53 (52) West of the Rocky Mountains (continental divide) 54 



East of the Rocky Mountains (continental divide) 55 



54 (53) Elytron dark brown, with at most faint yellowish 



humeral or subapical spots; 1.8-2.5 mm long: 



Dubivaphia brunnesaens 

 Elytron black with humeral and apical light yellow 

 spots, sometimes united to form a vitta; 2.1-2.3 mm 

 long: Dubiraphia giulianii 



55 (53) Black, elytron with humeral and apical rufous or 



testaceous spots, which may be united to form a 

 vitta; 1.7-2.5 mm long, 0.65-0.85 mm wide (Fig. 62): 



Dubiraphia quadrinotata 

 Brownish, elytron with a broad testaceous vitta; 



1.8-2.5 mm long, 0.7-0.85 mm wide: Dubiraphia vittata 



56 (43) Tooth which clasps epipleuron arising from lateral margin 



of fifth abdominal sternite 57 



Tooth which clasps epipleuron arising from apical 

 (posterior) lateral margin of fourth abdominal 

 sternite 76 



Figs 62-63 Dorsal view of adult: 62- Dubiraphia quadrinotata; 

 63- Etsianus texanus. 



57 (56) Elytron at base with a short accessory stria between 

 sutural and second major striae (Fig. 63); testis 



trilobate Etsianus 



Elytron without such an accessory stria, testis 



usually bilobate 



58 

 60 



37 



