260 CRYPTOCEPHALINARUM BOREALI-AMERICAE DIAGNOSES. 



B. 



56. P. MORosus Hald. Niger, confertim scabro-punctatus ; subtus punctatus, 

 albido sericeus : fronte plana : scutello polito : humeris prominulis, politis : pygidio 

 confertim punctulato. Long, 2 lin. 



? with a shallow ventral fovea, which is absent in the male. The puncturing is 

 dense and uniform, and no portion is arranged in series upon the elytra : the humeri 

 are prominent and scarcely punctate. Southern. 



57. P. CARBONARius Hald. jDej. ,445". Niger, subtus piliferus ; disperse 

 punctulatus ; labro et antennarum basi brunneis : pronoto dense etdistincte punctate, 

 punctis parvis, profundis : scutello vix punctulato : elytris grosse punctatis, externe 

 irregulariter punctato-striatis ; humeris prominulis, laevibus : pectore punctate ; 

 ventre pygidioque punctulatis. Long. 1^ lin. 



The punctures on the head are smaller, and on the elytra larger than those of the 

 pronotum. Of two specimens described, both have the venter sub-foveolate. 

 Southern. 



58. P. TRiNOTATUs iWf/s. Pr. acad. 3,170 :3. orn<z/^co//^>4.D. ,445". Niger, subtus 

 punctulatus, subsericeus : capite dense punctulato, maculis 2 frontali, et 1 inter 

 antennas, aurantiacis vel sanguineis; antennis elongatis, nigris, basi subtus 

 paUidioribus : pronoto confertim punclato ; apice tenuiter, lateribus, lineola apicali, 

 maculisque 2 basalibus, aurantiacis vel sanguineis, marginibus tenuiter nigris: 

 scutello impunctato ; elytris grosse et dense punctatis, lineis elevatis perpaucis 

 externis irregularibus ; humeris prominulis, laevibus: pygidio dense punctulato. 

 Long. 1§ lin. 



9 with the apex of the venter foveolate ; ^ without the fovea. The spot between 

 the antennae is sometimes absent ; and another is sometimes present at the exterior 

 base of the antennae. 



C. 



59. P. suBFASCiATUS Lec. (Crypt.) Ann. Lye. N. Y. 1,173. 11 '20. :494 Mels. Cat. 

 Dej. Cat. ,445". Niger, capite dense punctato; antennis brevioribus, tenuibus, 

 articulis 2-6 dilute rufis : pronoto dense punctato, lateribus anguste sanguineis : 

 elytris punctatis, apice tenuiter, maculisque 2 in medio rufis : ventre pygidioque 

 indistincte punctulatis, albido-sericeis. Long. IJ lin. 



Venter with a fovea, apparently in both sexes. The medial spot upon each 

 elytrum may unite and form a fascia. The punctures are dilated, and somewhat 

 regularly arranged posteriorly, and there are several elevated interstices. 

 Pensylvania. 



