DESCRIPTIONS OF NEW SPECIES. 103 



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

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

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

 the thorax is very different. 



359. P. confertus. Elongatus, piceus fere opacus, pubis pallidis 

 alterisque obscuris longioribus intermixtis vestitus, capite thoraceque 

 dense granulatis, hoc latitudine paulo longiore, postice subangustato, 

 antice transversim impresso, dein canaliculate, elytris confertim fortiter 

 punctatis. Long. '42. 



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

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

 strongly and densely punctured elytra. 



LYCTUS FABE. 



360. I OpaculllS. Nigro-piceus, aureo-pubescens, capite thoraceque 

 opacis, confertiua punctulatis, hoc latitudine longiore, lateribus parallelia 

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

 canaliculate ; 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 antice 

 impresso, thoraceque opacis, confertim punctulatis, hoc latitudine paulo 

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

 ticis rectis, disco longitudinaliter excavato ; elytris coufertim seriatim 

 punctatis e't pilosis ; coxis anticis approximatis. Long. -16. 



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

 elytra are moderately fine, and arranged in double rows there 

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

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



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



% 



362. r,. planicollis. Nigro-piceus, pubescens, capite punctato 

 antice impresso, thorace quadrate postice parum angustato, angulis 

 anticis rotundatis, posticis rectis, lateribus subtiliter serratis, disco con- 

 fertim minus subtiliter punctato, longitudinaliter impresso, elytris sub- 

 seriatim punctulatis, et pilosis ; coxis anticis minus approximatis. 

 Long. '14 -25. 



LEG. Proc. Acad. Nat. Sc. Phila. 1858, T4. 



