LEPTID^ 241 



6 (7) Proboscis short. Vermileo. 



7 (6) Proboscis exceedingly long (fig. 167). Lampromyia. 



8 (1) Face with a rounded socketed epistoma margined by broad side- 



cheeks (figs. 171, 172). 



Cubital fork long and rather narrow, more or less bell-mouthed, 

 and with the lower branch ending below the wing-tip (except in Hilari- 

 morpha). 



9 (14) Third joint of the antennte flagelliform and annulated (fig. 168). 



All the tibise spurred. 



CCENOMYIN^ (p. 259). 



10 (11) Scutellum armed. Eyes hairy. 



Small cross-vein absent and the upper branch of the postical fork 

 forming for a long distance the lower margin of the discal cell (fig. 186). 

 Head small compared with the thorax. Anal cell open. 



CCENOMYIA. 



11 (10) Scutellum unarmed. Eyes bare. 



Fio. 109. — icptts scolopaeea Fia. 170.— Athcrix marginata 



(J. X 33. (J. X 43. 



Fio. lOS.—Ccenomyia ferruginea 

 <J. X 22. 



12 (13) Flagellum ( = articulated third joint of antennoe) ending thin 



and pointed. Anal cell closed. 

 Small cross-vein hardly present. 



Artheopeas. 



13 (12) Flagellum ending in an annulated style. Anal cell open. 



Anacanthaspis. 



14 (9) Third joint of the antennse conical, round, or reniform, but never 



distinctly annulated. 



Front tibiai not spurred. Alula well developed (except in 

 IIilarimor2jha). 



1 5 (20) Hind tibite with two spurs. 



Eye-facets of the male approximately equal in size and without 

 any horizontal separation. 



Leptin^ (p. 260). 



16 (17) Third antennal joint bulbose or rather triangular (fig. 169); arista 



obviously apical. 



Anal cell (in British species) always open. 



2. Leptis. 



17 (16) Third antennal joint reniform (fig. 170); arista apparently dorsal. 



Anal cell always closed. 



Q 



