166 Mr. H.W. Bates on the Endomychidae of the Amazon Valley , 



in that country to obtain a sufficient number of specimens. I think 

 it likely the following is also another variety of this species. 



7. Corynomalus auratus, n. sp. 



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

 nigris j tborace pone mediimi paiilo ampliato ; elytris ovatis, fortissime 

 rugoso-pimctatis, interstitiis subtiliter pimctulatis, auratis nitidissimis 

 apicibus flavo-rufis. — Long. lin. 4^ (c^*). 



Head and protborax shining, sparingly punctured ; the sides of the 

 latter gradually widened after the middle, roimded and narrowed to the 

 apex, the fore-angles roimded. Elytra slightly widened from the 

 shoulders to one-fourth the length, then slightly narrowed to two- 

 thirds the length, afterwards gradually narrowed to the apex, the con- 

 vexity regular and moderate ; they are covered with large punctures, 

 which are everywhere connected in groups by rugae ; the interstices 

 convex, highly polished, very finely and sparingly punctm-ed, brilliant 

 golden, the apex only with a yeUowish-red spot. Beneath, the body 

 and legs shining red ; tbe tibiae, except their apices, black ; the under- 

 margins of the elytra brassy, coarsely punctured. 



The middle tibiae of the male in this species are strongly bowed, 

 with the usual emargination on the inner side near the apex very 

 large. I captured only one individual of this remarkably beautiful 

 form, at St. Paulo, in company with the two preceding. 



8. Coryno7nalus OerstaecJceri, n. sp. 



C rufo-ferrugineus, antennarum articidis 4-8 elongatis, clava nigra ; pro- 

 thoracis lateribus apud medium fere rectis, angulis anticis prominidis ; 

 elytris subovatis, mediocriter punctatis, interstitiis subtiliter punctulatis, 

 nigTo-cyaneis, margine omni, sutura fasciisque duabus, post medium 

 linea angusta in medio connexis, rufo-ferrugineis. — Long. lin. 4|( (^ ). 



Head and thorax shining, thickly and finely pimctured. Antennje 

 with the joints 4-8 more elongated than is usual in this genus, red, 

 seventh and eighth joints piceous; club black. Thorax scarcely per- 

 ceptibly widened from the base to near the apex, whence narrowed, 

 the apical angles being produced and subacute. Elji;ra shaped as in 

 the preceding species, but the convexity much sharper, rising more 

 abruptly from the thorax, moderately pimctm-ed, the interstices thickly 

 and finely punctm'ed, blue-black ; the margins and suture narrowly 

 and equally edged with redj behind the middle are two narrow 

 crooked fasciae of the same breadth and colour as the margins, con- 

 nected together in the middle by a narrower line of the same colour ; 

 the anterior fascia is a little behind the middle, the posterior midway 

 between it and the apex. Body beneath and legs ferruginous, shining ; 

 under-margins of the elytra yellow, punctured. 



The middle tibiae in the male are not bowed, the apical notch short 



