482 Coleopterological Notices. 



ing the coxae, the process porreet, extending far behind them, the apex acutely 

 angiilate, loosely received in repose in an excavation of the mesosternnm. 

 Posterior coxae narrowly separated, the process truncate. Base of the pronotum 

 transverse and perfectly straight. Elytra connate, coarctate with the protlio- 

 rax throughout the width. Tarsi very coarsely spinose beneath, the anterior 

 not dilated in the male. 



The form of the body is abbreviated, oval and strongly convex, 

 and the genus seems to be rather isolated, having no decided bond 

 of affinity with any other. It is remarkable in the structure of the 

 terminal joint of the maxillary palpi, the apical cavity of which is 

 filled with a tumid or apparently extensible white membranous 

 mass. The single species is absolutely apterous. 



C. estl'iatus Lee. — Blapstinus est. : Proc. Am. Phil. Soc, XVII, 1878, 

 p. 420. — Broadly oval, very convex, dull and alutaceous, black, not pubescent 

 but each of the fine punctures having an excessively minute erect seta, only 

 distinctly visible under high power. Head transversely trapezoidal, rather 

 convex, finely, somewhat unevenly but generally sparsely punctate ; upper 

 lobe of eye rather small and elongate ; antennae somewhat slender but short, 

 not much longer than the prothorax, the outer joints very slightly wider, 

 joints three to five uniformly and rapidly decreasing in length. Prothorax 

 rather strongly transverse, about four-fifths wider than long, rather strongly 

 narrowed from base to apex, the sides evenly and very feebly arcuate ; apex 

 very feebly emarginate in circular arc ; base transverse ; disk miniitely and 

 not densely punctate, subopaque, with a narrow polished and impunctate 

 basal margin. Scutellum small. Elytra much wider tlian the prothorax and 

 from two and one-half to three times as long ; sides strongly arcuate, continu- 

 ous in curvature with those of the prothorax, apex rather acute ; disk very 

 finely, not densely punctate, with very ill-defined, widely distant rows of 

 simiLar punctures. Abdomen shining, finely but deeply, distinctly and rather 

 densely punctate. Anterior tibiae rather robust, compressed and in the form 

 of an elongate triangle. Posterior tarsi with the fourth joint much shorter 

 than the first three combined. 



Length 3.5-4.7 mm. ; width 2.0-2.8 mm. 



Florida. 



The rows of punctures on the elytra are quite distinct in some 

 specimens, with a tendency to noticeable impression, but in others 

 they are very indistinct. When the i)rothorax is slighth' thrown 

 back the pronotum almost completely covers the scutellum. 



