36 Mr. R. E. Turner on 



the combined lengtl) of the two basal joints of the flagellum. 

 13a>al joint of fore tarsus with eight spines. Median segment 

 at least half as long again as the scutellum, without a 

 longitudinal sulcus on the dorsal surface. Sternites sub- 

 opaque, very closely and finely punctured, with long sparse 

 l)ubescence. Seventh tergite very broadly rounded at the 

 apex, clothed with silver pubescence, slightly tinged with 

 gold. Eighth sternite broadly rounded or subtruncate at 

 the apex, the angles not produced. 



Hab. Nyasaland, S.E. shore of Lake Nyasa, between 

 Fort Maguire and Fort Johnston (S. A. Neave), March. 



42. Tachytes inexorabilis, sp. n. 



$. Iviger; fronte clypeoque argenteo-pilosis ; thorace segmentoqiie 

 mediauo cinereo-pilosis ; segraeiitis dorsaiibus 4 basalibus fascia 

 apicali argenteo-pubesceutibus ; tarsis fusco-ferrugiueis ; calcari- 

 bus paliide ferrugiueis ; tegulis testaceis ; alis byalinis, basi 

 pallidissiiue flavo-tinctis, venis ferrugineis ; area pygidiali rufo- 

 t'usco-setosa. 



cJ . Feminaj similis : segraento septimo dorsali subargeuteo-pubes- 

 cente. 



Long., 2 14 mm., S 12-14 mm. 



? . Clypeus broadh^ rounded at the apex ; vertex finely 

 and closely punctured, with a few larger punctures ; eyes 

 separated on the vertex bj a distance equal to the length of 

 the second joint of the flagellum plus half of the third joint. 

 Galea rather short, broadly rounded at the apex. Scutellum 

 distinctly punctured ; the median segment more than half 

 as long again as the scutellum. Second sternite subopaqne, 

 very minutely and closely punctured ; pygidial area broadly 

 triangular, subacute at the apex. Tinrd cubital cell ex- 

 tending very little further than the radial cell; the distance 

 between the recurrent uervures on the cubitus greater than 

 usual, fully equal to the third abscissa of the radius. Basal 

 joint of the fore tarsus with six spines. 



(J. Seventh tergite broadly rounded at the apex; eighth 

 sternite rather shallowly emarginate, the teeth of the apical 

 angles blunt. Eyes separated on the vertex by a distance 

 about equal to the length of the two basal joints of the 

 flagellum. 



Hab. Transvaal, Johannesburg (A. J. Cltolmletj) ; Natal, 

 Howick (J. P. Cregoe). 



Very near transvaalensis, Cam., but the pygidial area is 

 much more broadly triangular and the pubescence on it 

 coarser. The condition of Cameron's type, however, is so 



