BY ARTHUR M. LEA. 493 



Very densely clothed with scales. Prothora.K with tiaces 

 of tubercles only at sides, no sign of median carina. 

 Elytra subparallel, b.ise feebly rounded, shoulders 

 feebly triangularly produced forward and not at all 

 outward; second interstice not fasciculate at base, 

 but the scales there slightly darker; sutural thick- 

 ening almost obsolete lutulentus, n.sp. 



c. Differs fr"om division h. principally on account of the scales 

 being more uniformly black and dingy (though specimens of 

 communis are occasionally feebly multimaculate at sides and apex 

 of elytra), and sparser, allowing the punctures to be more clearly 

 seen. The funicle is also more elongate. 



Prothorax sul)i|uadrate, not depressed along the middle 

 (this is its strongest character), median carina shin- 

 ing, continuous almost to base and apex ; median 

 tubercles almost obsolete. Elytra cylindrical, sub- 

 tuberculate on eacli side of summit of declivity; 

 suture very feebly thickened, lateral punctures very 

 distinct. A fairly distinct species.. jtarallelus, n.sp. 



Prothorax depressed along the middle, carina very 

 feeble and extending for but a short distance. Elytra 

 less cylindrical than in the preceding ; suture 

 thickened from a little before summit of declivity, 

 the thickening continuous almost to apex communis, n.sp. 



Muzzle slightly concave. Prothorax with median carina 

 feeble but distinctly raised, median more distinct 

 than lateral tubercles; distinctly punctate. Elytra 

 at base with a feeble ridge extending almost fro.n 

 suture to .3rd interstice; a small shining granule in 

 front oi each puncture; sutural thickening distinct, carirosfris, n.sp. 

 The most distinct species of the group. 



PoROPTERUs ONiscus, Pasc; Mast. Cat. 8p. No. 5434. 



Scales as on the following but paler and denser, apex of prothorax 

 and tubercles paler and fasciculate, elytral fascicles a little more 

 distinct, elongate scales coarser, shorter, and paler; the ciliation 

 also is a little more noticeable. 



Convex, tubercles very small. Head and rostrum without 

 visible punctures; ocular fovea concealed; eyes small, elongate, 



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