Stenopsyche jinxiuensis, Ji-Hua & Bei-Xin & Chang-Hai, 2014

Ji-Hua, Xu, Bei-Xin, Wang & Chang-Hai, Sun, 2014, The Stenopsyche simplex Species Group from China with descriptions of three new species (Trichoptera: Stenopsychidae), Zootaxa 3785 (2), pp. 217-230 : 227

Stenopsyche jinxiuensis sp. nov.

( Figs. 6a–f )

Adult (in alcohol). Length of forewing 22.0 mm (n=1). Forewing narrow and long, dark brown, with many light speckles. Hind wing triangular, semi-transparent. Wing venation ( Figs. 6a–b ) typical of genus, but in forewing crossveins r-m and m-cu transparent, distance between m-cu and cu twice length of cu.

Male genitalia. Abdominal segment IX annular, in lateral view shortest at insertion of preanal appendage, ventral 1/3rd of pleuron IX strongly produced anterad and posterad with ventral margin at least 4 times as long as dorsal margin; apicolateral angle long and acute, about 1/4th as long as preanal appendage; in ventral view anterior margin of sternum IX with semicircular indentation. Preanal appendage long, setose. Segment X is tonguelike, membranous with base broad and apex elongate, about 2/3rds as long as preanal appendage, apex incised in dorsal view. Intermediate appendage in dorsal view as long as segment X, curved inward at angle of 90° at 1/4th distance from base, and subapex narrowed abruptly, apex acute; in lateral view sinuate with acute apex. Superior arm long, about 2/3rds as long as preanal appendage, in dorsal view arched laterad, apex thick; in lateral view sinuate. Inferior appendage highly depressed in lateral view, sub-rectangular in ventral view, about 4 times as long as wide. Phallus with large 5 spines, endothecal armature bearing many fine spines.

Holotype male: CHINA, Guang-xi Province , Jin-xiu County, Jin-zhong Road, 24.13°N, 110.189°E, alt. 1100 m, 11 May 1999, by black light trap, collected by Han Hong-xiang.

Diagnosis. The new species belongs to the second subgroup, but differs from other members in that (1) segment X in dorsal view has its basal half broad and its distal half narrow (with lateral margins parallel to each other in S. stoetzneri ; sagittate in S. uniformis ; very short in S. longispina ; triangular in S. denticulata ; rectangular in S. acanthoclada sp. nov.); (2) the intermediate appendage is elongate, curved inward at an angle of 90° at 1/4th distance from the base (arched in S. stoetzneri and S. uniformis ; curved inward at an angle of 120° at 1/3rd distance from base in S. longispina ; short and thick, curved inward at an angle of 120° at half the distance from the base in S. denticulata and curved inward at an angle of 100° at half the distance from the base in S. acanthoclada sp. nov.).

Etymology. This species is named for the type locality, Jin-xiu County in Guang-xi Province, China.

Distribution. China (Guang-xi).

Figures

FIGURE 6. Stenopsyche jinxiuensis sp. nov., male: 6a–b, wing venation: 6a, right forewing, dorsal; 6b, right hind wing, dorsal. 6c-f, male genitalia: 6c, left lateral; 6d, segments IX and X, dorsal; 6e, segment IX and inferior appendages, ventral; 6f, phallus, left lateral.