176 BIBIOXID^. 



hair. Abdomen black, moderately shining, with blackish and dark 

 brown hairs ; belly similar. Legs normal ; femora black, with 

 brown hairs ; fore tibia; dark brown, ending in a light brown 

 spine, posterior tibise reddish brown, middle pair darker, black at 

 tips, shortly setose ; hind pair with softer hairs, darker towards 

 tips ; tarsi brown, darker at tips ; hind metatarsus thickened, 

 one-and-a-half-times as long as next joint. Wim/s nearly clear, 

 stigma dark brown, moderately long, and distinct; 4th longitudinal 

 vein forking exactly at junction with outer cross- vein, the 

 branches not widely separated. Halteres black. 



LeiKjth 5-6 raillim. 



Described from a male in the Indian Museum from Phakia, 

 Kumaon, 10,700 ft., 3. vi. 09 {A. D. Imms), and a second male in 

 the same collection from Tonglu, Darjiling, 10,000 ft., 21. iv. 10 

 (C. W. Beehe). 



This species bears a considerable resemblance to the European 

 B. hunger, Mg., but the latter has greyish brown, thicker, woolly 

 hair, and a comparison of specimens of the two species shows 

 them to be quite distinct. 



132. Bibio defectus, Bt-un. 



Bihio defectus, Bmnetti, Rec. Ind. Mus. iv, p. 280 (1911). 



J . Head and appendages wholly black, with very short pubes- 

 cence. Thorax shining black, with dark brown hairs ; scutelluni 

 and sides black. Abdomen black, with brown hairs, and greyish 

 hairs at the tip and at the sides near the base. Legs dark brown ; 

 hind femora nearly black, somewhat long, distinctly though not 

 greatly clubbed, hind tibiae a little lighter, with darker streaks, also 

 clubbed. Wings pale brownish gx-ey ; stigma moderately large 

 and distinct ; 4tli longitudinal vein forking distinctly before the 

 posterior cross-vein, the branches moderately diverging ; lower 

 branch of 4th and upper branch of 5th veins shortened, not 

 reaching the wing-margin. Halteres black. 



Length 3| millim. 



Described from a unique male from Kurseong, Darjiling, 

 13. viii. 09 (Paiva); preserved in the Indian Museum. 



This species comes into the group containing the European 

 species B. cJavijies, B. varipes, etc. 



Genus DILOPHUS, Mg. 



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



Acaiithocnemis, Blanchard, Gav's Hist. fis. polit. Chile, Zool. vii, 

 p. 355 (1852). 



Genotype, Tipida febrUis, L. ; designated by Latreille (1810). 



Head semicircular in male, broader in female. Eyes of male 

 contiguous, large, rounded, pubescent ; those of female small, 

 oval, divided by the very broad flat frons, bare ; three ocelli. 

 Proboscis rather prominent ; palpi long, 5-jointed, the 3rd joint 



