of the Amazons Valley. 219 



three transverse sulphur-coloured lines, one along the front 

 margin extending to the upper surface, and two shorter, near 

 the hind margin ; there is also a short line above, in the middle 

 of the fore margin, and a round spot in the middle, near the hind 

 margin. Scutellum purplish. Elytra prominent at the shoulders, 

 then gradually attenuated to near the apex, afterwards more 

 quickly narrowed, apex truncated in a straight line, sutural angle 

 simple, external angle produced into a short and acute tooth ; 

 surface clothed with strong erect bristles, each proceeding from 

 a puncture, dark purplish, with a silky gloss ; a small oblong spot 

 on each side near the scutellum, and two larger, rounded, on the 

 disk (one before, the other after, the middle) and a transverse 

 spot at the apex sulphur-yellow. Body beneath blackish, clothed 

 with grey pile and with an oblique stripe on each side of the 

 breast, and a row of linear spots on each side of the abdomen, 

 densely ashy tomentose. Legs pitchy red, ringed with ashy ; 

 fore tarsi simple in both sexes. 



c? Terminal abdominal segment moderately short, depressed, 

 slightly narrowed towards the apex; both dorsal and ventral 

 plates truncated and slightly emarginated. 



§ Terminal abdominal segment greatly elongated, tubular; 

 ventral plate simply truncated, dorsal lanceolate, longer than the 

 ventral. 



This very beautiful little species occurred sparingly at Ega, on 

 slender branches of trees in the forest*. 



5. Colobothea luctuosa, Pascoe. 



Colobothea luctuosa, Pascoe, Trans. Ent. Soc. Lond. v., n. s. i. 42. 



" C. nigra ; capite vittis tribus, prothorace quinque, elytris singulis 

 duabus, una humerali altera medio-suturali, ochraceis, his fascia 

 apicali, macula tertia terrninali, antennarum articulis quarto sexto- 

 que basi, albis. Long. A\ liri. Para." Pascoe, loc.cit. $ $ . 



This elegant species is readily distinguishable from all others 

 that I have seen, by its peculiar colouring. The thorax is tumid 



* To this section of the genus belongs the following : — 



Colobothea biguttata, n. sp. Parum elongata, convexa, postice a medio 

 elytrorum declivis, grisea. Caput obscure griseum. Antenna? picese, 

 articulis basi griseis. Thorax lateribus longe ante basin tuberculatis, 

 deinde angustatus, griseus, dorso fulvo quadrimaculatus. Elytra basi 

 lata, humeris paulo obliquis, imprimis sensim, apices versus citius an- 

 gustata, apicibus truneatis, angulis suturalibus obtusis exterioribus 

 breviter spinosis ; supra punctata, haud setosa, grisea, maculis rotun- 

 datis fulvis et altera pone medium majore et discoidali nigra ornata. 

 Pedes rufescentes, tibiis tarsisque nigricantibus, his articulo primo 

 griseo. Maris (?) segraento ultimo abdominali simplici obtuso 

 Long. A\ lin. <?(?). Hab. in Brasilia, a Dom. Jekel sub nomine 

 C. biguttata Dej. missa. 



