Stiq)]njlini(lce of the Amazon Valley. 333 



elevated. Elytra slightly longer tlian the thorax, deeply, 

 rather coarsely, not densely punctured, the interstices 

 shining. Hind body parallel, the margins of the segments 

 slightly paler, clothed with a fine, rather dense pubescence, 

 rather closely and finely punctured. Legs pale yellow ; 

 anterior tarsi very broad. 



In the male the ventral plate of the 7th segment is pro- 

 duced, its extremity narrow, the apical portion is pale, 

 smooth and shining ; the ventral plate of the 8th segment 

 forms part of the intromittent organ, and is very deeply 

 grooved, its extremity without appendages. 



Tapajos ; several specimens. 



21. Pinophilus minor, n. sp. Angustulus, rufescens, 

 nitidulus, antennis, palpis, pedibusque pallidis ; thorace 

 oblongo, basin versus leviter angustato, fortiter sat crebre 

 punctato ; elytris fortiter profundeque punctatis. Long, 

 corp. 3 lin. 



Mas : abdomine segmento 7° ventrali product©, apice 

 obsolete emarginato. 



Fem. : abdomine segmento 7° ventrali apice medio in- 

 cisura parva. 



Antennfe yelloAV, short; 3rd joint rather shorter than 

 2nd. Palpi pale yellow ; last joint elongate and slender. 

 Head shining, reddish, paler towards the front, with two 

 punctures in the middle in front ; behind these with four or 

 five on each side, Avith two or three along the inner mai'gin 

 of the eyes, and a few at the extreme vertex, elsewhere 

 quite smooth and shining. Thorax scarcely longer than 

 broad, straight at the sides but a little narrowed behind, 

 obscurely reddish, very shining, coarsely but not densely 

 punctured, the punctures wanting towards the front 

 angles ; a shining slightly elevated longitudinal space in 

 front of the base in the middle. Elytra a little longer than 

 the thorax, reddish, rather darker at the base, deeply and 

 coarsely punctured, the interstices shining. Hind body 

 slender, the basal segments opaque in front and shining 

 at the hind edge ; the apical segments sparingly punctured 

 and rather shining. Legs almost white. 



In the male the venti-al plate of the 7 th segment is pro- 

 duced, the apex of the produced part moderately broad 

 and slightly emarginate ; the plate of the 8th segment 

 forms part of the intromittent organ, its extremity forms 

 a sharp spine slightly curved upwards. 



