-38- 



9. 8th segment with apico- 

 lateral part tapering to a 

 long, slender, quadrate 

 process, bearing a set of 

 three flat leaflets. Aedea- 

 gus: with apex divided into 

 three sclerotized projec- 

 tions, one short and two 

 long. fig- 161 setosa Denning 1947 



- Aedeagus with apex not so 



divided -10 



10. 8th segment produced into 

 an apico-lateral triangular 

 lobe, heavily setose, 

 deeply incised dorsally; 

 dorsad and mesad to this 

 lobe appears a long attenu- 

 ated process directed 

 slightly ventrad. Aedeagus; 

 with two cylindrical apical 

 lobes, one with three setae 

 at apex, the other with one 



seta. fig* 162 obtatus Denning 1947 



8th segment with an apico- 

 lateral dark spine, or a 

 ventro-lateral heavily 

 sclerotized process. -11 



11. 8th segment with a heavy 

 spine or spines at apico- 

 lateral margin. -12 



8th segment with a ventral 

 lateral sclerotized process 

 on margin. 



-13 



12. 8th segment with a single 



heavy spine on apico- fig. 163 rivicola Blickle & 

 lateral margin. Morse 1954 



- 8th segment with four 

 spines on apico-lateral 

 margin. Clasper projecting 

 and upturned at apex. fig. 164 coercens Morton 1905 



