TACHINIDAE OF AUSTRALIA. 



197 



basal node ol R , + - 



pettole 

 (R445 + M1) 



bend ol vein M 



10 



12 



13 



14 



»W ' ^»*> «M ^ ' ' 



18 



Figs 10-19. Structural characters of Tachinidae. 10, wing of a species with cell R b 

 open and bend of vein M angulate. 11, apical part of wing of a species with cell R- 

 closed and bend of vein M rounded. 12, head profile in a typical Prosenine with facial 

 carina. 13, head profile in a typical Carceliine, showing relative widths of gena and 

 profrons. 14, head profile showing important landmark axes. 15, showing precoxal 

 row of hairs on sternopleuron in genus Actia. 16 & 17, ventral view of second costal 

 sector in (16) forms with the sector bare, and (17) forms with the sector haired. 18 & 

 19, dorsal view of apex of hind tibia in typical forms (18) with an ad preapical seta, 

 and (19) without such seta. 



