332 Mr. G. C. Champion on the 



Var. a. The scutellum more or less infuscate and the 

 apical half of the elytra black. ( cJ ? .) 



Hab. E. Africa, W. slopes of Kenya on Meru-Nveri 

 road (alt. 6000-8500 ft.) (S. A. Neave) ; Nyasalaxd, 

 Valley of Rukuru, Karonga district (alt. 2000-4000 ft.) 

 {S. A. Neave). 



Var. yS. The prothorax and scutellum black, the prothorax 

 sometimes rufo-variegate or fulvous with an indeterminate 

 black patch on each side of the disc. ( (J $ .) 



Idgia tripartita, Pic, Bull. Soc. Ent. Fr. 1912, p. 300 \ 



Hab. E. Africa^ (C S. Betton), 30 miles from Magadi 

 Junction (F. G. Hamilton), Kibwezi (alt. 8000 ft.), Nairobi 

 to Fort Hall Road (alt. 4500-5000 ft.) {S. A. Neave) ; 

 N. Nigeria, Panyam in Banchi Province (G. F. Fox). 



About 200 examples of this species are contained in the 

 Museum collection, including specimens from the two 

 localities quoted by Gerstaecker, Mombasa and Natal. The 

 variety tripartita was received with the typical form from 

 Kibwezi, five of the thirty examples before me being inter- 

 mediate, having the prothorax partly red. The long series 

 from the slopes of Kenya (6000-8500 ft.), and those from 

 the Karonga district of Nyasaland are also darker than 

 typical diviidiata, having the apical half of the elytra and the 

 scutellum black, these specimens (39 ? ^ , ^ <S (S) forming 

 a transition to the still darker tripartita. Some of the 

 southern examples ((5* ? ) have the elytra distinctly angulate 

 at the sutural angle, a character apparently of no great 

 importance. Males of each form have been dissected, 

 showing a similar genital armature. The tuft of long hairs 

 behind the eyes mentioned by Pic in his description of 

 7. tripartita is to be found in all the allied African species 

 known to me. His /. nigricoUis (1906), from Sierra Leone, 

 is not represented in the collections at the Museum. 



3. Idgia terminata. 



Idgia terminata, Cast. Hist. Nat. Ins. Coleopt. i. p. 275 (1840). 



$ . Elongate, rather narrow, shining, thickly pubescent, 

 and also set with scattered, curled or erect, blackish bristly 

 hair?, those on the elytra seriately arranged ; testaceous, 

 the head (the labrum excepted), joints 5-11 of the antennae, 

 a large patch at the apex of the elytra, the knees, tibiae, 

 and tarsi black. Head as wide as the prothorax ; eyes 



