270 
CHRYSOMELlDiE. 
466. Melinobius longipes, sp. n. 
Pale flavous ; extreme sutural margins and edge of elytra! 
epipleurae at base black. 
Very elongate and subcylindrical. Head impunctate, with short 
central groove at vertex ; clypeus longitudinally concave ; eyes 
very deeply triangularly notched ; apex of mandibles black ; an- 
tennae extending beyond middle of elytra, flavous, third joint 
distinctly shorter than fourth, following joints very elongate and 
slender. Thorax short and subcylindrical, narrowed in front, sides 
perfectly straight ; surface with a distinct oblique sulcus at each 
side near base, entirely impunctate, posterior margin very narrowly 
black, the angles acute but not produced. Scutellum elongate, 
apex pointed, base with small fovea. Elytra narrowly subcylin- 
drical and very elongate, finely and regularly punctate-striate. 
c? . Elytra strongly punctate-striate ; last abdominal segment 
with a large and broad depression, occupying the entire middle. 
5 . Elytra much more finely punctured ; last abdominal segment 
with a round fovea, its margin deeply incised at middle. 
Length 5 mm. 
Hah. Tenasserim ( Doherty — Coll. Brit. Mus.). 
Subfamily IV. CHLAMYDINHh 
Subquadrate or subelongate. Head deeply inserted in thorax, 
flat ; eyes large, deeply emarginate at inner margin ; antennae 
short, of variable shape, inserted when in repose in deep grooves 
on the flanks of thorax, the basal or terminal joints dentate. 
Thorax always very convex, generally with a strong elevation on 
the posterior portion, deflexed at front of anterior angles, posterior 
margin sinuate at sides ; median lobe pronounced, nearly always 
emarginate at apex. Scutellum transverse, trapezoidal, anteriorly 
provided with a point that fits into the aperture of the thoracic 
lobe. Elytra closely applied to base of thorax, lateral lobes very 
strongly produced, angulate, sutural margins generally serrate or 
denticulate, apex not covering pygidium. Legs short and robust : 
femora triangularly compressed with acute margins, when in repose 
resting in excavations on the abdomen and breast ; tarsi short 
but variable, claws appendiculate or bifid. Prosternum generally 
widened anteriorly at base, compressed posteriorly into a ridge. 
These insects are of very peculiar shape, and have the upper 
surface almost in every case raised into tubercles and ridges. 
They resemble pieces of ore with metallic lustre, or bits of 
stone and earth ; the head, as in the Crypt ocephalina >, is invisible 
from above, 
