167 
fluent and forming a marbled pattern, but leaving a black space 
near the apex ; apex itself edged with ashy. Body beneath grey, 
varied with tawny, and having, in fresh examples, a tawny-ochreous 
lateral vitta from the front edge of the prothorax to the last 
segment of the abdomen ; abdomen thinly clothed with grey pile, 
sides spotted with black. Legs black, thinly clothed with grey 
pile ; knees and tips of tibiae and tarsi black. 
. Legs elongated and robust ; anterior tarsi dilated and 
fringed. Terminal ventral segment semicircularly sinuated at 
the apex, with the angles acute and produced; dorsal plate 
broad, obtuse, faintly emarginated. 
Obydos, Lower Amazons. 
27. Colohothea carneohy n. sp. 
C. elongata, postice modice attenuata, nigra ; thorace vittis quatuor, 
elytrisque maculis numerosis discretis, carneo-fulvis, his spatio 
apicali nigro ; an tennis ( c? ) normalibus, articulis 10*"® 
aibo annulatis. Long. 5 j lin. S • 
Very closely allied to C. pur a, but differs in the degree of 
robustness and coloration of the antennse, and in the spots 
on the elytra being nearly all quite separate and inclining in 
colour towards pinkish red. The elytra are sprinkled with 
punctures, as in C. pura, but they are not so conspicuous, 
nor surmounted by elevated points ; the bristles are more nu- 
merous towards the apex, although the punctures from which 
they arise are not conspicuous. Body beneath and legs .as in 
C. pura. 
S . Terminal ventral segment semicircularly sinuated at the 
apex, with the angles acute ; dorsal obtusely truncated. Ante- 
rior tarsi dilated and fringed. 
Obydos. 
28. Colohothea forcipatUy n. sp. 
C. gracilis, postice valde attenuata, nigra, vertice thoraceque vitta 
lata communi cinerea; elytris cinereo nebulosis, relictis plagis 
lateralibus et vitta lata apicali nigris ; antennis nigris, articulo 
albo annulate ; maris segmento ventrali terminali forcipato. Long. 
4-5 1 lin. (S . 
Head black, forehead spotless, vertex with a broadish ashy 
line, which continues along the middle of the thorax, enlarging 
posteriorly, the rest of the surface of the thorax deep black. 
Antennse black, sixth joint alone marked with a white ring. 
Elytra gradually attenuated from base to apex, the latter sinuate- 
truncate, sutural angle prominent, external spiniform ; surface 
punctured, setose, and marked with an ashy cloud extending 
from the scutellum to near the apex, and emitting several irre- 
