iiybos. 339 



as long as 3rd joint, and distinctly pubescent for the basal two- 

 thirds, the remainder quite bare. Thorax- black, shining, sides 

 .and rnetanotum similar ; scutellum broad, brownish yellow, the 

 colour extending to the posterior angles of the thoracic dorsum. 

 Abdomen dark brown, Avith pale pubescence; venter similar. 

 Legs pale yellow. Fore tibiae with a single long bristle in the 

 middle ; middle tibiae with two such, one at one-third of its 

 length on the outer side, the other just before the middle on the 

 underside ; hind femora with a row of five rather long bristles on 

 apical fourth of underside, a long thin bristle in the middle, with 

 two long stiff hairs placed equidistantly between this central 

 bristle and the base ; remainder of legs with short pubescence. 

 Wings pale grey, inclining to yellowish on the costa ; stigma 

 indistinct ; halteres yellow. 



Length, 3 mm. 



Described from a <3 in the Indian Museum from Kurseong, 

 21. vi. 1910 (Annandale). 



This is probably Bezzi's bisetosus, but I do not like to sink it 

 ■■definitely until further specimens of both species have been 

 compared. 



269. Hybos gagatinus, Big". (PI. IV, fig. 6.) 



Hgbos gagatlna, Bigot, Ann. Soc. Ent. France, (6) ix, p. 127 (1889). 

 Hijbos gagatinus, Brunetti, Bee. Ind. Mas. ix, p. 15 (1913). 



6 . Head with eyes reddish brown ; proboscis blackish (broken 

 off) ; antennae blackish grey, with a very long arista ; * occiput 

 ■black. Thorax shining black ; a p re-alar bristle, one or two on 

 the pleurae, and two nearly erect, widely separated, scutellar 

 bristles ; lower part of thorax dirty brownish grey (not bluish 

 grey, as noted by me previously). Abdomen and venter blackish. 

 Legs moderately dark shining brown; anterior tibiae, the hind 

 knees broadly, and all tarsi, light brownish yellow. Legs shortly 

 hut distinctly pubescent ; middle tibiae with two long bristles on 

 upper half of outer side, two similar apical oues and also two 

 rather long, but more slender ones on distal half of hinder side ; 

 .all femora with a row of stiff long hairs below; hind femora with 

 -a row of well-separated long bristles below, also a row of stout, 

 very short-socketed spines ; front metatarsus with three long 

 isolated stiff hairs, in addition to the rather dense, short, ordinary 

 pubescence. Wings clear, very iridescent ; 6th longitudinal vein 

 .rather faint ; halteres yellowish. 



Length, 4 mm. 



Redescribed from the unique type in the Indian Museum from 

 Margherita, Assam. 



* In my note on this species (vide 1. c.) it was erroneously stated that the 

 antennae were missing, as on closer inspection it is found that one of: them is 

 .still wholly intact, though pressed close against the somewhat damaged head. 



z2 



