169 
30. Colobothea lucariay n. sp. 
C. modice elongata, nigra, vertice lineis duabus divergentibus, tho- 
race lineis tenuibus quatuor, elytris maculis paucis hie illic con- 
gregatis, griseis ; his apice cano marginatis, oblique truncatis, 
angulis extends spinosis. Long. 5 lin. S . 
Head black, forehead with three obscure grey lines, vertex 
with two divergent lines of similar colour, and the posterior part 
of the orbits also grey. Antennae black, base of fourth, eighth, 
and tenth joints grey on one side, sixth joint with a whitish 
ring. Thorax black, with a silky olivaceous gloss, upper surface 
with two slender parallel grey lines, each side also with a similar 
line visible in part when the insect is regarded from above ; 
there is also a grey line above the coxae. Elytra prominent, and 
scarcely oblique at the shoulders, thence gradually attenuated 
to the apex, which is on each side obliquely truncated, i. e. the 
sutural portion is more advanced than the lateral angles, which 
are produced into spines ; the surface is finely punctate-granu- 
late, and of the same colour as the thorax ; the grey spots are 
nearly all of equal size and distinct ; but they are collected 
partly into groups, and here and there confluent ; the grey 
apical margin is of equal width from the sutural to the external 
angle. Body beneath thinly clothed with grey pile; sides of 
breast not striped with thicker tomentum. Legs black, ringed 
with grey. 
^ . Terminal ventral segment truncated, angles produced into 
short spines ; dorsal segment rounded. Anterior tarsi mode- 
rately dilated and fringed. 
S. Paulo, Upper Amazons. Very closely related to C. naevi- 
gertty differing only in the oblique truncature and somewhat 
difi’erent arrangement of spots of the elytra. 
31. Colobothea crassay n. sp. 
C. major, robusta, nigra, tomento olivaceo-griseo vestita, vertice tho- 
raceque dorso lineis duabus divergentibus, elytris maculis nu- 
merosis, minimis, discretis, fulvo-griseis, apice cano marginatis. 
Long. 8-10 lin. (S $ . 
Difiers from C. ncevigera in being of much larger size, in the 
spots of the elytra being very much smaller and more numerous, 
and in the dorsal lines of the thorax being posteriorly divergent. 
In shape and in colour the twq^^species offer no tangible point 
of difference. As in C. ncevigera, there are only two thoracic 
lines visible from above, although there is a lateral line on each 
side and a broader streak above the coxae (yellower in colour 
and extending to the abdomen) ; the form of the terminal abdo- 
minal segment in both sexes offers also no difference in the two 
