208 
fringed beneath ; colour blackish, thinly clothed with grey pile. 
Thorax cylindrical, a little narrowed in front, surface coarsely 
punctured, the punctures here and there running into rugse ; 
greyish black, with six tawny vittse. Elytra linear, very slightly 
narrowed from base to apex, the latter transversely sinuate- 
truncate, both angles acute; surface thickly punctured, except 
near the apex, greyish black ; each elytron marked with three 
tawny vittse, the innermost one of which is very narrow near 
the base, and all terminate in a broad, subapical, tawny-ashy 
belt, which is succeeded by a black belt occupying the apex. 
Body beneath and legs grey ; sides of breast with two tawny 
streaks. 
Ega, on slender branches. 
3. Megacera rigidula, n. sp. 
M. linearis tenuis, postice sensim attenuata, griseo-nigra ; capite 
lateribus vittisque duabus verticis cinereo-fulvis ; thorace grosse 
sparsim punctato, vittis sex, et elytris utrinque vittis tribus cinereo- 
fulvis, vittis duabus lateralibus elytrorum ante apicem terminatis. 
Long. 4^ lin. 
Head with vertex moderately prolonged, face short, slightly 
retracted; black, clothed with grey pile, covered with large 
punctures ; sides and two convergent vittse on the vertex ashy 
tawny. Antennse rust-coloured. Thorax cylindrical, covered 
with large scattered punctures, some of which are confluent, and 
marked with six tawny-ashy vittse. Elytra slender, gradually 
narrowed from base to apex, the latter sinuate-truncate, with 
both angles produced and acute, the external one most so; sur- 
face coarsely punctate-striate to the apex, greyish rusty black, 
each elytron with three ashy-tawny vittse, all thickest towards 
the base (the lateral one furcate), and the two lateral ones ter- 
minating before the apex in an ashy spot. Body beneath and 
legs grey, the tomentum more dense on the sides of the body. 
Santarem. 
Genus Hippopsis, Serville. 
Serville, Encycl. Method, x. p. 336. 
As already observed in the remarks under the head of Megacera^ 
this genus is remarkable for the very elongated narrow form of 
body, and equally elongated hair-like antennse, which are fringed 
with fine hairs beneath, at least the basal joints. The body is not 
linear, as mMegaceray but is gradually attenuated posteriorly, the 
elytra having their apices prolonged into a point. The degree to 
which this prolongation of the elytral tips is carried varies in the 
different species, and offers a good mark for distinguishing some 
of them. In some, namely those which approach Megacera^ the 
elytra are simply very obliquely sinuate-truncate at the apex. 
