422 Coleopterological Notices. 



Posterior angles of the prothorax somewhat prominent posteriorly ; size 

 larger ; strial punctures coarser, especially toward the sides ; wings 



narrow and scarcely two-thirds as long as the elytra 21 mcestus 



Posterior angles not at all prominent, the base transverse and the sinuations 

 feebler ; strial punctures finer, not much coarser laterally ; form narrower, 

 more parallel and more depressed ; wings broad and fully four-fifths as 



long as the elytra 22 gregalis 



Elytral intervals rather coarsely and more densely punctate, the strial punc- 

 tures finer and very closely placed, the strife scarcely visibly impressed ; 



wings but slightly shorter than the elytra 23 SUbstriatllS 



15. — Strial punctures very widely separated, the stria 1 scarcely visibly im- 

 pressed ; form narrow and parallel 24 lepirius 



Strial punctures approximate ; form more robust. 



Lustre dull and alutaceous, the strial punctures more perforate and abrupt, 

 forming very regular, even series, the punctures of the intervals rather 



denser 25 aeqiialis 



Lustre strongly shining. 



Size large, not less than G mm. at least in the female ; elytral stria ex- 

 tremely fine and feebly impressed 26 t iiimIm i- 



Size smaller always less than 6 mm. 



Wings wide, very small, shorter than the prothorax ; elytral strife dis- 

 tinctly impressed 27 pillveruleiltllS 



Wings very slender, at least as long as the prothorax ; elytral striae 



almost unimpressed. 



Wings with the lower margin strongly sinuate near the apex ; size 



larger; form more convex and subcylindrical ....28 para llelllS 



Wings not sinuate near the apex ; size smaller ; form distinctly more 



depressed 29 inquisitus 



16. — Third antennal joint shorter than the next two combined, subcylindrical 



or very feebly obconical 17 



Third antennal joint much longer than the next two together; elytra with 

 coarse, deeply excavated, coarsely punctate grooves ; head dilated and 

 somewhat prominent before the eyes ; pubescence in the form of short, 



robust, suberect scales 22 



I 1 ?. — Pubescence heterogeneous, consisting of smaller and darker, and longer 



and paler hairs, confusedly intermingled 18 



Pubescence homogeneous 19 



IS. — Strongly convex, brown ; punctures of elytral strife small, rather dis- 

 tant, feeble and scarcely distinguishable from those of the intervals. 



30 ami pi I is 

 Strongly depressed, brown ; punctures of the elytral strife distinct. 



31 intermix* us 



19. — Color dark castaneous to pale reddish-brown 20 



Color black 21 



20. — Pubescence darker, piceo-fulvous, inconspicuous ; form broad, oblong ; 

 prothorax very short and transverse'; eyes small 32 brevicollis 



