SIMULIUM. 191 



is slightly reddish brown at the tip, and that (being denuded) no 

 golden yellow hair is visible on its dorsuin, though such is probably 

 present in perfect specimens. Abdomen wholly black, dull. Legs : 

 fore coxse yellowish, posterior coxae black ; all trochanters brownish 

 yellow. Femora black, but fore pair a little yellowish at the 

 base. Fore tibiae whitish yellow, except a little blackish at the 

 tip ; posterior tibiae yellowish on basal half, blackish on apical half. 

 Tarsi exactly as in the previous species. Wings clear ; venation 

 normal. Halteres bright yellow. 



Length 1^ millim. 



Describee! from a single female in the Indian Museum, taken 

 by Dr. Annandale at Kurseong, 18. vi. 10. 



141. Simulium senile, Brun. 



Simulium senilis, Brunetti, Rec. Ind. Mus. iv, p. 288 (1911). 



(5 1 . Bead : eyes closely contiguous, the head applied very closely 

 to the thorax. Proboscis, palpi, antennae and underside of head 

 wholly black. Thorax black, with short bright yellow hair. 

 Sides black, with a little greyish reflection. Scutelluni black, with 

 bright yellow hair; metanotum black. Abdomen black, with 

 moderately sparse but rather ragged yellowish or brownish yellow 

 hairs, which are distinctly longer than in any other Oriental species 

 and present an appearance of shagginess. The 1st segment has 

 the charactistic (generic) ridge a little pale, with, towards each 

 side, very long shaggy brownish yellow hair which reaches nearly 

 to the middle of the abdomen. Legs : fore coxae pale yellowish, 

 posterior coxae blackish. All femora yellowish, a little darker at 

 the tip, especially the hind pair. All tibiae dirty yellowish, a 

 little darker towards the tip ; both femora and tibiae with golden 

 yellow hair, which is less obvious on the latter. Anterior tarsi 

 black, narrow, not at all enlarged, metatarsus equal in length to 

 the remainder of the tarsus, the whole tarsus about as long as the 

 tibia ; hind metatarsus enlarged, two-thirds as long as the tibia, 

 yellowish, the tip black, remainder of tarsus black with the bases 

 of one or two of the joints a little yellowish. Wings colourless, 

 venation normal. 



Length 3 millim. 



Described from a single male in good condition in the Indian 

 Museum taken by Dr. Annandale, 8. v. 07, at Phagu, 8700 ft., 

 Simla district. 



The length and somewhat shaggy appearance of the hair on the 

 abdomen effectually distinguishes this species from other Eastern 

 -ones. 



142. Simulium indicum, Bech. 



Simulium indicum, Becher, Journ. Asiat. Soc. Beng. liii, p. 199, 

 pi. xiv (1884). 



r? $ . Head mainly blackish. Eyes of male closely contiguous 

 from vertex to antennae. Frons of female about one-third of the 



