South African Coleopterous Fauna. 281 



to C. grandiceps, Boh., but shorter, and with the prothorax less 

 impressed laterally above the base. 



Length 7^ mm. ; width 3 mm. 



Hab. Natal (Colenso). Both sexes were captured at Hlangwana 

 by Dr. G. B. Longstaff. 



Gen. OMOSTROPUS, Per. 

 Omostkopus simplex, n. sp. 



Niger, nitidus, oblongus, nonnihil angustus, palpis antennis pedi- 

 busque sub-rufescentibus ; caput leve, ad suturam frontis utrinque 

 late punctatum, labro nigro ; prothorax levis, longitudine nonnihil 

 latior, ad tertiam partem longitudinis lateraliter angustatus, deinde 

 fere rectus angulo basali acuto, supra convexiusculus intra basin 

 utrinque impressus, ubi punctis nonnulis insculptus ; elytra pro- 

 thorace nonnihil angustiora, oblonga, anguste profundeque striata, 

 interstitiis planis. 



Allied to 0. vicarius, Paring. ; the difference between the two 

 consists in the prothorax being slightly more ampliate in front in 

 0. simplex, and in the intervals of the elytra being slightly more 

 plane and narrower than in 0. vicarius. I have, however, seen one 

 example only of 0. simplex, and it might prove to be only a varietal 

 form of 0. vicarius. 



Length S^ mm. ; width 3 mm. 



Hah. Natal (Colenso). Dr. G. B. Longstaff. 



Omosteopus egenus, n. sp. 



Eufo ferrugineus, capite, prothoraceque disco nonnunquam 

 obscuriore, palpi, antennae pedesque pallide testacei ; labrum ferru- 

 gineum, caput impunctatum, leve, impressione supra oculari puncti- 

 formi ; prothorax convexiusculus, longitudine baud latior, lateraliter 

 antice sensim ampliato rotundatus, postice fere a medio leviter 

 attenuatus baud sinuatus angulis acutis, basi apice nonnihil an- 

 gustior, in medio anguste canaliculatus, disco ab apice longe ultra 

 medium levigato, postice basi tota late crebre irregulariter punctata ; 

 scutellum minimum, impunctatum ; elytra basi prothoracis lati- 

 tudine maxima nonnihil latiora humeris acutis, recta, versus apicem 

 conjunctim rotundata, modice convexa, lineato striata interstitiis 

 levibus, fere plana. 



Long. 9 mm. ; lat. 3 mm. 



Hah. Southern Rhodesia (Bulawayo). G. A. K. Marshall. 



