E. A. COCKAYNK 



10:5 



Right side a complete uncus and scaphiuiii, two valves with sacculi, 

 penis and ringwall. Left side half ovipositor and rod, ostium hursae, 

 bursa, and rod of 9th segment. 



(B) 



Diagrtim /. Halved gynandroraorph, AmorpJia populi (1915). Eight side <? , left side ? . 

 All internal organs perfectly halved. External organs halved. 



(A) 1, Ovipositor; '2, rod of ovipositor; 3, ostium bursae; 4, bursa copulatrix; 5, rod of 

 ninth segment; 0, uncus; 7, scaphium ; 8, valve; 9, sacculus; 10 penis; 11, vesica; 

 12, ringwall. 



(B) 1, Ovary; 2, oviduct; 3, cement gland; 4, ductus seminis (bursae); .5, bursa copula- 

 trix; 0, caput bursae : 7, testis; 8, vas deferens; 9, vesicula seminalis; 10, glandula 

 accessoria; 11, ductus ejaculatorius; 12, penis. 



(7) (Diagi'am g.) ? Imperfectly halved, but completely pink. Head 

 perfectly halved. 



L. c/,R. ?. 



Thorax .smaller on right side (?). 



Wings equal in size and shape and like those of male, though some 

 females have wings of this shape. 



Abdomen fuller on right side. 



Internally there was a testis, yellow in colour, on the left, with four 

 follicles full of spermatozoa, lying against the lower part of the ovarian 

 follicles. The testis had its vas deferens, vesicula seminalis, glandula 

 accessoria, and ductus ejaculatorius. There was a second glandula 

 accessoria, vas deferens, and vesicula seminalis, the vas being attached 

 to the upper end of the common nviduct. 



