Sttn>hi/Unidce of the Amazon Vulleif. 321 



media angusta lasvi ; elytris crebre fortiter punctatis ; 

 abdominis apice breviter bispiuoso. Long. corp. 8 lin. 



Mas : femoribus posterioribus subtus medio dente acuto. 



Fem. : femoribus muticis. 



Antennas nearly as long as head and thorax, red. Man- 

 dibles with an elongate tooth. Head slightly narrower 

 than thorax, shining, the upper surface coarsely but 

 sparingly punctured, except at the hind angles, where the 

 punctuation is dense and rugose ; it has also a few very 

 fine punctures. Thorax as broad as the elytra, elongate 

 and parallel, longer than broad, quite straight at the 

 sides, moderately coarsely punctured, shining, the punc- 

 tures irregularly distributed, leaving a narrow space along 

 the middle smooth ; outside this a space where the punc- 

 tures are crowded together, then again an ill-defined space, 

 most distinct towards the front, free from punctvu-es, the 

 sides again more closely punctured especially on the 

 hinder part. Elytra oblong, quite as long as the thorax, 

 rather coarsely and closely punctured. Hind body closely 

 and rather coarsely punctured, generally reddish at the 

 extremity; the apex of the upper terminal plate is not 

 truncate, but a little rounded or produced in the middle, 

 with a short spine on each side. Legs clear red. 



In the male the trochanters of the hind legs are acu- 

 minate at the extremity, and the thighs are armed in the 

 middle beneath with a sharp tooth; the 6th ventral seg- 

 ment is depressed in the middle towards the extremity, 

 the hind margin narrowly emarginate ; the 7th segment 

 has a rather broad and deep emargination at the extremity, 

 in front of which it is flattened or depressed. 



Santarem and Ega. The specimen from Ega has the 

 extremity of the hind body concolorous, whereas it is 

 reddish in the specimens from Tapajos. 



4. Pinophilus aqualis, n. sp. Nigricans, antennis, 

 palpis, pedibusque ferrugineis, capite thoraceque nitidis, 

 illo vertice dense punctato ; thorace oblongo, crebre minus 

 fortiter punctato, linea media angusta lasvi; elytris opacis, 

 dense subtiliter rugoso-punctatis ; abdomine crebrius minus 

 fortiter punctato, apice unispinoso. Long. corp. 7g lin. 



Mas: abdomine segmento 7° ventrali medio profunde 

 emarginato. 



Antennte obscure red, slender, as long as head and 



TRANS. ENT. SOC. 1876. — PART II. (jUNE.) Y 



