the Aslliilfi! of AuslraJasia. 161 



5. Wings with three submarginal cells 6. 



Wings with two submarginal cells 7. 



6. Second submarginal cell at most half as 



long as the first submarginal cell Promachwi, Loev,'. 



(Second submarginal cell as long or only a 

 little shorter than the first submarginal 

 cell rkiludicus, Wlk. 



7. Posterior branch of third vein curves for- 



ward to meet the costa at or before the 

 tip of wing; an appendix sometimes 



present 8. 



Posterior branch of third vein terminates 

 bevond the tip of wing ; no appendix . . 9. 



8. Ovipositor cylindrical, with a terminal 



circlet of spines rroctaeanthus, Macq. 



Ovipositor laterally compressed, without a 



terminal circlet of spines Erax, Scop. 



Subgenera of Asilus. 



9. Ovipositor laterally compressed 10,, 



Ovipositor conical , 17. 



10. Third joint of autennoe unusually long and 



broad, flattened Glaphyi'Qpyga, Schiner. 



Third joint of antennae normal shape, if 

 long always very long 11. 



11. End lamellae of ovipositor egg-shaped, 



wedged in ; thorax with bristles disposed 



like a mane Dysmachus, Wlk. 



End lamellae of ovipositor free, sjtyle-like ; 

 thorax with bristles not disposed like a 

 mane 12. 



12. Posterior border of eighth ventral segment 



in male more or less widened. Ovi- 

 positor in female not so long as in 



Neoitamus ..••■' Mackinms, Loew. 



Posterior border of eighth ventral segment 

 in male not widened 13. 



13. Legs prevailing shining yellow IleUymoneiira, Bigo^. 



Legs prevailing black or light and opaque- 

 coloured 14. 



14. Male genitalia club-like ; ovipositor long, 



including the sixth and seventh segments. 15, 

 Male genitalia not club-like; sixth and 

 seventh segments not included in ovi- 

 positor 16. 



15. Large species ; third posterior cell yery 



wide, Tibiae black Pararatus, gen. nov. 



Small species ; third posterior cell not very 



wide. Tibiae usually testaceous Neoitarnus, Ost.-Sack. 



16. Face with a very small tubercle. Legs 



mainly black Cerdistus, Loew. 



17. Large species ; wing very much curved 



outwards at costal border in the male . . Neoaratus, Ricarcjp. 

 Wing not (or hardly) curved outwards at 

 costal border in male 18. 



18. Abdomen with no bristles before the seg- 



mentations ; large or middle-sized, usually 

 jbright-coloured spepies ,..,,..,, J^, 



