26 DESCRIPTIONS OF NEW SPECIES. 



elytris paulo pallidioribus et fortius punctulatis, punctis hie inde stria- 

 tim digestis, stria suturali ad medium antice obliterata ; anteuuarum 

 clava fusca, scapo baud breviore. Long. "08. 



Northern New York ; Mr. Ulke. The genus Ainphicyllis 

 differs from Liocles and Agathidiuin by the club of the antenna? 

 being composed of four joints. The body is not contractile into 

 a ball. 



CLAIUBUS Fischer. 



53. C. puberullis. Ovatus, convexus, rufo-piceus nitidus, subtiliter 

 sat dense helvo-pubescens, subtiliter punctulatus, subtus piceus, anten- 

 nis pedibusque testaceis. Long. *03. 



Pennsylvania, rare. Our other species, G. gibbulus, is very 

 shining, black and entirely glabrous. 



MICROSTEMIttA Motsch. 



54. M. grossa. Castanea nitida, longe pubescens, thorace ovato con- 

 vexo, latitudine baud breviore, postice paulo angustato, pone medium 

 punctato, ante basin utrinque bifoveato, elytris elongato-ovalibus valde 

 convexis, tborace baud sesqui latioribus, subtiliter parce punctatis. 

 Long. -10. 



Mobile, Alabama ; Col. Motschulsky. The antennas are half 

 as long as the body ; the first joint is one-half longer than the 

 second, which is joined to it at an angle ; the 3d and 4th joints 

 are each equal to the 2d ; the 5th is nearly one-half longer ; the 

 three following are shorter and equal ; the 9th and 10th are each 

 as long as the two preceding, and twice as thick, and the 11th 

 still longer, forming an elongate club ; the femora are considera- 

 bly clubbed. 



The genus Microstemma is easily distinguished by the antennas 

 being geniculate with the first joint not elongated. 



55. M. motsclllllskii. Castanea nitida, longe flavo-pubescens, 

 tborace ovato convexo, latitudine baud breviore, postice paulo angus- 

 tato, ante basin utrinque bifoveato, elytris elongato-ovalibus valde con- 

 vexis, tborace vix sesqui latioribus, subtiliter baud dense punctatis. 

 Long. -07. 



Mobile, Alabama ; Col. Motschulsky. Smaller than the pre- 

 ceding, with the thorax not punctured behind, and the elytra 

 more obviously punctured. 



