Mr. H.W. Bates on the Endomychidse of the Amazon Valley. 165 



5. Corynomalus Jiumeralis, n. sp. 



C. rufo-ferrugineus, antennis, articulis duobus basalibus exceptis, tibiisque 

 nigris ; tborace lato, angulis anticis obtusis ; elytris breviter cordatis, 

 mediocriter subrugoso-punctatis, interstitiis perminute punctidatis, vio- 

 laceis, nitidis, bumeris apicibusque macula flava. — Long. lin. 3^ ( § ). 



Head finely punctured, sbining. Antenna? with the basal joint 

 bright red, second pitchy, the rest black, shining. Thorax similar in 

 shape to that of C. discoideus, but having the fore-angles more produced, 

 smooth, shining, finely punctured. Elytra obtuse-cordate, not quite so 

 convex as in C. discoideus, covered with moderately large shallow punc- 

 tures here and there connected by ruga?, the interstices glossy and 

 finely punctured ; violet or brassy-violet, the very prominent and glossy 

 humeral callus and a subrounded spot at the extreme apex yellow. The 

 body beneath shining red; the under-margins of the elytra brassy- 

 piceous, rugose ; the basal half of the tibia? black. 



I have two examples, both females, of this species, which I took 

 at St. Paulo. 



6. Corynomalus Icetus, n. sp. 



C. rufo-ferrugineus, antennis, articulis duobus basalibus exceptis, tibiisque 

 nigris ; thorace pone basin parum ampliato, angulis anticis prominulis, 

 acutis ; elytris elongato-cordatis, fortiter rugoso-punctatis, interstitiis 

 convexis, subtiliter punctulatis, lsete cyaneis, margine flavo apud latera 

 angustissimo, apud humeros et apices in maculam amplificato. — Long, 

 lin. 3f (tf). 



Shining red. Head punctured. Two basal joints of antenna? red, 

 the rest black, shining. Thorax with the sides slightly and very 

 gradually widened to a little beyond the middle, thence rather more 

 abruptly to the apices, which are produced and acute. Scutellum red, 

 smooth. Elytra more elongate than in C. discoideus, otherwise similar 

 in shape, not quite so convex, roughly rugose-punctate ; the interstices 

 raised and finely punctured, shining steel-blue ; the lateral margins 

 narrowly edged with yellow, which colour expands at the shoulders 

 into a large spot covering the humeral callus, and at the apex into a 

 triangular spot. Beneath, the under-margins of the elytra are yellow, 

 with a stripe along the inner edge brassy ; the tibia? have the basal 

 half black ; the rest of the imder surface and the legs are red. 



One example, also from St. Paulo. Notwithstanding the consi- 

 derable points of difference between this and the preceding, I am 

 inclined to consider them as belonging to one and the same species. 

 I think it probable that the C, apicalis of Gerstaecker is another 

 variety. I believe we have to deal here with a veiy variable species, 

 which would require a much larger number of examples to enable 

 us to define its limits correctly, and unfortunately I neglected whilst 



