25 
b. Fore tibiae compressed, not dilated. 
[To this section belongs the European A. variusr\ 
8. Acanthoderes maculatissimus, n. sp. 
A, curtus, subdepressns, tomento ocbraceo-fulvo vestitus : elytris 
lituris nonnullis griseis, pimctis iniiumerosis lineaque transversa 
uiidata pone medium brunneis. Long. 6 lin. J $ . 
Head punctured, fulvous varied with browm. Anterinse brown, 
spotted and ringed with grey. Thorax with the lateral tubercles 
produced and pointed at the apex, and with two obtuse dorsal 
elevations and a shining central line; the interstices punctured; 
in colour minutely variegated with fulvous and brown. Elytra 
subtrigonal, brietly sinuate-truncate at the apex, the external 
angles produced ; punctured throughout, the centro-basal ridge 
apparent only at the extreme base, ochrey fulvous, silky, studded 
with small brown spots, which everywhere cover the punctures : 
there are a few light-grey marks, and behind the middle a trans- 
verse dark-brown zigzag line. Body beneath ashy brown. Legs 
variegated with ashy, dusky brown, and fulvous. The fringe of 
the male fore tarsi is black. The prosternum is simple, the 
mesosternum subvertical in front. 
At Santarem ; on hanging woody climbers in new plantations. 
9. Acanthoderes thoracicuSj White. 
Acanthoderes thoracicus, White, Cat. Long. Col. in Brit. Mus. ii. p. 359. 
To the description quoted above I will add that the third to 
the sixth antennal joints are acutely produced at their apices 
beneath, as in A. Egaensis and other species ; the body is de- 
pressed ; the elytra are subtrigonal, with the apices slightly 
truncated, and have always an oblique dark-brown streak on the 
disk; the centro-basal ridges are narrow, disappear about the 
middle of the elytra, and leave a depressed space between them. 
The prosternum is simply rounded behind, the mesosternum 
vertically inclined in front. Long. 6-7^ lin. d 2 • 
This is a common species, on branches of felled trees, in the 
forest throughout the Amazon region. It is also found, I be- 
lieve, at Cayenne. 
c. Fore tibiae neither dilated nor compressed. 
10. Acanthoderes albolinitus, n. sp. 
A. elongatus, subcylindricus, tenuiter tomentosus, fulvo-brumieus : 
elytris apice coiijunctim rotundatis, pone medium plaga eommuni 
antice biramosa griseo-alba et vitta abbreviata nigra utrinque or- 
natis. Long. lin. $ . 
Head dingy fulvous, punctured. Antennae stout, as long as 
E 
