4G8 Coleopterological Notices. 



are described by Champion as affecting some of the Central Ameri- 

 can species of Blapstinus, such as tibialis and grandis; I have not 

 observed this character in any of our species however. 



The several groups and their component species may be readily 

 distinguished by the following table: — 



Basal angles of the protliorax obtuse, not distinctly prominent posteriorly; 

 elytral punctures never asperate. 



Anterior angles of the prothorax obtuse, not prominent I 



Elytra not deeply sulfate. 



Surface shining ; elytra but slightly wider than the protliorax ; elytral 

 striae very feebly impressed, the intervals flat ; third antennal joint 

 shorter than the next two combined. 

 Humeral angles dentiform and feebly everted. 



Form slender, parallel parallelllS 



Form more robust and convex. 



Bicolored ; pronotum very minutely and sparsely punctate toward 



the middle SeriatllS 



Unicolorous, much larger ; pronotum more coarsely and mucli 

 more densely punctured toward the middle. 



giiaclalupeiisig 



Humeral angles broadly rounded Uliifoi'lllis 



Surface dull ; elytra very much wider than the prothorax, elliptical ; 

 striae distinctly impressed ; intervals feebly convex ; third antennal 



joint fully as long as the next two combined opaciIS 



Elytra deeply sulcate. 



Elytra at base narrower than the base of the prothorax ; intervals 



equal in elevation Slllcatlis 



Elytral base equal in width to tliat of the prothorax ; altcniati' inter- 

 vals much wider and very much more elevated altei'IiattlS 



Anterior angles of the prothorax acute and anteriorly prominent ; elytral 



punctures very minute II 



Surface smooth although very dull and alutaceous ; elytra witli but faint 



traces of punctured striffi ...^agates 



Basal angles of the prothorax acute and distinctly produced posteriorly ; 



punctures of the elytral intervals strongly asperate Ill 



Slender ; elytral intervals rather strongly convex ; head about tliree -fourtlis 



as wide as the prothorax graillllatllS 



Eobust and more depressed ; intervals very feebly convex ; head scarcely 

 two-thirds as wide as the prothorax crassipes 



C". paiallellis Lee. — Ann. Lye. N. Y., V, p. 146. — Rather slender, 

 parallel, convex, black ; antennfe and legs dark rufo-testaceous ; head and 

 jironotnm often slightly piceous ; lustre and vestiture nearly as in seriatus. 

 Uidd transverse, finely, ratlx^r deei)ly and densely punctate; epistoma very 

 feebly sinuate in the middle of tlie very wide apex ; upper lobe of eye quite 



