1908.] Catalogue of the ColeojJtcra 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 

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

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



Length 10^-11 mm. ; width 5-5f 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. mosambictis. This 

 species should follow H. dissidens. 



I may remark that in my diagnosis of II. 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 



