1S74.] 27 



bonier, the extreme sutural margin only being ratlier pale. The head 

 and antenna) show no difference from P. hrvigntiis. The thorax al^o 

 is precisely similar, being quadrate-cordate, ■with sharp anterior and 

 posterior angles, the former veiy slightly produced with a sinuation in 

 the sides behind them. The elytra arc narrower, and more parallel ; 

 witli rows of fine punctures, not distinctly impressed in stri;p, and 

 interstices perfectly plane and not so glossy as in P. Iceingatus ; the 

 3rd and 5th interstices have a few inconspicuous punctures. 

 E. Huallaga; Peru (Mr. Eartlett). 



PACnYTELES SULCIPENNIS, SJ). n. 



JP. grannJato ajjinis ; thoracs glahro grosse sparsim punctato differt. 

 Gonvexus, castaneo-riifus, nifidus, capife posticefusco ; elyfris omnino 

 profunde sulcatis, sidcis fundo punctulatis, interstitiis convexis nitidis, 

 pleru7nque seriatim punctaf is. Long. 3i lin. 



The head, as in P. gramdatus, is strongly constricted behind the 

 eyes ; the bottom of the constriction is rugose, and the convex middle 

 of the forehead smooth. The thorax is transverse-quadrate, not so 

 much narrowed behind as in P. IcBvigatus and allies ; all the angles 

 nearly rectangular, the sides slightly sinuated behind the anterior 

 angles, and their edges undulated; the surface is sprinkled throughout 

 with large round punctures. The sulci of the elytra are deep even on 

 the sides and up to the wheal at tlic apex of the elytra ; their punctu- 

 ation crenulates the sides ; but the summits of the interstices are 

 glossy and smooth, with a row of punctures on most of them. 



Ega. This species must be nearly allied to P. distinctus (Chaud.), 

 but that is described as having the thorax " ad latera tantum nonuihil 

 punctatus." 



Paciitteles aspericollis, sp. n. 



Elongdto-ohlongus, caslaneo-rufus, elytris nigris poJitis ; capite et 

 thoracc elytris plus qunm dimidio angusliorihus, densissime scahrosis 

 opacis, hoc laterihus muUidentatis ; elglris punctidato-stritttis, inter- 

 s/i/iis platiis. Long. ',i\ lin. 



A remarkable species, somewhat resembling P. gramdatus in the 

 sculpture, but not in the form of the thorax, which is narrow, sub- 

 cordate, narrowed only near the base; its anlerior angles are nuich 

 produced forward and acute, its sides are scarcely rounded and dilated, 

 and present a scries of three or four dentiform projections with 

 corresponding sharp notches, and the whole surface is densely sculptured 

 and clothed with ereci h.'iirs. The head is s^imiljirly sculptured From 



