of the Amazon Vallty. 249 



Long'. 4 J liu. 



AWied to A. ornati2Jenne (Perroud) from Guadeloupe; 

 but difiering' in the sculpture and apical armature of the 

 elytra, besides the less regular arrangement of vittae on 

 the latter. According to Perroud's description, the 

 elytra are " tres faiblement tronquees a leur extremite/' 

 whereas A. hirsutulum has the apex of each prolonged 

 into an acute tooth, distinct enough, but not spiniform, 

 as in A. surinamum. The pubescence is very coarse 

 and decumbent on the body, but the elytra have besides 

 erect setse springing from the few acute granules on their 

 surface. 



Hah. — Tapaj os . 



Sub-fam. ToRNEUTiN^. 



Large robust insects with exserted and robust man- 

 dibles in the males, and a broad apex to the abdomen 

 in both sexes. 



Genus Coccoderus. 



Buquet, Rev. Zool. 1840, p. 293; Lacord. Gen. viii. 243. 



1. Coccoderus amazonicus, n. sp. 



Elongatus, parallelogrammicus, rufo-testaceus, elytris 

 (basi excepta) pallidis, maculis eburneis utrinque tribus : 

 capite grosse punctate, genis infra oculos lobo sub- 

 hamato productis, mandibulis magnis curvatis intus fortiter 

 dentatis ; thorace grosse rugoso-punctato, tuberculis 

 atris nitidis, duobus dorsalibus, alteris duobus marginali- 

 bus, prope margines anticum et posticum arete constric- 

 to ; elytris glabris nitidis, macula eburnea basali, altera 

 discoidali paulo ante medium, alteraque post medium : 

 antennis omnino inermibus. 



Long. 13| lin. (^ . 



Although a true Coccoderus, this species differs from 

 the definition of the genus given by Lacordaire, in not 

 having the 3-5 joints of the antennas spinose at the apex. 

 It seems to approach nearest C. bisignatus, of Buquet, 

 which, however, has only one ivory-like spot on each 

 elytron. It differs from C. sexmacidatus of the same 

 author, in the coarsely sculptured thorax. 



Hah. — Tapajos ; one example. 



