216 Annals Entomological Society of America [Vol. XIII, 



EXPLANATION OF PLATES. 



Plate XVIL 



Fig. 1. Anterior view of female head. 



Fig. 2. Anterior view of male head. 



Fig. 3. Lateral view of female head, right side. 



Fig. 4. Lateral view of male head, right side. 



Fig. 5. Face, a facial sclerite which bears the antenna. 



Fig. 6. Antenna, showing joints and sensoria. 



Fig. 7. Posterior view of male head. 



Fig. 8. Antennal arista. 



Plate XVI IL 

 Fig. 9. Dorsal view of thorax of male. 

 Fig. 10. Anterior view of prothorax of male. 

 Fig. IL Halter. 

 Fig. 12. Lateral view of male thorax, right side. 



Plate XIX. 



Fig. 13. Wing of male, right wing. 



Fig. 14. Epaulet, sub-epaulet, and base of the costa, of the right wing. 



Fig. 15. Remigium, of right wing of a male, showing'^chordonotal organs. 



Fig. 16. Left side of male to show squamae. 



Fig. 17. Posterior spiracle of male. 



Fig. 18. Edge of squama. 



Plate XX. 

 (Legs taken from the right side of male.) 

 Fig. 19. Metathoracic coxae of male. A, Dorsal view. B, Anterior view. 

 Fig. 20. Mesothoracic coxae of male. Dorsal view. 



Fig. 21. Pro thoracic coxae of male. A, Dorsal view. B, Ant^ior view. 

 Fig. 22. Anterior view metathoracic trochanter. 

 Fig. 23. Mesothoracic trochanter. A, Anterior view. B, Dorsal. 

 Fig. 24. Prothoracic trochanter. A, Posterior view. B, Ventral. 

 Fig. 25. Metathoracic femur, dorsal view. 

 Fig. 26. Mesothoracic tibia, anterior view. 

 Fig. 27. Mesothoracic femur, dorsal view. 



Fig. 28. Prothoracic femur. A, Posterior view. B, Dorsal view. 

 Fig. 29. Mesothoracic tibia, dorsal. 



Fig. 30. Anterior view of legs in position as described. A, Prothoracic, B, Meso- 

 thoracic. C, Metathoracic. 

 Fig. 31. Prothoracic tibia, posterior view. 



Plate XXI. 



Fig. 32. Second genital segment and genitalia of the male. 



Fig. 33. Genitalia with genital segment and forceps removed. 



Fig. 34. Pulvilli. A, Male. B, Female. 



Fig. 35. Apex of last tarsal joint of male, posterior view. 



Fig. 36. Tarsus. A, Dorsal view of first joint, (outline). B, Posterior view of 

 all tarsal joints. C, Dorsal view of last two tarsal joints. D, Union 

 and articulation between first two tarsal joints. E, Edge of pulvillus 

 showing roughened surface. F, Union and articulation of last two 

 tarsal joints. 



Plate XXII. 

 Fig. 37. Ventral view of male abdomen. 

 Fig. 38. Dorsal view of male abdomen. 



Fig. 39. Section of abdominal wall to show flexibility of segments. 

 Fig. 40. Ventral view of female abdomen. 

 Fig. 41. Dorsal view of female abdomen. 



