1908.] Catalogue of the Coleoptera of South Africa. 653 



slightly attenuate rounded laterally in the anterior part, nearly 



parallel thence to the slightly rounded lateral angle, impunctate ; 



scutellum ogival, impunctate ; elytra with regular series of round 



punctures but not striate, and with the interval between the first 



stria and the first row of punctures without punctures ; propygi- 



dium extremely finely aciculate, the two stridulating striae gradually 



diverging towards the apex ; pygidium convex, very closely plicatu- 



late punctulate along the base, the punctures stronger, more 



elongated and somewhat asperous on the lateral part ; except for 



that band of punctures the remaining surface is quite smooth ; 



anterior tibiae tri-dentate and without intermediate teeth or upper 



angular projection line. Not unlike a small example of H. arator in 



general form, but smaller and with the prothorax and elytra more 



parallel; the species is easily differentiated by the shape of the 



genital armature of the $ . It should follow H. beiranus. In the 



? the clypeal suture is interrupted in the centre, and there is an 



upper angular projection above the basal tooth of the anterior tibiae. 



Length 10J— 11 mm. ; width 5-5 f mm. 



Hab. Mozambique (Beira). 



Heteronychus beiranus, n. sp., 

 PI. XLVIIL, figs. 35, 36. 



Extremely like H. mosambicus, and might be easily mistaken for 

 a small example of this species, but it differs from it by the anterior 

 tibiae which are plainly angular, if not dentate, above the third out- 

 ward tooth ; the shape and punctuation of the elytra are almost 

 similar but only the four dorsal intervals are smooth, as far as the 

 declivity, the others are very distinctly sub-seriate punctate, and the 

 genital armature is quite distinct from that of H. mosambicus. This 

 species should follow H. dissidens. 



I may remark that in my diagnosis of H. dissidens (Catal. i., 

 p. 515) I stated that there is no serrate tooth between the basal 

 and second ones in the anterior tibiae ; I have ascertained since 

 that normally there is such a tooth. 



Length 8 mm. ; width 4 mm. 



Hab. Mozambique (Beira). 



Heteronychus inops, n. sp., 

 PI. XLVIIL, figs. 33, 34. 

 Male : Black, shiny ; size of H. mosambicus, and very closely 

 allied to it, but the clypeal carina is plainly produced triangularly 



