CRYPTOCEPHALINARUM BOREALI-AMERICAE DIAGNOSES. 257 



minutissime scabro, basi utrinque emarginato, lateribus rufis ; scutello triangular!, 

 laevi ; elytris seriatim punctatis, punctis minutis : pygidio confertim punctalo. Long. 

 1 lin. 



Capite thoraceque obscure rufis. 

 Head rufous, above brassy ; mandibles black, prothorax laterally and beneath, with 

 the feet, pale rufous; pectus and venter shining black; pygidium with numerous 

 dilated, but not deeply impressed punctures. Apex of tlie veater with a deep fovea. 

 Middle and Southern States. 



36. C. LEVIS Hald. Violaceo-niger, nitidus : ore antennisque pallide rufis : pronoto 

 laevigato, basi utrinque emarginato, scutello triangulari : elytris seriatim punctatis, 

 punctis minutis. Long. | lin. 



Characterized from a single example of which the feet are wanting. Southern. 



G—a. 



37. C. HEPATicus Mels. Pr. acad. 3,171. Ferrugineus, confertim irregulariter 

 punctatus : oculis nigris ; antennis brevibus, flavis, apice incrassato, fusco ; scutello 

 rufo-piceo : elytris grosse punctatis marginibus flavis, impunctatis : pectore 

 abdomineque rufis, punctis piliferis, ano pedibusque flavis : pygidio flavo, supra rufo, 

 punctis piliferis. Long. 1 lin. 



Characterized from a single individual from fort Laramie near the Rocky 

 Mountains. It does not quite agree with Dr. Melsheimer's description of an example 

 from Pensylvania, but some variation of character must be allowed in this genus. 



38. C. TRiDENS Mels. 3,172 :8. Niger, supra flavus, obscure rufo variegatus, 

 punctis impressis decoloratis : capite flavo ; vcrtice, macula frontali, et punctis 

 impressis nigro-rufis ; labro, palpis antennisque rufis ; pronoto apice, lateribus, lineola 

 dorsali apicali, et 2 basalibus flavis : elytris irregulariter seriatim punctatis : pygidio, 

 abdominis marginibusque flavo-variegatis : pedibus flavis. Long. 1| lin. 



The feet vary to testaceous, and the femora are sometimes maculate with brownish 

 rufous. Pensylvania and Lake Superior. 



39. C. PUNCTATUS Hald. 4-Dej. ,445" (Pachybrachis). Nigricans, supra (capite 

 incluso) flavus, brunneo variegatus, punctis impressis brunneis : antennis fuscis, 

 articulorum basi flavescente : pronoto basi tenuiter nigro ; scutello nigro ; pygidio 

 punctulato, apice flavo ; subtus punctulis piliferis ; femoribus flavo-annulatis. Long. 

 1 lin. 



The elytra vary in the depth of shading ; the lighter varieties have a dark humeral 

 spot, and a common sutural one posteriorly ; the scutellar region is flavous, and the 

 feet vary to flavous, with very feint traces of brown. Pensylvania in June. 

 Southern. 



