TACHINIDAE OF AUSTRALIA 197 
mee > ne > F » se Tiole 
basal node of Rais second costal sector R343 petiole 
Ry 
(R445+Myp 

m-cu 

a E Rand ative i bend of vein M 
10 
profrons 

antennal 
axis’ —— 
facial 
carina 
vibrissal 
axis 
epistomal—— 
axis 
epistome 
gena<_ 
12 B 14 

4" 49 
RWC 

Fics 10-19. Structural characters of Tachinidae. 10, wing of a species with cell R; 
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. 
