BY THOMAS G. SLOANE. 



415 



bb. Third interstice of elytra impunetate CMceniniduus. 



II. Abbreviated stria of elytra wanting, or on base of second 

 interstice. 

 B. Third interstice of elytra punctate. 



d. Elytra with second and third interstices very narrow and 



placed in a deep furrow between first and third, and 



third and fifth, interstices respectively Notolestus. 



del. None of the elytral interstices abnormally nai-row, or 

 placed in a furrow between larger interstices. 



e. Ventral segments not transversely sulcate. 



/. Apterous, elytra with humeral angles dentate — Zoedtra. 

 ff. Winged, elytra with humeral angles rounded Loxandrus. 

 ee. Ventral segments transversely sulcate. 

 g. Punctures of third interstice of elytra all situated along 



course of third stria Siniodontua. 



yy. Punctures of third interstice of elytra (excepting one on 



basal third, if present, near third stria) situated near 



course of second stria. 

 A. Third interstice of elytra 3-punctate (the puncture on basal 



third situated near third stria) Prusojioginus. 



hh. Third interstice of elytra 2-punctate (without a puncture 



on basal third) ; mesosternal episterna elongate 



Hunnochilus. 



hhh. Third interstice of elytra unipunctate on posterior third ; 

 mesosternal episterna short Setallmorphus. 



BB. Third interstice of elytra impunctate. 



i. Ventral segments not transversely sulcate (labrum 



truncate). 

 ;'. Prosternal episterna longitudinally striolate, striae of 



el3''tra simple Rhj/tistermis. 



jj. Prosternal episterna smooth ; stri;i3 of elytra punctate (size 



small) Pediomorphus. 



