CLINOCERA. 365 



The two Indian species differ as follows : — 



Brownish-grey species, with dark brownish-grey legs ; 



length, 3 mm fluviatilis, Brim. 



Blackish-grey thorax, dark brown abdomen, brownish- 

 yellow legs ; length, 2 mm obscura, Brim. 



300. Clinocera fluviatilis, Brun. 



Clinocera fluviatilis, Brunetti, Rec. Ind. Mus. ix, p. 34 (1913). 



<$ « Head brownish grey, with isolated black bristles on the 

 occiput and a few on the frons; frontal tubercle bearing two 

 divergent bristles. Antennae black ; 1st and 2ud joints subequal ; 

 3rd onion-shaped, with moderately long, nearly bare arista. Pro- 

 boscis and palpi blackish, both short. Thorax very dark brownish 

 grey, nearly black, a whitish-grey stripe on the sides from just 

 below the shoulder to as far as below the ends of the transverse 



Fig. 33. — Clinocera fluviatilis, Brum, and antenna. 



suture ; ventral part of thorax also whitish grey. Dorsum bearing 

 several isolated bristles (many of these are broken off), of which 

 one is present on the shoulder, and one towards, but not at the 

 hinder corner; scutelluni with two long bristles. Abdomen dark 

 grey, normally pubescent. Genitalia large, consisting of a ventral 

 dark grey plate, a large concave lower piece, and a pair of claspers 

 above, these latter constituted of a large oval basal concolorous 

 joint and an elongate brownish-yellow horny bifid second joint : 

 the whole of the genitalia a little pubescent. Legs long and 

 slender, uniformly dark brownish grey, practically bare. Wings 

 very pale grey. The 3rd longitudinal vein forked beyond three- 

 fourths of its length, the branches approximate to one another 

 and parallel ; anterior cross-vein before middle of discal cell, and 

 at about one-third the length of the wing ; branches of upper 

 branch of 4th longitudinal vein issuing close together from discal 

 cell, thence gradually diverging ; the discal cell much longer on 

 its anterior border than its posterior one ; lower branch of 4th 

 vein nearly straight, rather more strongly developed ; 2nd basal 

 cell short, lying against the middle third of the upper basal cell ; 



