338 EMPIDjE. 



8. Wings pale grey or clear ; stigma in- 



distinct or absent 9. 



Wings distinctly brown, at least an- 

 teriorly aud basally ; stigma large and 

 distinct ". nitens, Brun., p. 341. 



9. Palpi black 10. 



Palpi yellow jkivipalpis, Brun.. p. 342. 



10. Legs black ; length 3| mm nigronitidus, Brun., p. 342. 



Legs moderately dark browa; length 



2^ mm brunnipes, Brun., p. 343. 



267. Hybos bisetosus, BezzL 



Hybos bisetosus, Bezzi, Ann. Mus. Hung, ii, p. 324 (1904). 



" J $ . A very distinct species, characterised especially by the 

 slender, entirely pale legs. 



" Head with eyes wholly contiguous in both sexes, upper facets 

 larger than lower ones ; proboscis horizontal, as long as palpi, 

 dull yellow, more or less infuscated ; occipital margin with a 

 circlet of bristles ; antennae black or brown, 3rd joint elongate 

 oval, thin, with moderately long arista. Thorax moderately 

 convex, rather brilliant black ; anterior margin, pleura?, arid the 

 broad depression in front of the scutellum covered with grey 

 tomentum ; scutellum rounded, with grey tomentum. A long 

 presutural bristle, two pairs of long dorso-central ones ; two well- 

 separated rows of short feeble acrostichal bristles, which are not 

 easily visible ; scutellum with two bristles. Squamae and halteres 

 yellow. Abdomen shining black, with yellowish venter and pale, 

 moderately long pubescence, obtuse at tip in both sexes, but 

 rather larger in the male, in which the genitalia are large and 

 rounded. Legs rather slender, especially hind femora, which are 

 elongate but hardly incrassate. All legs pale yellow, except tips 

 of tarsi and the hind femora towards tips, which are somewhat 

 darkened, especially on upper side. Pubescence whitish ; fore 

 tibiae on anterior side near middle with a rather long bristle ; 

 middle pair with two very long and strong bristles at the middle, 

 one on the outer and one on the inner side ; middle tibiae also 

 with other shorter bristles at the middle and tip ; hind pair quite 

 incrassate at tip, and ciliated on outer side with short hairs ; hind 

 femora armed below with a row of seven or eight long strong 

 black bristles. Wings narrow, hyaline, rather iridescent ; stigma 

 hardly distinguishable from a pale cloud. 



" Nine males, eight females, Matheran, 00 metres, 8. vii. 02 

 (Biro): 1 (Bezzi.} 



Types in the Hungarian Museum. 



268. Hybos tenuipes, Brun. (PI. IV, figs. 7, 8.) 

 Hybos tenuipes, Brunetti, Rec. Ind. Mus. ix, p. 13 (1913). 



<$ . Head black ; upper eye-facets red, and much larger than 

 the lower ones, which are black ; antennao black, arista four times 



