OF NAT! RAL IHSTOUY. 0.')7 



4. B. (»BLITKRATA. — Elytra witli obnolcti; «rro..Vf.-« ; lateral 

 inurgin rounded. 



Inhabit!; Mexico. 



IJody black, iimnaculate : head slightly punctured; an impre.-;- 

 ^ed line between the antcnnit : thorax wider than long ; lateral 

 edge a slightly elevated line, a little exeurved at the posterior 

 angle, which is eon-setjuently somewhat acute: elytra with obso- 

 lete grooves, minutely punctured; lateral margin rounded and 

 smooth: thighs not obviously punctured. [185] 



JiCugth less than threc-lifths of an inch. 



Resembles the preceding, but differs in the excurvature of the 

 lateral thoracic edge near the posterior angle, and in the grooves 

 of the elytra being obsolete. 



."). ]J. CF.LSA. — liody somewhat elongated ; elytra with traces 

 ui' grooves and punctures. 



Inhabits Mexico. 



Body brownish-black, minutely punctured, somewhat elongated: 

 head with the ijnpresscd line between tlie antenna; obsolete: an- 

 tennae at tip, and palpi jiiceous : thorax rather wider than long; 

 lateral edge a slightly elevated line, not exeurved at the posterior 

 angles; an obsolete, abbreviated, oblique, impre.'<sed lino near 

 the posterior angles; somewhat attenuated behind ; lateral margin 

 rounded. 

 Longth more th;ia throe-fifths of an inch. 



More slender than the maura and obliterata, which have no 

 appearance of an indentation near the posterior angles of the 

 thorax. 



G. B. yEQUALis. — Elytra smooth, simple ; thoracic basal angles 

 rot exeurved. 



Inhabits Mexico. 



Body black, minutely punctured : head with the impre.-^si'd 

 line between the antenna;, obsolete : thorax broader than long, 

 broadest in the middle ; lateral edge a slightly elevated line, not 

 at all exeurved near the posterior angle ; elytra destitute of any 

 appearance of the rudiment of a groove or of striso : rounded on 

 the lateral margin. 



Lenjrth over three-fiflhs of an inch. 

 1835.] 42 



