-28- 



10. Basad at apex of D on B is 

 a small dentate projection; 

 D curves mesad at an angle 



less than 90° to its base. fig. 116 potomus Denning 1947 



No dentate process on B 



basad of apex of D, D 



curves mesad at a 90° 



angle. fig. 117 tarsalis Hagen 1861 



11. Claspers, side view, less 



than 2x as long as wide. -12 



- Claspers, side view, more 

 than 2x as long as wide; 

 measuring the longest axis 

 in relation to the width 



at mid point. -16 



12. Claspers with an apical 

 circular incision. 10th 

 tergite apex tapering to a 



sharp point. fig. 118 weddleae Ross 1947 



- Claspers rounded apically. -13 



13. 10th tergite with rods B 

 and C projecting dorsad. 

 Clasper apex with a dense 

 brush of stout setae on 

 mesal surface, a row of peg- 

 like spines extends from 



mid-ventral margin basad fig. 119 arizonica Denning & 

 on mesal surface. Blickle 1972 



- 10th tergite with one or 



no rods projecting dorsad. -14 



14. Clasper with basal 1/2 

 square shaped, lower margin 

 tapering to a rounded apico- 

 dorsal apex, apex with a 

 brush of long stout setae; 

 mesal surface covered with 

 numerous long setae; a row 

 of heavy spines extends 

 basad from mid-ventral mar- 

 gin, fig* 120 trapoiza Ross 1947 



- Clasper not tapering 



dorsad. -15 



