Described from Wenchuan, Jedo Pass, and 0-Er, all in Szechwan. Hydropsyche rhomboana Martynov Hydropsyche rhomboana Martynov, Ann. Mus. Zool. St. Petersbourg, 14, p. 302, 1909. From Tu-pa-keo, September 4, 7. Described from eastern Tibet, but since recorded from Szechwan. Hydropsyche waltoni Martynov , Hydropsyche waltoni Martynov, Proc. Zool. Soc. Lond., 1930, p. 78, 1930. On march from Shuangyo to Tu-pa-keo, August 28, 29. The specimens at hand agree well with a paratype in the Museum of Comparative Zoology. Described from Tibet. Plectrocnemia tortosa sp. nov. Figure 12. Holotype from Tu-pa-keo, Szechwan. Altitude 7,400 feet., Male. Collected September 6, 1929. Allotype. — A female, same data as the holotype. Paratypes. — Three males and two females, same locality as the holotype, September 4-6; one female, labeled "Probably Szechuan 1929, Kelley-Roosevelts Exped., H. Stevens." A female and two male paratypes in the Museum of Comparative Zoology. Description. — Body brown to yellowish brown; palpi brownish; antennae pale yellowish, banded with brown, and more brown toward tips; legs dull yellowish; forewings dull yellowish to hyaline, with some brown marks, in male mostly in costal and nearby areas, in anal area, and along cubital vein; in female marked all over with brown, marmorate, with larger spots at end of anal vein and another a little before and above it; hair dull yellowish, veins brown; hind 106 FIELDIANA: ZOOLOGY, VOLUME 31 wings scarcely marked except just beyond the separation of sub- costa and radius. In forewings the discal cell is longer than its pedicel, longer than in P. conspersa, fork one about equal to its pedicel, fork two reaching back a little on discal cell, fork three with a short pedicel, fork four reaching back a little on median cell, fork five plainly wider near base than elsewhere, wider than tip of median cell, and then FIG. 12. c, from side. Plectrocnemia tortosa. Genitalia: a, from above; b, from below; much narrowed before end. In hind wing fork five is also much widened near the base. In the male genitalia there are two short projections above near the middle, and below them a pointed tip; from each side arises a slender, slightly sinuous, chitinous rod; the interior plates are very prominent, broad, the inner tip projecting, the end a little concave, and oblique; the penis is plain and rounded at the tip, but plainly enlarged a little before the tip. Length of forewing: male 8-9 mm., female 12 mm. Arctopsyche difformis sp. nov. Figure 13. Holotype from between Shuangyo and Tu-pa-keo, Szechwan. Male. Collected September 2, 1929. Allotype. — A female from Tu-pa-keo, Szechwan. Altitude 7,400 feet. Collected September 4, 1929. Paratypes. — Five males, one female, and one specimen of unde- termined sex, same locality as the allotype, September 4-7; one female, same locality as the holotype, August 29. A female and two male paratypes in the Museum of Comparative Zoology. Description. — Head brown; body brown to yellowish brown; antennae dull yellowish, basal joint brown, some joints near base dark at tip; legs yellowish; forewings densely marmorate with brown, some large pale spots in costal and subcostal areas and similar spots BANKS: NEUROPTEROUS INSECTS FROM SZECHWAN 107 along outer margin, one between each pair of veins; a dark spot on the ends of the veins; hind wings unmarked. Head with the warts as in A. lagodensis, maxillary palpi a little longer than in that species. The venation similar to lagodensis except that the discal cell is much longer, fully three times as long as broad, the median cell also longer than in other species. The male genitalia very different from lago- densis, more like Diplectrona. The sheath of penis a broad flat FIG. 13. Arctopsyche difformis. Genitalia: a, from below; 6, from side; c, from above. piece, nearly hyaline; the claspers indistinctly two-pointed, the outer part slender, curved and sharp-pointed. The superior plate short and broad, well rounded out, with two short processes at middle of margin; from below them project two short, curved, spine-like processes. The penis, seen from the side, is greatly enlarged below shortly before the tip. Length of forewing: male 9-10 mm., female 12 mm. UNIVERSITY OF ILLINOIS-URBAN*