436 TIPULID2E. 



as long as the 2nd and 3rd posterior cells ; posterior cross-vein 

 placed just before the middle of the discal cell ; nil the veins 

 running to the distal margin of the wing, approximately parallel 

 Halteres pale yellow, clubs barely darker at tips. 



Length 4-5 millim. 



Described from four males and one female in the Indian 

 Museum from Darjiling, where it evidently is to be found on the 

 hillsides each autumn. The dates are : type male 28. v. 10, type 

 female 26. v. 1(X two other males 22. ix.08 and 1. x. 08, all these 

 being captured by me ; the remaining male taken by Mr. Paiva 

 at the same place, 9. viii. 09. 



Types and cotypes in the Indian Museum. 



This is evidently an Atarba, the discrepancies from the three 

 North American species of which figures are accessible being very 

 small. Moreover, slight differences in the venation of these 

 three species, A. puella, Will., pleuralis, Will., and picticornis, 

 O. S., are apparent. With Osten Sacken's generic description 

 this species entirely agrees, and it only varies in venation from 

 Needham's figure of picticornis by the posterior cross-vein being 

 placed nearly at the middle of the discal cell instead of in a line 

 with its basal side. 



In picticornis, too, the auxiliary vein reaches some short distance 

 beyond the origin of the 2nd longitudinal, and the veins running 

 to the distal wing-margin are practically parallel, or only very 

 slightly divergent, both these characters coinciding with those of 

 flava. In the other two North American species mentioned, the 

 2nd vein curves distinctly upward, especially in plewalis, whilst 

 the 3rd vein very distinctly curves downward making the sub- 

 marginal cell very widely open on the wing-margin ; whereas in 

 both j#aw and picticornis both veins are almost exactly equidistant 

 from each other and from the 1st longitudinal and anterior branch 

 of the 4th longitudinal respectively. 



Section ERIOPTERINI. 



Eyes bare, separated above by a more or less wide frons, 

 contiguous or approximate on the underside. Antennae 16- 

 jointed. Tibia? without apical spurs, empodia distinct, ungues 

 smooth on the underside. 



Wings with two submarginal cells ; four, sometimes five, 

 posterior cells ; discal cell closed or open (very variable in some 

 genera, often in the same species). In many genera the veins 

 are distinctly pubescent (to a varying extent in some genera, 

 such as Erioptera, according to the species) ; in others the 

 surface of the wings, as well as of the veins, is covered with 

 hairs. 



The subcostal cross-vein is sometimes placed at a considerable 

 distance anterior to the tip of the auxiliary vein (Erioptera, 



