294 
Mr. H. W. Bates on Ceramhyeidce 
7. Octoplon calligmmmum,n.^^. 
Magnum^ elytris hand linearibus_, latis, apicem versus ro- 
tundato-attenuatis, piceo-nigrum^ vix nitidum ; tborace in- 
eequali, tuberculato^ sericeo-opaco et argeuteo-tomentoso; 
elytris basin versus macula magna lateral! subquadrata, 
et longe post medium fascia lata postice ad suturam 
indentata fulvis, supra passim punctatis, apice uni- 
spinosis; femoribus incrassatis^ baud clavatis, apice bi- 
den tatis ; an tennis piceis_, apicem versus pallidioribus. 
Long. 9 lin. ? . 
A large species^ of much less linear figure than usual in 
this group. The elytra much wider_, with the sides rounded, 
and tapering towards the apex ; the thorax is very un- 
even, and projecting a little in the middle of the sides, 
but the tubercles are not distinct or acute ; the whole 
surface is silky and sub-opaque. The elytra are thickly 
punctured throughout, and have short erect set^e ; the 
spots are of very large size and fulvous ; the space of 
ground-colour left between the anterior spot and the 
posterior fascia, forms a straight belt, owing to the fascia 
not being advanced on the suture, and the anterior spot 
being narrowed on the sides instead of widened. 
Hah. — Ega. 
8. Octoplon cinctulum, n. sp. 
Minus elongatum, cylindricum, nigro-piceum, griseo- 
pilosum, vix nitidum, antennis, pectore et pedibus ferru- 
gineis; thorace insequali, medio paulo dilatato, tuberculo 
discoidali magno rotundato, sericeo-opaco ; elytris punctis 
setiferis seriatim ordinatis et inter haec punctulatis, basi 
rufescentibus, macula linear! transversa versus basin fas- 
ciaque angusta integra pone medium testaceo-flavis > 
femoribus paulo incrassatis, apice bidentatis. 
Long. 34 lin. $ . 
Of shorter form than its allies, linear or cylindrical. 
The thorax is silky and opaque, the elytra moderately 
shining, with very distinct setiferous punctures, and be- 
tween them punctulate ; the yellow marks are a trans- 
verse spot across the disc, not far from the base, and a 
narrow straight fascia considerably after the middle. 
Hah . — River Tapajos. 
