1902.] Catalogue of the Coleoptera of SoutJi Africa. 587 



outer margin is a series of setigerous punctures often asymmetrical 

 and varying from 7 to 8 ; scutellum ogival, slightly transversely 

 impressed at the base and a little broader than long ; elytra very 

 little wider at the base than tlie basal part of the prothorax, slightly 

 bi-sinuate below the humeral angle, and gradually ampliated laterally 

 from one-third to about three-fourths of the length, and not much 

 attenuate thence towards the rounded posterior part, the outer and 

 posterior margins are sharp, they are moderately convex, but more 

 so in the posterior part where there is a median supra-apical callus, 

 near the humeral angle there is also a conspicuous one which is 

 sometimes prolonged for one-sixth of the length as an elongate 

 raised surface, they have more or less deeply punctured strige, 

 geminate in the dorsal part and separated by smooth or punctured, 

 round or sharp costse, the striae of the median dorsal part do not 

 reach quite the apex, and the supra-lateral ones are interrupted on 

 the humeral callus, between the second and third dorsal costae the 

 space is somewhat broadening near the base and filled with numerous 

 punctures resolving themselves into one or two regular series at 

 some distance from the base ; the propygidium is partly covered by 

 the elytra, the latter is declivous or abruptly sloping and more or 

 less convex, and has a fringe of hairs along the inferior margin ; 

 the segment of the abdomen, except the sixth and seventh in the 

 male and the sixth in the female, has a transverse series of deep 

 setigerous punctures ; metasternum somewhat broad, usually with a 

 shallow median impressed line or depression ; mesosternum not 

 acuminate between the intermediate coxaB the anterior edges of 

 which as well as of the posterior ones are sharply carinate ; hind 

 trochanters with a lobate process ; anterior tibiae bi- or tri-dentate 

 and having a very distinct inner spur situated at some distance from 

 the point of insertion of the tarsi the joints of which are robust, sub- 

 triangular, spinose beneath and provided with two hinged parallel 

 claws the outer of which is a little shorter than the inner; this latter 

 is either simple in the anterior and intermediate tarsi, simple in the 

 anterior only, or cleft transversely in the male, but in all the South 

 African species known to me, except one (A. nigrovestita), the female 

 has the claw of both the anterior and intermediate tarsi cleft ; the in- 

 termediate and hind tibiae are compressed inwardly, slightly attenuate 

 at apex and have two slight, transverse bristly ridges on the outer 

 part. The livery of the South African species is of two sorts. They 

 are either completely more or less pale testaceous : the elytra are 

 either entii*ely or partly black and shiny, but without a metallic 

 sheen : or the upper side, and sometimes the whole body, is metallic 

 and either variegated with bronze-red, brown or black, or also 



