1893.] 275 



a sharply pointed, long, stout, compressed, vertical horn, and on the right side with 

 an angular, compressed elevation, surmounted by a very sharp point ; eyes coarsely 

 granulated, moderately large, the upper portion (as seen from above) obliquely 

 subtriangular ; antennae moderately stout, about reaching the base of the prothorax, 

 joints 5 — 11 widened and perfoliate, 5 — 10 transverse, 11 oval; prothorax convex, 

 nearly two and a half times as broad as long, deeply truncate-emarginate at the 

 apex, strongly bisinuate at the base, the sides slightly expanded, sti'ongly rounded 

 anteriorly, converging from a little before the base, and sharply margined, the an- 

 terior angles broadly rounded, the hind angles obtusely rectangular, the basal fovese 

 oblong and distant from the margin, the entire surface very densely, minutely 

 punctured, the disc with indications of a fine, smooth median line; elytra about 

 three and a half times as long as, and at the sides forming a continuous outline with, 

 the prothorax, sharply margined, deeply and finely punctate-striate, the interstices 

 convex, densely, minutely punctured ; beneath finely and somewhat closely punc- 

 tured, the metasternum much smoother ; prosternum slightly declivous and strongly 

 produced behind, received by the V-shaped mesosternum, the sides of the latter 

 rounded off in front ; epipleurse broad and concave at the base, extending to the 

 apex ; propleurse concave ; metasternum very short ; intercoxal process of the 

 abdomen narrow, triangular. 



? . Epistoma simply truncate in front; the intraocular space feebly and more 

 narrowly depressed in the middle, slightly swollen on either side above the inner 

 limit of the eyes, unarmed. Length, 4^ — 5^, bi-eadth, 2-^- mm. 



Hob. : Damma Island. 



Four males and three females. The asymmetrical armature of the 

 head in the male is perfectly constant, the left side being furnished 

 with a long, erect, compressed, pointed horn, and the right with an 

 angular elevation surmounted by a very acute point. This remarkable 

 insect should perhaps be treated as generically distinct from Flaty- 

 dema, but I do not propose to separate it at present. It is the only 

 Tenehrionid known to me with asymmetrical cephalic armature in the 

 male sex. The thorax and elytra are somewhat broadly margined at 

 the sides. 



Horsell, Woking : 



September, 1893. 



DESCEIPTION OF a NEW GENUS OE PHYTOPHAGOUS COLEOPTERA 



EEOM AEEICA. 



BY MAETIN JACOBT, F.E.S. 



PSEUDE[JMOLPUS, n. gen. 



Body oblong, subcylindrical ; head broad, eyes small ; palpi filiform ; antennce 



very distantly inserted immediately below the eyes, the terminal joints widened ; 



thorax slightly longer than broad, the base constricted, the lateral margin rather 



obsolete but distinct ; elytra broader than the thorax, the shoulders prominent, the 



B B 2 



