290 Transactions Smith African Philosophical Societ//. [vol. xiii. 



traces of an inner lobe ; last joint of maxillary palps fusiform, twice 

 as long as the third, and not impressed laterally, maxillae laminate 

 and bifid at the tip ; labium narrow, transverse, not sub-cordate, not 

 incised ; clypeus separated from the head by a very faint suture, 

 either diagonally narrowed laterally and truncate in front (Apogonia), 

 or strongly aculeate and incised in the centre, or even bi-lobate in 

 the male (Catagonia, Ceratogonia), bead large, ryes large, divided in 

 the anterior part by the canthus of the genae which are, however, 

 fused with the clypeus ; antenna; 10-jointed, the first and second 

 joints are as long as the rest of the pedicel, much thicker than the 

 other joints which are small and monilifonn, the three-jointed club is 

 elongate in the male, ovate in the female ; prothorax twice as broad 

 as long, anterior angles very sharp, posterior ones angular, anterior 

 margin not fringed with hairs; scutellum ogival ; elytra broader than 

 the prothorax and with the humeral angles sharp, moderately convex, 

 costulate, not callose behind, covering the propygidium or the greatest 

 part of it ; pygidium small, cordate, declivous ; abdomen convex, the 

 segments fused, pectus not hairy ; anterior tibiae hi- or tri-dentate 

 outwardly, and with a very distinct inner spur {Catagonia Apogonia), 

 or without (Ceratogonia), posterior ones without a distinct oblique 

 ridge, tarsi long, hairy underneath, especially in the male, in which 

 sex the two basal joints of the anterior tarsi are somewhat dilated at 

 the apex, especially the second (Apogonia), or the three basal joints, 

 the second in particular, very broadly dilated in all the tarsi (Cata- 

 gonia, Ceratogonia), claws somewhat robust, deeply cleft at the apex, 

 the lower tooth as arcuate as the upper, nearly as long, and slightly 

 broader. 



The genus is represented in India, Ceylon, Borneo, Java, Sumatra, 

 &c. It occurs also in East and West Africa, and five South African 

 species are now known. 



Key to the Species. 

 A-. Anterior tibise tri-dentate. 



B. Clypeus narrow in both »'xcs, truncate laterally, straight at 



apex ; anterior tibise with an inner spur in both sexes .. .. Apogonia. 



« . Punctures on the elytra round, intervals very little raised 

 in the male, smoother in the female. 



Testaceous or ferruginous with a metallic sheen .. .. citrtula. 



Dark hronzc, very shiny imirroba. 



o*. Punctures on the elytra very deep and the intervals cori- 



uginous tinge mashona. 



