422 Rev. H. S. Gorham's descriptions of 



are densely covered with a silky pubescence. The an- 

 tennae have the ninth and tenth joints triangularly acumi- 

 nate internally, and these joints are red; the terminal joint 

 is wanting in the single specimen I possess. 

 Hah. — Brazil. 



Pelonium irroratum, n. sp. 



Breviter oblongum, testaceum, elytris ampliatis con- 

 vexis fusco-irroratis fortiter punctatis, punctis irregulariter 

 disposltis, fuscis, antennarum clava nigra. 



Long. 2— 2i lin. 



Mandibles blaclv, at least at the tip, head and thorax 

 obsoletely punctured, shining, the latter lobed, but not 

 strongly at the sides. Elytra very much widened behind, 

 sparsely and irregularly punctured ; the punctures fuscous, 

 this colour often filling the intermediate spaces, and being 

 especially condensed near the scutellum. Antennas pale 

 club-black. 



Belonging to the variahile group, but distinct from any 

 other by the fuscous punctures. 



Hab. — Amazon (Bates); coll. Fry and Gorham. 



Pelonium ridens, n. sp. 



Oblongum, flavum, nitidum, elytris vittis duabus ob- 

 liquis cum linea submarginati conjunctis tibiis tarsisque, 

 rufo-ferrugineis ; antennis externa nigris. 



Long. 4| lin. 



Nearly allied to viitatum, Spin., which it resembles in 

 colour, but from which it differs as follows : — The thorax 

 is nearly smooth, the punctuation of the sides and lateral 

 lobe, which is obvious in vittatum, here being absent. 

 The elytra are smooth, showing no trace of the impressed 

 series of punctures, but covered with minute iri'egular 

 punctures and dark dots very slightly impressed. The 

 pattern is quite different, and consists of an oblique stripe 

 which, starting from near the scutellum, continues in a 

 line from the humerus nearly parallel to the margin; this 

 line terminates before the apex, where it is joined by a 

 second oblique stripe commencing near the suture at the 

 middle ; these stripes are of a rich orange-yellow. The 

 ground colour of the elytra is of a paler yellow than the 

 head and thorax. The antenna are apparently ten-jointed, 

 the seventh joint, or the one preceding the club, is short ; 



