-31- 



24. Basal spine twisted beneath 

 10th tergite; two long 

 black tipped spines direc- 

 ted posterior-dorsad from fig. 

 base of 10th tergite. 



- No basal twisted spine be- 

 neath 10th tergite; no more 

 than one spine of 10th ter- 

 gite directed posterior- 

 dorsad. 



129 



okanoganensis Flint 

 1965 



-25 



25. One spine directed pos- 

 terior-dorsad. 



- No spines directed pos- 

 terior-dorsad. 



fig. 130 



argentea Flint & 

 Blickle 1972 



-26 



26. 10th tergite rod E shorter 

 than D. 



10th tergite rod E longer 



than D. B short, heavy, 



bent acutely at tip. fig* 131 



27. 10th tergite: rod E short 

 directed dorsad; rod B di- 

 rected slightly dorsad fig* 133 

 at tip. 



- 10th tergite: rod E not 



directed dorsad; B not bent 

 acutely at tip, nor direc- 

 ted dorsad. 



-27 



logana Ross 1941 



honeyi Blickle & 

 Denning 1977 



-28 



28. Spine beneath 10th tergite 

 base short, straight, acu- 

 minate; rod B longer than 

 E; D decidedly longer than 

 E. 



- Spine beneath 10th tergite 

 stout at its base, curved 

 or bent at apex. 



fig. 132 



lometa Ross 1941 



-29 



29. Spine beneath base of 10th 

 tergite stout basally, ta- 

 pering to a sharp hooked 

 apex; rods B, D, and E ap- 

 proximately of equal 

 length. 



- Spine beneath base of 10th 

 tergite stout basally, 

 curved sharply ventrad, 

 apex acute, C very long, 

 almost equals A. 



fig. 134 



fig. 135 



wojcickyi Blickle 1963 



alsea Denning & 

 Blickle 1972 



