Lannapsyche setschuana Malicky & Chantaramongkol 1995
Creators: name: Morse, John C.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Odontoceridae
Lannapsyche
Lannapsyche setschuana

description: Lannapsyche setschuana Malicky 1995
(Figs. 1, 3)
Lannapsyche setschuana Malicky 1995b: 25 –26. Type locality: Si-chuan (China).
Our specimens were collected from North China (Oriental-East Palearctic boundary). The male genitalia of the specimens are closely congruent with those of Lannapsyche setschuana specimens from Central (Oriental) China, Si-chuan Province (Jin-lang Tai, W. Cheng-du). For clear comparisons, the male genitalia are re-illustrated and redescribed.
Redescription: Adult. Length of each male forewing 11.0– 11.2 mm (n = 4). Specimens in alcohol generally dark brown, warts on head and thorax yellow. Mesal setal wart present on first segment of each maxillary palp (Fig. 1E). Wing venation very similar to that of Lannapsyche chantaramongkolae and, in each forewing forks I, II, III, and V present; forks I, II, and V sessile, fork III petiolate; and single anal vein with row of bristles ventrally (similar to Fig. 5 Fa), however R1 not unusually close to R2 distally, R4 not as strongly curved anterad, and apical distances between R2–R3 and R3–R4 less than between R4–R5; in each hind wing, R1 confluent with R2 shortly after end of Sc (as in Fig. 5 Fp) and short crossvein r -m present between R5 and MA (Malicky 1995b, fig. on p. 25).
Male genitalia Pleura IX each divided by longitudinal oblique groove into dorsal and ventral parts (Fig. 1A, long. gr.); in lateral view on each side, anterior margin of segment IX dorsally and ventrally concave leaving rounded production at anterior end of longitudinal groove about 1/3 distance from ventral margin; lateromedian apical lobe of IX at posterior end of longitudinal groove produced in 90° angle about 1/3 distance from dorsal margin (Fig. 1A, l.m.lob.) Tergum IX produced posteromesally into narrow triangular lobe, about 2 times as long as its basal width in dorsal view (Fig. 1B, t.IX). Sternum IX deeply concave anteriorly and broadly concave posteriorly in ventral view (Fig. 1C, s.IX). Preanal appendages present as convex, setose areas, merged with sides of mesal projection of segment IX and base of segment X (Figs. 1A, 1B, pre.app.). Segment X forming pair of broad, rhomboid lobes, tapering from mid length to apices in lateral view (Fig. 1A, t.X), dorsal edges of these lobes each expanding laterad to form pair of elongate plates, each about 4 times as long as its average width and with triangular subbasolateral projection in dorsal view (Fig. 1B, t.X), median cleft between lobes 6/7 as long as tergum X and pleural portions of segment X not visible when viewed dorsally. Inferior appendages with coxopodite parallel-sided, stout, and straight in lateral view, each with length between base of coxopodite and its subapical lobes about 2 times its width, subapicodorsal lobe about 2 times as long as subapicoventral lobe (Fig. 1A, inf.app., sub.d.lob., sub. v.lob.); harpago broadly triangular, embedded between subapical lobes of coxopodite in lateral view (Fig. 1A, har.), wider apex thickly covered caudally with short, black, triangular setae, setae-bearing area elongated in kidney shape, with mesal margin slightly concave in ventral view (Fig. 1C, har.). Phallus almost as long as inferior appendages; phallobase highly sclerotized, constricted at 1/3 distance from base, with distal 2/3 curving backward and bulged in cup shape, fused ventrally with lightly sclerotized phallicata (Fig. 1D, ph.b., ph.c.), in ventral view bulged portion much broader than base (Fig. 1E); ejaculatory duct and phallotremal sclerite conspicuous (Fig. 1D, ph.scl.), phallotremal sclerite elongate with U-shaped opening in ventral view.
Female genitalia. Segments IX and X and gonopods VIII and IX all firmly united and much sclerotized, dark brown. In dorsal view, anterior parts of tergite IX (Fig. 3B, tIXa+IXb) short mesally with median length about 1/5 length of lateral margins. Posterior part of tergite IX and tergum X (Fig. 3B, t.IXc+X) deeply divided into pair of lobes, each apical lobe gradually narrowing to subtruncate apex, about 1/2 as broad as basal width; apical setae black, long and straight, about as long as apical lobes; width between apical portions of two apical lobes almost 2 times width of each lobe itself. In lateral view, dorsal margins of IXc+X forming continuing concave line, with apex of IXc+X tilting upward; on each side, longitudinal lower lateral margin of anterior parts of tergite IX (Fig. 3A, t.IXa+IXb) almost truncate. In ventral view, spermathecal sclerite of processus spermathecae (Fig. 3C, sper.scl.) slightly narrowed at anterior distal 1/6 with flat apex; posteriorly this sclerite ending in 2 darkly sclerotized acute structures. On subgenital plate (Fig. 3C, subg.pl. = fused external gonopods VIII and IX, or e.gon.VIIIa+VIIIb+IX), grey band forming posteriorly open square around region below spermathecal sclerite.
Specimens examined. PR CHINA: Shaan-xi Province: Feng-xian County, north slope of Qin-ling Mountains, Mount Tian-tai of Baoji National Forest Park, light trap, N34.3°, E107.1°, alt. 1500 m, 10-vi-1998, Coll. Yang L-f., 2 males, 7 females; same date except at 1900 m, coll. Sun Ch-h. and Du Y-z., 1 male, 1 female; same data except collected by sweep net on 09-vi-1998 by Sun Ch-h., 1 male 7 females. Zhou-zhi County, north slope of Qin-ling Mountains, headwater of Hei-he River, Hou-zhen-zi Town, light trap, N33°51’09’’, E107°50’15’’, alt. 1250 m, 25-v-1995, Coll. Du Y-z., 1 male, 1 female. Ning-shaan County, Huo-di-tang Forest Experiment Station, Ban-qiao Creek, sweep net, N33°25’, E108°25’, alt. 1600 m, 05-vi-1998, Coll. J.C. Morse, 3 males.
Distribution: Oriental Region of China (Si-chuan) and Oriental-Palearctic Boundary Region of China (Shaanxi, north slope of Qin-ling Mountains).
description: Published as part of Morse, John C., 2017, Lannapsyche and Marilia species of China (Trichoptera: Odontoceridae), pp. 81-99 in Zootaxa 4320 (1) on pages 83-84, DOI: 10.11646/zootaxa.4320.1.5, http://zenodo.org/record/891584