DESCRIPTIONS OF NEW SPECIES. LOS 



One specimen, from Lower California, in the collection of Mr. 

 Ulke. The punctures of the elytra are wit much as in the pre- 

 ceding species, but the pubescence is short, ami the sculpture of 



the thorax is very different. 



359. P. coiifertus. Elongatus, piceus fere opacus, pubis pallidia 

 alterisque obsenris longioribus intermixtis vestitus, capita tboraceque 

 dense granulatis, hoc latitudine paulo longiore, postice Bubangusl 

 antice transversini impresso, dein canaliculato, elytris coufertiui fortiter 

 punctatis. Long. -42. 



Oue specimen, from California, in the collection of Mr. dike. 



Very different from all the other species known to me by the 

 strongly and densely punctured elytra. 



LYCTVS Fabr. 



360. L.. opacillllS. Nigro-piceus, aureo-pubescens, capite tboraceque 

 opacis, confertim punctulatis, hoc latitudine longiore, lateribus parallelis 

 baud serratis, angulis anticis rotundatis, posticis rectis, disco subtilius 

 canaliculato ; elytris subopacis, fortius seriatim punctatis, coxis anticis 

 approximatis. Long. *15. 



One specimen; Pennsylvania. Quite distinct by the characters 

 above given. The punctures of the elytra are large, and form 

 regular rows for two-thirds the width. 



361. L.. cavicollis. Nigro-piceus, aureo-pubescens, capite antioe 

 irapresso, tboraceque opacis, confertim punctulatis, hoc latitudine paulo 

 longiore, lateribus parallelis serrulatis, angulis anticis rotundatis, pos- 

 ticis rectis, disco longitudinaliter excavato : elytris confertim seriatim 

 punctatis et pilosis ; coxis anticis approximatis. Long. -lti. 



One specimen ; San Diego, California. The punctures of the 

 elytra are moderately fine, and arranged in doable rows — there 

 being a row of hairs between each double row of punctures. In 

 this, as in the preceding species, the anterior comb are distinctly 

 separated, while in L. striatus Mels. they are almost contiguous. 



362. L. planicOlliS. Nigro-piceus. pubescens, capita pui 

 antice impresso, tborace quadrato postice parum angustato, angulis 

 anticis rotundatis, posticis rectis. lateribus Bubtiliter serratis, di- . 

 fertim minus subtiliter punctato, longitudinaliter impresso, elytris Bub- 

 seriatim punctulatis, et pilosis; coxis antiois minus approxin 

 Long. -14—25. 



Lec. Proc. Acad. Nat. Sc. Phila. 1858, 74. 



