334 Mr. D. Sliffi)'.<* Contributions to the 



in the female there is a small but very sharply defined 

 notch in the middle of the extremity of the ventral phxte of 

 the 7th segment ; the plate of the 8th segment is rather 

 broad, its extremity emarginate so as to be acuminate on 

 each side. 



Tapajos; four specimens, one $ , three $. 



Closely allied to F. dehilis, but narrower and paler, with 

 the thorax more coarsely punctured and the sexual cha- 

 racters different in both sexes. 



22. Pinopldlus affinis, n. sp. Nigricans, nitidus, an- 

 tennis, ]ialpis, pedibusque flavis ; thorace quadrato, basin 

 versus leviter angustato, fortiter punctato ; elytris crebre 

 profunde punctatis. J^ong. corp. 3^ lin. 



Mas latet. 



Antenufc yellow, short; 3rd joint rather shorter than 

 2nd. Head black, with the mandil>les and edge of the 

 clypeus reddish, punctured as in P. debilis, but with the 

 fine sparing punctures less distinct. Thorax about as 

 long as broad, slightly narrowed behind, pitchy black, 

 shining, coarsely punctured, the punctures wanting on a 

 small space near the front angles ; in the middle, in front 

 of the base, slightly elevated, the punctures leaving this 

 part free. Elytra about one-third longer than the thorax, 

 shining, blackish, Avith the hind margin pitchy red, deeply 

 and rather coarsely and closely punctured. Hind body 

 blackish, Avith the margins of the segments pitchy, rather 

 closely and finely punctured. Legs pale yellow. 



The female has the extremity of the ventral plate of the 

 7th segment simple, that of the 8th formed as in P. minor. 



St. Paulo ; a single specimen. 



Though very closely allied to P. debilis, I have no doubt 

 this is a distinct species; the thorax is more coarsely punc- 

 tured, and slightly narrowed behind ; the last joint of the 

 maxillary palpi a little shorter, the legs a little longer ; 

 the male would probably offer good distinctive characters. 



23. Pinopliilus egens,r\. sp. Rufo-castaneus, nitidulus, 

 al)domine segmentis duobus ultimis dorso infuscatis, an- 

 tennis geniculatis, palpis pedibusque albidis ; thorace 

 biseriatim punctato ; elytris fortiter punctatis. Long. 

 Corp. 3 5 lin. 



Mas : tibiis anterioribus mucronatis, abdomine segmento 

 7° ventrali subproducto, medio obtuso. 



