149 
stripe. Antennae one-fonrth longer than the body, dark red, 
becoming blacker towards the apices and greyish at the bases of 
the joints. Thorax widened from the front to a short distance 
from the base, where it is tumid on each side and after that con- 
stricted ; surface pinkish ashy (the tomentum very compact), 
each side occupied by a broad velvety-black vitta, below this is a 
pinkish-ashy stripe succeeded by another black one. Scutellum 
pinkish tawny. Elytra elongated and tapering from base to apex, 
but appearing to have a flexuous outline, from the great promi- 
nence, after the middle, of a raised line which runs along the de- 
flexed sides very near to the extreme margin ; apex obliquely sinu- 
ate-truncate, sutural angles prominent, external angles produced 
into a long spine ; the lateral carina proceeding from the promi- 
nent shoulders runs in a strongly flexuous course to near the apex ; 
surface punctured, pinkish grey, and ornamented, on each elytron, 
with four rich velvety-black spots, namely, one triangular in the 
middle of the base, a second long and oblique, stretching from 
under the shoulder to the disk of the elytron, a third, angulated, 
behind the middle, and a fifth, oblique, near the apex, all margined 
with pinkish tomentum. Body beneath blackish, clothed with 
grey pile j breast red. Legs red, ringed with grey ; fore tarsi 
simple in both sexes. 
S Terminal ventral segment with a broad triangular excision, 
angles acute ; dorsal segment obtuse, narrowly notched in the 
middle. 
$ Terminal ventral segment with a deep semioval excision, 
angles acute but not produced; dorsal segment with a broad 
notch in the middle. 
This extremely beautiful species was rare. I met with it only 
at Obydos and on the banks of the Tapajos. It is found in 
Cayenne, and I have adopted the MS. name under which it 
exists in some collections in Paris. 
4. Colobothea jiavomaculata, n. sp. 
C. parva, angustata, postice attenuata, purpureo-nigra ; capite lineis 
tribus, thorace lineolis transversis lateralibus alteraque dorsali, 
elytris maculis sex apiceque sulphureis. Long. 3J— 4 lin. c? $ . 
Head black, front with three sulphur-yellow lines, the middle 
one extending to the occiput ; cheeks with a yellow line behind 
the eyes. Antennse twice the length of the body in both sexes, 
pitchy black, bases of the fourth and sixth joints with pale grey 
rings. Thorax rather small, tumid on the sides in the middle, 
constricted near the base ; purplish black, the sides each with 
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 
