GYNANDROMORPHISM IN LEFIDOPTERA. 



249 



Tegumen and uncus absent, and replaced by a pair of rather 

 normal double papillae anales of the female. Moreover, the bursa 

 copulatrix, with its appendix (Fig. 4, b. c. and a. b.} and the lamina 



-v.s. 



Sin. and. 



FIG. 4. Copulatory apparatus of the gynandrous Gonopteryx rhamni L. : tg. 7. 

 and tg. 8., 7th and 8th tergites; p. a., papillae anales; v. d. and v. s., valva dextra and 

 sinistra; pn., penis; pi. 9., pleurite of the Qth segment; o. b., ostium bursae; sin. and., 

 sinus androconialis; sac., sacQis; I. d., lamina dentata; b. c., bursa copulatrix; a. b., 

 appendix bursae; d. b., ductus bursae; v. p., vallum penis. Zeiss, obj. AA, oc. I. 



dentata (I. d.}, are well developed and provided with a ductus 

 bursae which opens in the ostium bursae (o. b.) lying normally, 

 between the 7th and 8th sternites, but immediately on the left of 

 the invagination of the saccus. Below this latter an androconial 

 pouch (Fig. 4, sin. and.) is situated, representing in miniature the 

 much larger structure of this kind in the normal female. 



Thus, in this case we find in the structure of the copulatory 

 apparatus no correspondence with the disposition of the wing 

 pigments. The latter, male and female, are strongly divided and 

 separated by the plane of bilateral symmetry, while the copu- 

 latory appendages are divided rather by a frontal plane, the fe- 

 male papillae lying above, and male penis, saccus and valvae below 

 it. But at the same time the internal reproductive organs, the 

 bursa copulatrix of the female with its appendages and, probably, 

 the ductus ejaculatorius of the male exist side by side, with their 

 openings in normal position. 



