26 r.iuiy, 



the posterior angles are also sharp and project a little outwards, the 

 hind margin being straight. The elytra are rather strongly punctate- 

 striate, even to the lateral margins, where there is no smooth sub- 

 opaque space ; most of the interstices are convex, and the third has a 

 row of fine setiferous punctures. 

 Ega. 



Pachtteles FuscuLirs, sp. n. 



Castaneo-fuscus, suh-nitidiis ; capife angusHore., ocnJis parum promi- 

 nulis ; thornce transverso, cordato, angulis anticis rectis, posticis aciitis, 

 supra transversim strigoso ; eh/trisfortiter punctulato-striatis, interstitiis 

 p^us minusve pu7ictatis, striis apud latera confusis. Long. 3| lin. 



Differs from P. Icevigatus, granulatus, and allies, by the less 

 prominent eyes, in which it exactly resembles P. margimcollis of Chili. 

 The general colour is uniform chestnut-brown, the elytra having no 

 trace of other colour ; but the head is blacker and the legs redder. 

 The anterior angles of the thorax are not in the slightest produced, 

 but they form a very pronounced rectangle. Nearly all the interstices 

 of the elytra have a row of conspicuous punctures. 



Ega ; Amazons. 



Pachtteles Tapajo>'us, sj). n. 



P. Icevigato (Dej.) jyroxitne ajffinis, dijfert solum thorace Jatiori, 

 elytrisque fortius punctulaio-striatis. Long. 2>\ lin. 



Of the same oblong foi*m as P. Icevigatus. Chestnut-red ; head 

 behind blackish, disc of each elytron dusky-brown. Thorax transverse, 

 quadrate-cordate, anterior angles very slightly prominent, sides slightly 

 incurved behind them, thence rotundate-dilated (slightly undulated), 

 behind rather strongly sinuate-angustate, hind angles rectangular ; 

 disc smooth. Elytra with well marked punctulate striae, interstices 

 slightly convex, 3rd and 5th with a few fine setiferous punctures, sides 

 sericeous-opaque. The antenna) are moderately short and thick, as 

 in P. Icevigatus. 



R. Tapajos ; Amazona. 



Pacuyteles Perutiaxus, sp. n. 



P. Icevigato simillimus, at paitlo anguslior et ohscurior, eli/tris 

 dislincte stricito-punct uhttis. Long. 3^ lin. 



The colour of the upper surface is chestnut-brown, with the head 

 behind blacker, but the thorax not reddish as in P. loBvigatus and 

 P. Tttpdjoiivs ; the elytra too liave not the distiiu't reddish sutural 



