616 REV. H. S. GORHAM ON [DeC. 3, 



fasciisque duahus denticulatis, una mediana ad suturam inter- 

 rupta, una subapicali arcuata luteis ; antennis ai'ticulis duobus 

 pritnis exceptis, tibiis farsisque nigro-fuscis. 



Long. 12 millim. 



Hab, Peru, R, Ucayali (Bartletf). 



Var. prothorace nigro-marginato, pimctis duobus externis cum 

 margine conjunctis, elytris macula parva humerali et epipleuris 

 basifulvis. 



Hab. Amazons (Bates). 



Head and thorax forming a nearly even semicircle in front, the 

 latter being excised deeply, but not widely, for the reception of the 

 former, both of a uniform rich orange-red ; in the typical examples 

 from Ucayale only the extreme limb, and this so narrowly as not to 

 be apparent, is blackish. The ten spots are placed, four trans- 

 versely in front, and six in a row behind these, the three on each 

 side being arcuate, the four central ones forming a square. The 

 scutellum is either rufous or pitchy. The elytra are evenly 

 punctate-striate, the rows of punctures very finely impressed, the 

 interstices smooth and shining. The underside wholly of the rich 

 red colour of the head and thorax. The metasternal and abdominal 

 lines both very fine and short. The prosternum is compressed, 

 forming a blunt keel, a very little prominent in front. The elytral 

 fasciae are yellow, the basal markings more orange-coloured. The 

 first fascia commences rather before the middle of the margin, but 

 is oblique, reaching the suture about the middle ; it has two or three 

 irregular teeth on each side. The epipleurse are quite black in the 

 typical examples. The legs are of the body-colour, with black tibise 

 and tarsi ; in the variety the tibise are rufous at their tips. 



In the Amazons specimens the limb of the thorax is more 

 distinctly black, and on the middle of the front has a triangular 

 black spot, and on the base three such spots attached to it, the two 

 exterior discoidal spots also being united, so that the six remaining 

 spots form two equilateral triangles ; the wide concave part of the 

 epipleura is yellow. Four specimens of the typical form from Mr. E. 

 Bartlett, and two of the variety from Crotch's collection, and two 

 others from the Amazons in the collection of E. Armitage, Esq. 



7. Brachysphenus bistrifoliatus, sp. nov. (Plate LXI. 

 fig. 5.) 



Late ovafus, ater, nitidus ; elytris perobsolete punctato-striatis, 

 singulis macida magna trifoliata basalt, fasciaque lata, ad 

 suturam interrupta, pone medium aurantiacis. 



Long. 13 millim. 



Hab. Peru, Chancamayo {Buckley'). 



Labrum and palpi yellow ; head and thorax smooth, the latter 

 glabrous, twice as wide as long at the base, the front narrower, the 

 basal median lobe nearly covers the scutellum ; prosternum com- 

 pressed, the apex of the process wrinkled. Elytra with red epi- 

 pleurse, but the limb very narrowly black. The markings are 

 peculiar; the basal one is like three irregularly shaped red spots 



