StuijkijlinldcB of the Amazon Valley. 323 



being very fine and scanty. Elytra slightly longer than 

 the thorax, evenly, rather closely, and moderately finely 

 punctured. Hind body quite dull, Avith a long and dis- 

 tinct pubescence ; its punctuation moderately coarse, but 

 indistinct and not dense, the extremity red, the hind 

 margin simply rounded ; the 5th segment on the under- 

 side is impressed near the extremity with a not very dis- 

 tinct transverse line. Legs red. 



The male has a rather deep notch, the anterior part of 

 which is very narrow in the middle of the hind margin of 

 the 7th ventral segment. 



Tapajos ; several specimens. 



6. Plnoplulus modestus, n. sp. Parallelus, piceus, 

 capite thoraceque pernitidis, illo parce punctato ; thorace 

 oblongo, sat crebre subtiliter punctato, linea media, minus 

 discreta, lasvi; elytris sat crebre fortiter punctatis, sub- 

 nitidis; antennis pedibusque rufis. Long. corp. 7^ lin. 



Antennae red, slender and elongate, quite as long as 

 head and thorax ; 3rd joint one and a half times the length 

 of 2nd. Head almost as broad as thorax, very shining, 

 the upper surface with a few coarse punctures, most nume- 

 rous about the hind angles, but nearly wanting in the 

 middle of the vertex. Thorax oblong, longer than broad, 

 quite straight at the sides, shining, rather finely and not 

 densely punctured, the punctures leaving an in-egular 

 space along the middle, and a round space near the fi-ont 

 angles, impunctate. Elytra slightly longer than thorax, 

 rather coarsely and not densely punctured. Hind body 

 not densely punctured, reddish at the extremity. 



Ega ; a single female. 



This species, though closely allied to P. mimus, is abun- 

 dantly distinct by its larger size, more elongate thorax, 

 and the more sparingly punctured front parts of the upper 

 surface ; the extremity of the hind body is simple, as in 

 P. mimus, but I have not ascertained whether the oth 

 segment bears a ti'ansverse line or not. 



7. Pinophilus tenuis, n. sp. Angustulus, parallelus ; 

 capite thoraceque pernitidis, fere impunctatis ; rufescens, 

 capite, elytris, abdomineque obscurioribus, hoc longius 

 pubescente, minus distincte punctato. Long. corp. 4 lin. ; 

 lat. prothoracis vix ultra I lin. 



Mas: abdomine segmento 7" ventrali apice obsolete 

 emarginato. 



Y 2 



