St'iphijluiuld; of the Amazon Vallejj. 321 



media angusta licvi; elytris crebre fortitcr punctatis; 

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



Mas: femoribus postcrioribus subtus medio dente acuto. 



Fern. : femoribus muticis. 



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

 dibles with an elongate tooth. Head slightly narrower 

 than thorax, shining, the upper surface coarsel}^ but 

 sparingly punctured, except at the hind angles, where the 

 punctuation is dense and rugose ; it has also a 'iiiw 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 Avhcre the punc- 

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

 most distinct towards the front, free from punctures, the 

 sides again more closely punctured especially on the 

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

 rather coarsely and closely pmictured. Hind body closely 

 and rather coarsely pimctured, generally reddish at the 

 extremity; the apex of the upper terminal ])late 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 cmarginate ; the 7th segment 

 has a rather broad and deep emargination at the extremity, 

 in front of which it is flattened or depressed. 



Santai-cm and Ega. The specimen from Ega has the 

 extremity of the hind body concolorous, whereas it is 

 reddish in the specimens from Tapajos. 



4. Pmophilus cBqualis, n. sp. Nigricans, antennis, 

 palpis, pedibusque feiTugineis, capite thoraceque nitidis, 

 illo vertice dense punctato ; thorace oblongo, crebre minus 

 fortiter prmctato, linea media angusta la3vi; elytris opacis, 

 dense subtiliter rugoso-punctatis ; abdomine crebrius minus 

 fortiter punctato, apice unispiuoso. Long. corp. 7 5 lin. 



Mas: abdomine segment© 7° ventrali medio profunde 

 emarginato. 



Antennie obscure red, slender, as long as head and 



TRANS. ENT. SOC. 187G. — PART II. (.JUNE.) Y 



