150 Rs W. CROSSKEY 





epandrium 
(T9) 
37 
cercus 
surstylus 
aedeagus 
36 38 
pregonite 
epandrium 
hypandrium 
surstylus 
distiphallus of aedeagus 
epiphallus 
postgonite 
3? 
Fices 36-39. Male genitalia of Rutiliini. 36, whole hypopygium in profile. 37 & 38, two 
forms of aedeagal distiphallus found in Rutiliini: (37) great majority of forms in which 
apical membranous part (A) is subequal in length to or shorter than basal sclerotized 
part (B), (38) form in subgenus Grapholostylum in which membranous apical part whip- 
like and nearly twice as long as sclerotized basal part. 39, aedeagus and associated struc- 
tures viewed obliquely. All hairing omitted. 
