I* 



jyprth American Coleopterous Insects. 



183 



elevated obtuse lines and indentations, and numerous 

 soiallj elevated dots ; posterior angles acute : elytra with 



r 



many small elevated dots^ and deeply impressed, distant 

 punctures ; several elevated, obtuse, abbreviated lines, of 

 which the largest one is near the middle and extends to 

 the posterior declivity ; on this declivity are three large, 

 elevated tubercles ; an abbreviated Inie extends from the 

 humerus, and a very short basal one is nearest the suture: 

 beneath^ with numerous, small, elevated dots. 



Length three fifths of an inch. 



This occurred in abundance in an elevated situation, 



under old logs. 



Blaps, Fabr. 



% 



1. B. ruida. Elongated; elytra rugose. 



'S- 



Mex 



B 



broad, punctures confluent each side and behind j a trans- 

 verse, sub-basal, indented band, obsolete in the middle ; 

 lateral margin rounded, the marginal, hardly elevated line 

 being so low on the side as not to be visible from above : 

 elytra convex, covered in every part 



^' 



with irregul 



rugosities. 



Length less than one inch. 



2. B. impoUta. Opaque ; thoracic basal angles slightly 



excurved ; elytra simple. 



Inhabits Mexico. 



Body black, nearly opaque, very minutely punctured : 

 head, transverse line between the antennae obsolete: 

 thorax rather wider than long, greatest width a little be- 

 fore the middle; lateral edge a slightly elevated line, 



an 



J' 



