DESCRIPTIONS OF NEW SPECIES. 



170. P. opacus. Niger, subopacus, capite thoraceque nitidis, illo 

 parce grosse puuctato, et punctulato, hoc fortiter crebre punctate, elytris 

 profunde dense punctatis, abdomine subtilius punctate, antennis palpis 

 pedibusque flavo-testaceis. Long. -32 -37. 



Georgia. More slender than the preceding, being of the same 

 form as P. parcus. 



P ALAMIM S ER. 



171. P. pallipes. Nigro-piceus nitidus, capite fortiter hand dense 

 punctato, thorace obovato, latitudine baud breviore, parce grosse punc- 

 tate, elytris thorace latioribus et sesqui longioribus, piceo-testaceis for- 

 titer punctatis, abdomine bifariam (sicut in speciebus alteris) reticulato, 

 antennis palpis pedibusque pallide testaceis. Long. '20. 



Atlanta, Georgia. A specimen kindly given me by Col. Mot- 

 schulsky. Larger in size and different in color from our other 

 species. 



172. P. lividus. Flavo-testaceus, nitidus, capite thoraceque punctis 

 perpaucis notatis, hoc obovato, latitudine hand breviore, elytris thorace 

 haud latioribus et paulo longioribus parce fortiter punctatis, abdomine 

 rufo-piceo, reticulato. Long. '15. 



One specimen found on leaves of Salix, at Fort Yuma, Cali- 

 fornia. Similar in appearance to P. testaceus, but the thorax is 

 not transverse and has a much more sparse punctuation, and the 

 elytra are shorter. 



173. P. larval is. Testaceus nitidus, capite thoraceque punctis pau- 

 cis grossis sparsis notatis, hoc latitudine haud breviore obovato, elytris 

 thorace nee latioribus nee longioribus, grosse haud dense punctatis, 

 abdomine piceo, fortiter reticulato. Long. -13. 



Long Island, near New York, under moss. Differs from all 

 the preceding species by the shorter and more coarsely punctured 

 elytra. 



DIANOUS CDKTIS. 



174. D. chalytoeilS. Nigro-coaruleus nitidulus, subtiliter albo-pubes- 

 cens, thorace subtilius punctato, elytris macula rotundata rubra utrinque 

 ornatis. Long. -19. 



Marquette, Lake Superior, on the shore of the lake, under 

 pieces of wood, in July. This species agrees precisely with 

 Erichson's description of the European D. ccerulescens, but on 



