332 ^Ir. D. Sharp's Contributions to the 



slij>;litly ronndoil at tlio sules and a little narrowed beliind, 

 red suffused with black, the base being' more distinctly red 

 than the other parts ; coarsely irregularly and not densely 

 punctured, the pinictures lea^'ing a space near the front 

 angles free ; in the middle in front of the base the surface 

 is indistinctly elevated, this jiart also being free from 

 punctm'es. Elytra one and a third times the length of the 

 thorax, shining red, rather coarsely and sparingly pimc- 

 tured. Hind body red, the two apical segments suffused 

 with black, rather sparingly punctured. Legs pale yellow, 

 •with the coxje red. 



In the male the ventral ])late of the 7 th segment is much 

 produced and narrow at the extremity, the apical portion 

 quite impnnctate and shining; the ventral plate of the 8th 

 segment forms part of the intromittent organ ; it is elongate 

 and narrow, and furnished at the extremity with two very 

 long processes, which are quite half the length of the rest 

 of the plate. 



Tapajos ; a single male. 



This species bears a very great resemblance to P. bicolor, 

 but may be distinguished by the colour of the thorax and 

 hind body ; it is remarkable that, though from the external 

 characters the two insects might almost be supposed con- 

 specific, yet the structm'e of the intromittent organ of the 

 male is extremely different. 



20. Pinophilus dehilis, n. sp. Subdepressus, piceus, 

 capite thoraceque dilutioribus ; nitidus, antennis, palj)is, 

 pedibusque pallide flavis ; thoraceque quadrato, crebre ibr- 

 titer ])unctato ; elytris crebre profunde punctatis. Long. 

 Corp. 3 1 — 3 J lin. 



]\Ias: abdomine segmento 7° ventrali medio producto, 

 apice angusto, rotundato-acuminato. 



Antenna; yellow; 3rd joint shorter than 2nd. Palpi 

 pale yellow. Head ])it('hy red, shining, with two ])unc- 

 tures in the middle behind the labruni ; l)ehind these four 

 or five on each side in an irregular longitudinal row, and 

 ■with some others close to the inner margin of the eye and 

 the vertex, the smooth parts with a few distant extremely 

 fine pimctures. Thorax about as long as l)road, straight 

 at the sides and not narrowed behind, shining, coarsely 

 ])unetured, with a space near the front angles free : with no 

 distinct impunctate longitudinal line along the middle, but 

 with the part in front of the base in the middle slightly 



