Mr. H. W. Bates on the Endomyehidse of the Amazon Valleif. 167 



but deep, and the first ventral segment has a small tubercle iu the 

 middle of its hind edge. 



I captured one individual of this remarkable species at Obydos, in 

 company with C. internqyttts, Gerst., and C. cinctus, Fab., the extreme 

 varieties of which it curiously resembles in colour. 



9. Corynomalus lividus, n. sp. 



C. ovatus, paulo convexus, rufo-ferrugineus, antennis, articulis duobus 

 basalibus exceptis, tibiisque nigi'is ; elytris punctatis, interstitiis punctu- 

 latis, bninneo-rufis parum nitidis. — Long. lin. 3j ( c? $ )• 



The body is- more oblong and less convex than in the other species 

 of this section. Reddish. Head pimctate, shining. Antennte with 

 the joints slender, the first red, the second pitchy, the rest black, shining. 

 Prothorax slightly widened after the middle, thence narrowed to the 

 apex, the apical angles prominent and acute, punctm'ed, shining. Elytra 

 slightly but regidarly convex, the convexity being nearly in continuity 

 with the prothorax, its highest part at the middle of the elyti'a, widest 

 behind the shoidders, thence narrowed and rounded gi'adually to the 

 apex, punctured, the interstices finely punctured ; brownish-red, livid, 

 the margins scarcely paler. Under sm-face of the body, legs except 

 the tibiae which are black, and under-margins of the el^ira rufous, 

 shining. 



This was a common species at Para, on small Boleti covering old 

 palings in plantations, or on decayed branches of trees in the forest. 

 I have before me three males and one female. The legs are remark- 

 ably short, the middle tibiae of the male veiy crooked near the apex, 

 and the first ventral segment in the same sex is furnished with a 

 minute tubercle in the middle of the hinder edge. 



10. Corynomalus subcordatus, Gerstaecker, Mon. p. 157. 



This species is common throughout the Amazon region from Para 

 to St. Paulo. AU the examples before me (two) from the last-men- 

 tioned locality seem to belong to var. h of Gerstaecker, having the 

 head, thorax, femora, and tarsi clear red ferruginous. The speci- 

 mens from Ega (six) have the same parts more obscure, with the 

 elytra brassy-\iolet or dark greenish-blue. The typical examples, as 

 Gerstaecker mentions, occxu- at Para. 



11. Corynomalus quadriplagiatus, n. sp. 



C. ferrugineo-rufus sericeo-micans, antennarum clava fusca, elytrorimi 

 macidis duabus magnis cyaneo-nigris vix nitidis. — Long. lin. 3| ( 5 ). 



Compact, rusty-red. Head distinctly pimctm-ed. Antenna? sliining 

 red, club fuscous. Thoi-ax with the sides gradually but very slightly 



n2 



