1 4 DESCRIPTIONS OF NEW SPECIES. 



»ISCO»ERUS Lec. 



44. I>. aiMoeniis. Elongato-ovalis, capite thoraceque rufo-piceis, hoc 

 rotundato, latitudine paulo breviore, ad basin utrinque impresso et parce 

 subtiliter punctato, elytris obscure cyaneis nitidissinais, striis profundis, 

 2nda 5ta et 7ina punctis pluribus parvis notatis ; subtus rufo-piceus, 

 antennis pedibusque dilutioribus. Long. -33. 



New Mexico ; Mr. Ulke. A very distinct and beautiful species. 



AIVISODACTYLUS Dej. 



45. A. punctflllatws. Oblongo-ovalis, niger nitidus, thorace sub- 

 quadrato, latitudine breviore antice subangustato, latcribus rotundatis 

 postice subexplanatis, angulis posticis obtusis rotundatis, ad b^sin 

 utrinque subtiliter punctulato et vage foveato, elytris stria 2nda postice 

 puncto impresso, antennis palpisque rufo-piceis, illis articulo lmo dilu- 

 tiore. Long. *43. 



Middle States ; not rare. This species nearly resembles A. ni- 

 gerrimus, but the sides of the thorax are less rounded, and the 

 basal impressions are deeper and more punctulate. The elytra are 

 moderately sinuate near the tip as in A. nigerrimns, and the ter- 

 minal spur of the front tibia? is slightly dilated each side towards 

 the base. 



46. A. flirvus. Oblongo-ovalis, (femina) fere opacus, thorace latitu- 

 dine breviore antrorsum sensim angustato, lateribus rotundatis postice 

 explanatis cum basi dense punctulatis, angulis posticis obtusis rotun- 

 datis, basi utrinque late baud profunde impresso, elytris stria 2nda 

 postice unipunctata, ad apicem vix sinuatis, antennis piceis, articulo 

 primo palpisque rufo-piceis. Long. *48. 



One female from the upper part of Georgia. Resembles in ap- 

 pearance A. carbonarius, but the sides of the thorax are less 

 widely depressed, and the terminal spur of the anterior tibia? is 

 not tricuspid, but only slightly dilated on the sides. The elytra 

 are less sinuate towards the tip than in any of the neighboring 

 species. 



47. £_, harrisii. Oblongo-ovalis, niger subnitidus, thorace latitudine 

 breviore antice subangustato, lateribus rotundatis postice late depressis, 

 cum basi subtiliter punctatis, angulis posticis obtusis rotundatis, basi 

 utrinque vage impresso, elytris stria 2nda postice unipunctata. antennis 

 piceis, articulo primo subtus, palpisque rufo-piceis. Long. *45. 



Middle and Eastern States. This species was sent to me by Dr. 



