DASYPOGONIN^ 



713 



43 (44) Antennte (fig. 386) not elongate ; style less than half the length 



of the third joint and usually pointed (but not in G. fulvicornis). 



Cyrtopogon. 



44 (43) Antennce (fig. 387) elongate ; style short, spatulate, and rounded 



at the tip. Hystrichopogon. 



Fig. 3S6. — Cyrtopogon maculi- 

 pennis (J. x 22. 



B^G. 387. — Hystrichopogon hirticeps (J . 

 (After Hermann.) 



45 (42) Face without a distinct knob (unless in some species of 



Scylaticus). 



46 (49) Face-beard bristly against the mouthmargin but fine-haired above. 



Bristles on the thorax (including two or three pairs of prae- 

 scutellar) numerous and strong ; humeral bristles (2-4) small but 

 distinct ; ocellar bristles (usually six) unusually strong ; pleurae Avith- 

 out any tuft of pubescence on the small praealar callus * (v. fig. 399) at the 

 top of the mesopleural suture and lying immediately behind the top 

 hind corner of the mesopleurse. Antennae with the two basal joints 

 almost equal in length. Alulae well developed. Fair-sized flies, 



47 (48) Thorax strongly humped anteriorly so that it is far above the level 



of the head. Antennse with a long strong forwards-pointed 

 bristle beneath the second joint (fig. 388) ; style unusually 

 long and pointed, with a short basal joint but with the second 

 joint about (or more than) half as long as the third antennal 

 joint. Heteropogon. 



48 (47) Thorax moderately humped anteriorly so that it is not much 



above the level of the head. Antennse with only normal 

 bristly hairs on the second joint (fig. 389) ; style much shorter 

 than the third antennal joint. 



Face, thoraXj and abdomen narrower than in Heteropogon. 



Anisopogon. 



* Tegula of Berlese. 



