( 141 ) 



Length, lOi mm. 

 Hab. Uiteubage, Natal. 

 One S. 



Clostrocera tricolor (1840) Gu6r., Rev. Zool. p. 108 (Senegal), is an Apiogaster 

 and closely allied to ruJii-erUris (IS.'io) Perr. 



24. Apiogaster posticum spec. uov. 



S ? . Black, glossy, with long pale hairs all over ; prothorax (e.xcept a])ieal and 

 basal edges), incrassate portion of femora, foretibia and in ? middle of midtibia, 

 rufons red ; elytra ochraceons, apical fifth or sixth and extreme basal edge black. 



Depression between antennal tubercles deep, extending to middle of frons ; 

 occiput reticnlate behind ; frons not sulcate in middle. Prothorax much longer 

 than broad in middle, strongly convex above, especially before basal constriction ; 

 jiunctures umbilicate (with raised anterior edges), smaller than the interspaces, 

 sides almost impunctate. Elytra shaped as in the other species of the genus ; 

 coarsely punctured, the punctures, however, not very close together laterally, 

 shoulder and apex almost smooth ; apex of each sinuate, bidentate. Prosternum 

 minutely wrinkled transversely ; meso-metasternum punctate ; abdomen with 

 widely dispersed punctures. 



Length, 8|— II mm. 



Hab. Mpuapua, German East Africa. 



One pair. 



Differs from A. similis (1902) Gahan in the prothorax being black only at the 

 basal and apical edges, in the elytra being ochraceous for the greater part, and in 

 the scape of the antenna not bearing a snbapical transverse carina. 



25. Apiogaster opacum spec. nov. 



Similar to the preceding in size and colour. Black, with very little gloss ; 

 covered with a short grey pubescence, which is rather dense on the under surface ; 

 prothorax rufous red, except basal and apical edges and two discal dots, which are 

 black ; incrassate portion of anterior femur rather paler than prothorax ; jiroximal 

 fonr-fifths of elytra ochraceous rufous ; incrassate portion of middle femur brownish 

 black, glossy like the corresponding portions of the other femora. 



Puncturatiou dense all over the upperside and sterna ; abdomen very densely 

 shagreened ; prosternum transversely wrinkled. Front of head with an anteriorly 

 abbreviated mesial sulcus ; antennal tubercles higher than in posticum. Pronotum 

 densely reticulate ; very strongly convex in middle before basal constriction. 

 iScutellum black, more strongly bilobate than in the previous. Elytra densely 

 punctured to the very end ; a trace of a mesial costa ; apex sinuate, bidentate. 



Length, 9 mm. 



Ilab. Abyssinia. 



Two specimens in the British Sluseum, one without locality in the Tring 

 Museum. 



The African Cerambycinue allied to Chjttis (auct.) and variously described as 

 Cb/tua, Clytanthus, etc., may provisionally be grouped as follows : — 



