ig8 



R. W. CROSSKEY 



St 2 



St 3 



St 4 



St 5 



epandrium 



lobe of St 5 



basiphallus 



20 



epiphallus 



surstylus 



cercus 



21 



distiphallus 



Figs 20-23. Abdomen and <$ genitalia in representative Tachinidae. 20, ventral view 

 of abdomen with numbering of tergites (T) and sternites (St). 21, apical view of a 

 common form of hypopygium, aedeagus and vestiture omitted. 22, '/.-shaped' aedeagus 

 of typical Proseninae. 23, left lateral view of hypopygium in a typical member of the 

 Goniinae, vestiture omitted. 



