BPISPHENUS. 255 



dilating behind. The middle tibia has a long and close brush 

 of reddish hair. The club of the antenna is composed of three 

 moderatel}' long and three short lamellae. The head is slightly 

 rugose, the median elevation is rather blunt, the frontal area 

 short and broad, tlie frontal tul>ercles strong, not close together, 

 the marginal processes broadly triangular and sharp ])ointed. 

 The pronotum is relatively rather narrow, very smooth, with 

 a faint trace only of a median groove, the lateral scar small, 

 rather round and contaming a few fine punctures. The 

 elytra are rather narrow at the shoulders, which are rather 

 sharj), and the sides diverge and are strongly rounded bej'ond 

 the mi<ldle, where the width is much greater than at the 

 shoulders. They are Hnely and deeply striate both dorsally 

 and laterally, the dorsal stria^ not visibly punctured and the 

 lateral striae only very indistinctly. The mentum is closely 

 punctured at the sides and smooth at the base, which bears 

 a sharp arcuate carina from side to side. The lateral scars of 

 the mesosternum are rather deep and shining. The sides of the 

 metasfernum are closely and rather finely and rugosely 

 punctured. 



Length, 35 mm. ; breadth. 14 mm. 



Assam : Xaga Hills ( IJ'. Doh^^rty). 



Type in the British ^luseum. 



Only the unique type is known. Gravel}- mentions a " pro- 

 tuberance on the anterior margin (of the mentum) somewhat 

 as in Episphenus comptoni." There is in reality onlj^ a slight 

 convexity of the surface. 



Genus EPISPHENUS. 



Episphenus K.aup, Berl. Ent. Zeit.-<. xv. 1871,suppl., p. 45; Gravely, 

 Mem. Irid. Mas. iii, 1914. pp. 217, 320; op. cit. vii, 1918, 

 pp. 78, 8a. 



Brisfl>cn}N--i Kaiip, op. cit. p. 55. 



Ladies Kiiup, op. cit. p. 48. 



C'ltilo)nazu{i Zang, Zocl. Anz. xxix, 1905, p. 154. 



Type, E. moorei Kaup. 



Range. Ceylon, India. Annam. 



Upper surface smooth, not much flattened above, the pro- 

 notum with a median groove, generally strong and complete, 

 but entirely without hairs or set» at the sides, the el^iira also 

 without hair at sides. Head symmetrical or asymmetrical, 

 the front margin bearing two or four processes. The antennal 

 club composed of six lamellae, the last three usually, but not 

 always, distinctly longer than the preceding three. 



The essential difference between this genus and Aceraius is 

 the complete absence in Episphenus of the bristles, sometimes 

 few and inconspicuous, to be found at the sides of the pronotum 

 in Aceraius. There is always a median thoracic groove^ 

 although in E. comptoni it is incomplete and rather feeble. 



