-39- 



13. 8th segment with a ventro- 

 lateral process that is 

 heavily sclerotized and at- 

 tenuated apically on dorsal 

 margin, ventral margin ser- 

 rate, fig. 165 



- 8th segment produced into 

 apico-ventral ear like 

 lobes, ninth segment with a 

 very long internal ventral 

 projection which is narrow 



and pointed. fig« 166 



14. Ventral margin of 9th seg- 

 ment produced and bifur- 

 cate. 



- Ventral margin of 9th is 

 not produced and bifurcate. 



15. 9th segment bifurcated apex 

 deeply excised; sides 

 parallel. Aedeagus spatu- 

 late. fig. 



florida Denning 1947 



zeronia Ross 1941 



-15 

 -16 



167 



- Aedeagus apex divided into 

 a slender subacute process 

 and shorter robust pro- 

 cess, fig. 



16. Rods of 9th segment pro- 

 nounced , 8th segment 

 excised dorsally. 



- Rods of 9th segment not 

 pronounced and 8th segment 

 not excised dorsally. 



17. Rods of 9th segment extend 

 beyond subgenital plate, 

 apices of rods directed 

 ventrad. 



- Rods of 9th segment do not 

 extend beyond subgenital 

 plate, apices of rods 

 either upcurved or 

 straight. 



18. Aedeagus lobed (4) apical- 

 ly; 8th tergite strongly 

 incised. fig« 



168 



azteca Mosely 1937 



.janella Denning 1948 



-17 



-20 



-18 



169 



- Aedeagus not lobed; 8th 



tergite feebly incised. fig- 172 



-19 



anabola Blickle 1966 



barnstoni Harper 1976 



