26 DESCRIPTIONS OF NEW SPECIES. 



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

 tim digestis, stria suturali ad medium antice obliterata ; antennarum 

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



Northern New York ; Mr. Ulke. The genus Amphicyllis 

 differs from Liodes and Agathidium by the club of the antennae 

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

 a ball. 



CLAMBUS FISCHER. 



83. C. pllberulus. Ovatus, convexus, rufo-piceus nitidns, subtiliter 

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

 nis pedibusque testaceis. Long. '03. 



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

 shining, black and entirely glabrous. 



M1CROSTEMMA. MOTSCH. 



84. M. Jfrossa. Castanea nitida, longe pubescens, thorace ovato con- 

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

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

 convexis, thorace haud sesqui latioribus, subtiliter parce punctatis. 

 Long. -10. 



Mobile, Alabama ; Col. Motschulsky. The antennae 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 llth 

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

 bly clubbed. 



The genus Microstemma is easily distinguished by the antennae 

 being geniculate with the first joint not elongated. 



85. M. motschulskli. Castanea nitida, longe flavo-pubescens, 

 thorace ovato convexo, latitudine haud breviore, postice paulo angus- 

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

 vexis, thorace vix sesqui latioribus, subtiliter haud 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. 



