i8 Indian Museum Notes. [Vol. VI. 



angle thus formed. Sides of the prothorax flat or slightly concave. 

 Elytra very obtuse behind, ornamented with ribs, keels or teeth 

 (except in H. confertus Lee). 



1. Heterarthron Feanus, Lesne. 



Ann. Mus. Gen., Serie 2, Vol. XIX (XXXIX), 6 Maggio, 1899. 



Long n£ — 18 mill. 



Long, dark brown. Top of the head densely granulated. 

 Frontal clypeal suture nearly straight. Epistome toothed in the 

 middle of its anterior edge. Antennae 11-jointed. Labrum indented 

 in front. Prothorax markedly constricted behind, narrower than the 

 head (including the eyes) and than the elytra. Median groove 

 -of the pronotum strongly impressed at a point situated a little in 

 tfront of the middle of the prothorax. Apical declivity of the elytra 

 without restricting ridges or keels, and showing a few scattered 

 ■granulations, its punctuation being extremely fine. The suture is 

 bridged on the declivity. 



<?. Top of the head with hardly any granulations. Clypeal tooth 

 small, keeled. Basilar piece of head simple. Labium symmetri- 

 cal, without apophysis at the left anterior angle. Pronotum 

 densely granulated, except in its middle-anterior portion where it is 

 finely punctured ; granulations very scattered on the disc. Elytra 

 slightly widened behind, shining in their dorsal area, strongly and 

 rather densely punctuate near their base and showing laterally an 

 oblique side (edge) where the punctuation is extremely fine and 

 little dense, and where the tegument is dull. This dull area is 

 limited behihd on the inner side by a longitudinal very obtuse ridge, 

 furnished itself on its inner side with a series of granulations, 

 Sutural angle of the elytra toothed. Abdominal pubescence long 

 and dense. 



? . Top of the head covered as is the pronotum with erect dense 

 granulations. Median tooth of the epistome obtuse, not keeled. Eves 

 proportionately larger than in <£. Pronotum densely granulated 

 except in the middle of the anterior edge. Elytra nearly parallel, 

 strongly punctuate on the back and sides, finely and densely rasp- 

 like on the lateral edges. Apical angle of the elytra straight, pointed. 

 Abdominal pubescence less dense than in the <?• 



This description is made from 5 individuals, 4 6" and 1 $ . One 

 of the £ is very small (u£ 'millim. ; the length of the others 

 varies between 17 and 18 millimetres. 



Distribution. — Thagata, Tenasserim. 



Unrepresented in Coll. hid. Mus. Calc. 



