166 BIBIONID^E. 



longitudinal vein long, almost parallel to the lower one, originating 

 close to the anterior cross-vein. Legs bare, pulvilli greyish white. 



Length 8-12 millim. 



Described from four females in the Indian Museum (including 

 type) from Bhim Tal, 4500 ft., Kumaon, 19-22. ix. 06 (Annandale), 

 and from Soondrijal, Nepal. 



This is the only wholly black Eastern species except my 

 P. obscura, which is more dirty black in colour, with a tendency 

 to brown in the legs, besides being smaller in size. 



122. Plecia obscura, Brun. 



Plecia obscura, Brunetti, Rec. Ind. Mus. iv, p. 272 (1911). 



cJ . Wholly dirty black, minutely pubescent. 



Head : vertex in male wholly occupied by the very large cup- 

 shaped ocelli, which are placed, so to speak, on their sides with 

 their bases united. Antennae rather stout, black, scapal joints 

 equal in length, short ; 1st flagellar joint longer than each scapal 

 joint, slightly pinched in the middle; remaining seven joints 

 subequal, normal (no obvious minute apical joint in one example, 

 antennae incomplete in the other two). Thorax : on dorsum and 

 sides sometimes brownish (in one specimen). Abdomen : genitalia 

 of male forming a pair of strong hairy claspers, two-jointed, the 

 basal joint the longer and stronger, the 2nd joint ending apparently 

 in a single claw. In the female the genital organ is narrow, 

 cylindrical, short, ending in a pair of rather slender palp-like 

 appendages. Legs: femora dark mahogany-brown, remainder of 

 legs blackish brown. Wings blackish brown, darker on anterior 

 part ; venation as in P. indica. 



Length 67 millim. 



Described from two males and one female in my collection, 

 captured by me at Mussoori, 24. v. 05. Not in very good con- 

 dition, but the specific characters quite distinct enough to 

 recognise as representing a good species. 



Types in my collection. 



Genus BIBIO, Geoff. 



ibio, Geoffrey, Hist. d. Ins. ii, p. 571 (1764), 

 Pullata, Harris, Expos. Brit. Ins. p. 77 (1776). 

 Hirtea, Meigen, Illig. Mag. ii, p. 264 (1803). 



G-ENOTYPE, Tipula hortulana, L. ; by designation of Latreille 

 (1810). 



Head oval, flattened, much larger in the male than in the female. 

 Eyes in male contiguous or subcontiguous, the upper facets much 

 larger than the lower ones, and by their extent nearly over- 

 shadowing the latter altogether, usually densely pubescent, the 

 outline of the eyes being semicircular or bluntly conical ; in the 



