of the Amazon Valley, 295 
9. Octoplon polychromum, n. sp. 
Elongatum, minus convexum ; thorace valde ingequali, 
lateribus medio tumido et supra tuberculis quiuque 
magnisj cum capite dense sericeo-tomentoso ; elytris 
dimidio basali rufo, fascia obliqua versus basin (ad su- 
turam late interrupta) testaceo-flava nigro-eeneo-margi- 
nata, pone medium fascia testaceo-flava obliqua antice 
nigro-aeneo-marginata, spatio apicali nigro-£eneo, apice 
ipso testaceo-flavo_, supra nitidis, punctis parvis seti- 
feris ; antennis piceis ; femoribus rufis, tibiis tarsisque 
nigris. 
Long. 64 lin. $ . 
The design and colours of the elytra are much varied. 
Near the base is an oblique, moderately wide, yellowish 
fascia, which is far from reaching the suture, and is mar- 
gined with brassy-black, this latter colour occupying the 
whole humeral space, leaving a spot of pale rufous only 
near the scutellum ; behind the middle is an oblique 
and entire fascia, also of moderate but considerable width, 
margined anteriorly with brassy-black ; the whole space 
behind this is brassy-black, except the white tips ; the 
whole surface is very glossy, and is roughened only by 
the setiferous punctures, which are very minute. 
Hah . — Eiver Tapajos. 
10. Oetoplon carissimum. 
Ihidion carissimum, White, Cat. Longic. Brit. Mus. 
p. 223, pi. V. f. 9. 
Pallide luteum leevissimum ; capite, antennarum ar- 
ticulis duobus primis aterrimis; elytris, parte basali 
pallide lutea, macula alba, et postice fascia transversa, 
ornata, parte postica aterrima, apice extreme cum spinis 
albis.” (White.) 
Long. 4 lin. 
Hah. — Para. 
This seems to be the position of this species, which, 
although taken by me, was not reserved for my own 
collection. 
Y 2 
