270 CHBYSOMBLIDjE. 



466. Melinobius longipes, sp. n. 



Pale flavous ; extreme sutural margins and edge of elytral 

 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. Elvtra narrowly subcylin- 

 drical and very elongate, finely and regularly punctate-striate. 



J . Elytra strongly punctate-striate ; last abdominal segment 

 with a large and broad depression, occupying the entire middle. 



2 . Elytra much more finely punctured ; last abdominal segment 

 with a round fovea, its margin deeply incised at middle. 



Length 5 mm. 



Hob. Tenasserim (DohertyColl. Brit. Mus.}. 



Subfamily IV. CHLAMYDIN^E. 



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, nearlv 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 Cryptocephalince, is invisible 

 from above. 



