196 Mr. G. C. Champion on various African 



aspect, the upper and lower edges of the cavity arcuately 

 dilated at the middle, the dilated upper portion extending 

 for some distance inward, sinuate-plicate, and very deeply 

 excavate, the lower portion narrower and less prominent. 



? . Antennae very much shorter and a little stouter ; legs 

 •wholly metallic. 



Length 6±-7, breadth 2 :i 9 -3l mm. (<??.) 



Hab. E. Africa: Nandi Escarpment [type], Yala River, 

 south edge of Kakumga Forest, and Valley of the Upper 

 Nzoia River, N. Kavirondo, alt. 4800-5800 ft. (S. A. Neave : 

 v., vi. 1911); Luwumbu Valley, Upper Luangwa, alt. 

 2500-h500 ft. [vii. 1910], and Serenje District, alt. 4500 ft. 

 [xii. 1907], bothinN.E. Rhodesia (S. A. Neave); Kashitu in 

 N.W. Rhodesia (H. C. Dollman: xii. 1914). Central 

 Africa : Kundelungu, Belgian Congo (Dr. Bequaert, in Mus. 

 Congo Beige : S )• 



Numerous examples, including seven males, two of which 

 are from Rhodesia. These males differ from the same sex 

 of the Usagara insect here referred to H: spectabilis, Ancey, 

 in having the antennae more strongly serrate, the prothorax 

 more rounded at the sides, and the lamella on the upper 

 inner edge of the intermediate tibiae broader and more 

 prominent than the lower one, the inner margin only of the 

 former testaceous. 



19. Hapalochrus cochleatus, sp. u. 



J 1 . Very like, and possibly a form of, H. bilamellatus, but 



differing chiefly in the development of the intermedia! e 



tibia? (pi. VIII. fig. 14), the lower lamella of which is larger 



and more angular, and the upper one narrow, mor or less 



annulate proximally, and sinuato-plicate and deeply sulcate 



above ; the antennas, too, are a little longer, and ha\e the 



apical joint strongly curved and more elongate. 



Length 6^-7, breadth 2*-3l mm. (<? ? .) 



Hab. E. and W. Central Africa, Mwengwa [type] and 



Kashitu, N.W. Rhodesia (H. C. Dollman : xi., xii. 1913, 



xi.,xii. 1914, i. 1915: <$ ? ), Serenje, N.E. Rhodesia (S. A. 



Neave : xii. 1907) ; Babua Bondaye, Kongola Kunde, 



Kamerun (Mus. Brit.); Mufungwa Sampwe (Dr. Bequaert), 



Sankisia, Belgian Congo (Dr. Rodham, in Mus. Congo 



Beige: <?). 



Twenty specimens, including males from each district. 

 In this insect the two lamella of the <$ intermediate tibiae, 

 viewed from above, appear to be placed one before the other, 

 the narrow angulate portion of the upper one issuing at 



