Explanation of Numbers on Plates. 



333 



Explanation of Numbers on Plates. 



No. 1. testis. No. 



2. calyx. 



3. vesicula seminalis. 



4. vas deferens. 



5. glandula accessoria. 



6. ductus ejaculatcrius. 



7. penis. 



8. oedaeagus. 



9. vesica of penis. 



10. cornuti of penis. 



11. uncus. 



12. abdominal sternite of 



tenth segment = gna- 

 thus of Chapman, often 

 called scaphium. 



13. penis sheath or ringvvall 



of Zander. 



14. valve. 



15. harpe. 



16. cingula or vinculum of 



Pierce. 



17. saccus. 



18. ovary. 



19. common oviduct. 



20. vagina. 



21. spermatheca or recep- 



taculum seminis. 



22. cement gland. 



23. ductus bursae or 



seminis. 



24. bursa copulatrix. 



25. caput bursae. 



26. signum of bursa. 



cervix. 



ostium bursae. 



ovipositor. 



directing-rod of ovi- 

 positor, rod of tenth 

 segment. 



rod of ninth abdominal 

 segment. 

 32. anus. 



27 

 28, 

 29. 

 30. 



;;i 



Explanation of Plates XCIII-CIV. 



PLATE XCIII. 



Gynandromorphous Amorpha populi. 

 Upper figure No. 1. 

 Lower figure No. 2. 



PLATE XCIV. 



Head of Gynandromorphous Amorpha hybridus. x 7. a. 28th 

 segment, b. 16th segment of right antenna, c. 16th and 17th 

 segments of left antenna, x 65. 



