200 



wider than prothorax, shoulders rounded, each widely rounded' 

 at apex; striate-punctate, punctures partially concealed, in- 

 terstices mostly flat or but feebly rounded, with small and 

 usually concealed punctures. Propygidium large, with dense, 

 more or less concealed punctures, each hind angle with a small 

 but distinct tubercle. Pygidium large, about as long as wide, or 

 lightly transverse, punctures as on propygidium. M esosternal 

 process wide, truncate in front, rounded behind. Metasternum 

 concave posteriorly. Abdomen elevated posteriorly, with a 

 large median excavation or fovea. Legs long ; front tibiae witb 

 three distinct teeth, hind pair stout, suddenly narrowed to 1 

 base, apex with two unequal spurs ; front tarsi not very long, 

 middle moderately long, hind very long, with basal-joint dis- 

 tinctly longer than second. 



9 . Differs in having the prothorax somewhat shorter, 

 with the sides more distinctly rounded, propy- and pygidium 

 larger and projecting to a greater length beyond the elytra,, 

 metasternum gently flattened in the middle, abdomen strongly- 

 convex throughout, and legs shorter. 



The punctures are larger on some species than on others, 

 but they are usually so obscured by scales that they cannot 

 be usefully employed. Where the surface has been abraded they~ 

 are seen to be rather wide, more or less circular, and shallow ; 

 on the elytra they usually appear like partially-connected 

 rings. Although the clypeus is always feebly notched at the 

 apex, from most directions it appears to be gently rounded 

 there. The sizes of the lateral tubercles on the propygidium 

 vary, and on some specimens they are longer and less distinct 

 than on others, but their differences are only of degree, and 

 their size is liable to apparent variation on abrasion, so that 

 they cannot be relied upon as distinguishing features. Of 

 the three large teeth on the front tibiae the two hinder ones 

 project outwards at almost right angles to the tibiae them- 

 selves, the apical one is at the usual angle ; between the teeth 

 there are usually feebly-rounded spaces, which sometimes as- 

 sume the appearance of feeble teeth. 



The following table is of males only, consequently scutel- 

 laris and quinquedentatu s and the species unknown to myself 

 are omitted from it : — 



A. Pygidium mucronate. 



a. Almost entirely glabrous glaber 



aa. More or less densely squamose. 



b. Elytra black mucronatus 



bb. Elytra reddish, the margins some- 

 times excepted, 

 c. With a transverse fasciculate 

 ridge near apex oL abdominal 



fovea apicalis 



cc. Without such a ridge castaneipennis 



