A NEW SPECIES OF THE GENUS H1MALPOSYCHE BANKS,

Abstract. Himalopsyche trifurciila sp.n, described from southwestern China. It is a member of the navasi group, obviously the sister species of H.navasi Banks 1940 from SE and SC China. Up to now, about 40 species of the genus Himalopsyche have been found in the world, of which 19 are found in the western and south-western regions of China. Schmid (1966) divided Himalopsyche into 5 groups, presently known Chinese species belong to kuldschensis group (6 spp.), tibetana group (6 sppTJ ^ anomala " group (5 spp.) and navasi group (2 spp.). The angnorbui group has not been found in China so far. Type specimens of the new species are deposited in the collections of the Department of Plant Protection, Nanjing Agricultural University. The terminology for male genitalia used in this paper follows that of Schmid (1966). Himalopsyche trifurcula n.sp. Male (in alcohol): Body length 12 mm, forewing length 15 mm. Head light yellowish, antennae and palpi almost pale. Meso- and metanotum brown, legs brown, tibia and tarsus with black brown spines, arranged in a line on mid-tibia. Forewing pale yellowish, translucent, with irregular brown spots near each end of vein, base of anterior margin and anal region brown. Hindwing pale, translucent. Abdomen brown to yellowish above and light yellowish beneath, with black spots dorsal ly.- Male genitalia: Segment 9 rectangular in lateral view. Segment 10 membranous. Pre-anal appendages paired long processes, shortly connected at the base, strongly curved ventrad in lateral view. Anal sclerite heavily sclerotized, slightly tapered, 2 times as long as wide, with apex hooked down and backward. The basal joint of inferior appendages large and stout, 2 times as long as high, deeply excised distally, with apico-ventral ends produced in broad lobes, each with apical margin serrated. The second segment of inferior appendages much smaller, its apex densely covered with short, dark spines. Phallus complex: aedeagus plate-like, with two fine and pointed lateral lobes viewed dorsally. A pair of parameres heavily sclerotized, strongly curved dorsad in 90 degrees. Female unknown. Holotype d1: Yunnan, Yuan-yang county, E-zha-xiang, a stream 10 km W of Ha-bo-cu