Coleoptera from East Africa. 377 



Dt'cellachilus Woodi, sp. n. 



Black, dull above, shining beneath. Head shlnin<T, 

 strongly piuictmed. Antennaj and palpi pitchj. Thorax 

 convex, dull, broadest just before the base, very slightly 

 narrowed anteriorly for some distance, and then rounded olF 

 to the eyes ; the posterior angles rounded ; the margins 

 beset witli short black hair. Elytra orange-yellow, with the 

 suture and margins black; the black at the suture is broad 

 for two thirds its length and tlien narrows to the apex : the 

 black exterids along the base in some examples, and some- 

 times there is a narrow edging of black at the apex. 



Long. 30 mm. 



Hab. Usagara, German E.ist Africa {Rev. A. N. Wood). 



Bettonu, gen. nov. 



Closely resembles Compsocephalas, but the anterior tibice 

 are nearly alike in both sexes, of normal form, armed exter- 

 nally with three acute teeth ; the male has sometimes o.ie or 

 two small teeth on the inner lower side. 



c? • — Forehead with a small tubercle ; a small ridge above 

 each eye and a short, transverse, lamelliform horn in front; 

 the lateral margins of the clypeus on each side of this horn 

 flattened, arcuately rounded, as in Compsocephalas. Thora.x 

 normal, as in the female. Prosternal process scarcely promi- 

 nent, obtusely rounded. 



Bettonia mutabilis, sp. n. 



Head pitchy red in front, obscure greenish at the back. 

 Thorax, scutellum, and eljtra dull, the former obscure greyish 

 or bluish green, the elytra brownish purple. Pygidium 

 rather thickly punctured with transverse punctures; in 

 the male each puncture bears a fulvous hair. Underside 

 shining, entirely blue or variegated with green and purple. 



(J . — Ilead with a small tubercle on the vertex. Ciypeal 

 horn erect, one third broader than high, a little wider at the 

 apex rhan at the base, closely punctured, gently emarginate 

 at the apex. Anterior tarsi not conspicuously longer than in 

 the female. 



$ . — Head strongly punctured. Forehead with a very faint 

 indication of the tubercle. Clypeus subquadrate, with angles 

 rounded ; the margins slightly reflexed, the anterior margin 

 gently sinuate. 

 Long. 25 mm. 



JIab. Lagari, British East Africa {C. Steuart Betton). 

 Anu.& Mag. N. Hist. Ser. 7. Vol. xv. 2(i 



