THEREVID.E 



543 



5 (4) Eyes of the male touching. Basal antennal joint bristly near 



the tip only. 



Discal cross-vein considerably beyond the middle of the discal cell. 



Baryphora. 



6 (1) Basal antennal joint much shorter than the head. Species 



sometimes furry. 



7 (8) Cubital fork long and rather narrow (as in Leptis), fig. 314. 



Fio. Zli.—Eaei^pcllia. 



Basal antennal joint shorter than the third ; style rather long 

 and distinctly jointed, two-thirds as long as the third antennal joint! 

 Fourth posterior cell closed. 



EUEPPELLIA. 



8 (7) Cubital fork wide open (as in fig. 312). 



Basal antennal joint as long as the third ; style short, indistinctly 

 jointed. 



9 (10) Tulvilli absent. 



Femora bare. , CCENOPHANOMYIA. 



10 (9) Pulvilli distinctly present. 



11 (12) Face and frons with long dense pubescence (fig, 315). 



Abdomen conical. Very furry species. 



1. Thereva. 



12 (11) Face bare; frons bare or in the male with pubescence not longer 



than that on the basal antennal joint. 

 Species almost bare, except in Dialineura, 



Fio. %\b.— Thereva noUlitata <J. x 18. 



FiQ. ZXii.—Dialine'ura anilis <J. x 25. 



13 (14) Basal antennal joint swollen, more bristly than usual, and as 

 long as the other two joints together (fig. 316). Frons 

 pubescent in the male. Furry species. 



Fourth posterior cell wide open. 2. DiALINEURA. 



