2 (l). Larvae 22—23 mm long; head narrower than long; punctate pattern 

 on legs indistinct; stripes absent; outer plate of sclerite "c" with 

 massive, laterally projecting process which is curved at the end and 



bifid like a fork 



2. Himalopsyche sp. "larva hoplura M Lepn. (p. 307' 



1 . Himalopsyche gigantea Martynov (Rhyacophila 

 gigantea Martynov) 



Brodskii, 1935:75-76.- Lepneva, 1945: 62-73, Figures 1-11; 1958a:37-42; 

 1960:105-107. 



278 



278 



FIGURE 310. Himalopsyche gi- 

 gantea Mart. Full-grown larva, dorsal 



Full-grown larva. (Figure 310). Body 

 of characteristic form, long, flattened, 

 slightly tapering posteriorly; length 

 30—32 mm; sclerotized areas yellowish 

 brown, with a distinct punctate pattern; 

 coloration of membranous parts of live 

 specimens green, with a white network of 

 respiratory stripes and spots; gill filaments 

 whitish. 



Head broad (Figure 31 1), dorsoventrally 

 flattened; length 2.1 mm, width 2 mm. 

 Frontoclypeus with distinct brown anterior 

 margin; anterior part of sclerite yellowish, 

 with two pairs of indistinct dots at the 

 sides; posterior part brown,* with large 

 dark spots; similar dots on the dark dorsal 

 stripes and at the sides of the head; several 

 indistinct dots on the ventral side. 

 Anterior -margin setae small; all 3 setae 

 situated in a row in the angle of the 

 sclerite; lateral seta light; intermediate 

 and median setae brown; median setae 

 thicker than the others; frontal setae also 

 small and thick; anterior seta light, 

 shorter and lighter than the others; middle 

 seta situated on the dark tentorial pit; 

 posterior seta situated near the frontal 

 suture. Seta 9 long and strong, reddish 

 dark brown at the base; seta 11 situated 

 nearby, very thin and small; seta 7 is 

 similar to seta 9 but shorter and thinner; 

 seta 10 transparent and small, situated 

 lateral to the eye; the strong dark setae 14 

 and 12 are situated posterior to the eye 

 but near it; seta 12 slightly shorter and 

 thicker; setae 15 and 16 like the above 



The color of the sclerites and setae is given from alcohol specimens; when examined in preparations, the 

 sclerites are not reddish brown but yellow; setae and borders are also lighter than in whole larvae. 



299 



