DASYPOGONINiE 



711 



23 (22) Sciitellum without any marginal bristles. 



Style short, blunt, and cylindrical, with a very short bristle at its 

 upper angle (fig. 381). Hind femora thickened ; hind tibiae ending in 

 a hooked thorn. 



Strobilothrix. 



24 (19) Hind femora strongly thickened, and beset with spines on the 



underside. Marginal cell obviously closed. 



Pubescence very short. Face knob absent. Third antennal joint 

 narrow and bare. 



HOPLISTOMERUS. 



25 (18) Claws elongate ; pulvilli absent. 



Ambient vein absent. 



SiSYRNODYTES. 



26 (17) First posterior cell wide open. 



27 (32) Claws elongate ; pidvilli almost or quite absent. 



Fig. ZSl.—Strohilothrix alUpila ? . (After Becker.) 



Fig. 382. — Dioctria Baumhaiteri (J. (Right front tarsus.) 



Fig. 3S3.—Crohilocerus 

 megilliformis ?. x 22. 



28 (29) Antennse very wide apart at the base. 



Thorax with bristles extending like a mane up to the front. 

 Fourth posterior cell open. Asilvs-like flies. 



Anarolius. 



29 (28) Antennse close together at the base. 



30 (31) Thorax with bristles extending like a mane up to the front. 



Pubescence slight. Fourth posterior cell closed at the wingmargin. 



Ehadinus. 



31 (30) Thorax without mane-like bristles. 



Pubescence similar to that of Isopogon, but with traces of prse- 

 sutural, supra-alar, and postalar bristles; metapleural tuft large. 

 Head very broad and short. Femora without bristles. Fourth 

 posterior cell open. Stout bee-like flies. 



ACNEPHALUM. 



32 (27) Claws and pulvilli normal (fig. 382). 



33 (38) Abdomen short and robust. 



Alulae distinctly developed though not large. Face without any 

 distinct knob. Thick hairy flies of bee-like appearance and of medium 

 size. 



34 (35) Antennse ending in a tuft of bristly hairs (fig. 383) in place of a 



style. Crobilocerus. 



