32 



Studies in the Hybrid Bistoninae. IV 



(7) Wing parts, PI. I, Fig. 6. Genitalia, Text-fig. 9. 



This is another example that seems almost wholly female. 



The ovipositor, seemingly perfect, possesses on both right and left 

 lobes a distinct pointed uncus fragment. Both of the outer directing 

 rods are placed as usual and so too is the right inner one. The left 

 inner rod, however, is defective and appears to the left as black twisted 

 chitinous structure. 



Fig. 9. 



B = Bursa copulatrix. DD = 1st pair of rods. D'D' = 2nd pair of rods. 



1= Enclosed valve. = 08tium. C/C7'= Fragments of uncus. 



Of the male valves but one can be detected, and that lacks the basal 

 portion. It lies loose in the body cavity and somewhat anteriorl3^ 

 Except that it is fragmentary, it is certainly not misshapen. 



The ostium appears to the left of the main rods and a bursa of sorts- 

 proceeds from it. Whether the rounded dark patch, apparently within 

 it, is the signum, is a moot point. To me it is the pupal tubercle 

 pertaining to the valve which is inside. Had it been the signum, with 



