232 ^Ir. J. R. Malloch on Exotic Muscaridse. 



orbit with four bristles, the upper two directed backward. 

 Fourth tergite without bristles at apex, the tip but little 

 depressed in centre. Hind tibia with one antero-ventral, 

 two antero-dorsal, and two postero-dorsal bristles. 



Length 6'5-7*5 mm. 



Six males, Ngare Narok^ Masai Reserve, Kenya Colon}^ 

 31. xiii. 1913, about 6000 feet {Capt. A. 0. Luckman) ; 

 one female, west of Mt. Kenia, 19,20. ii. 1911, 6500- 

 7250 feet {T. J. Anderson) ; one female, North Nyasa, 

 30. viii. 1909 {Dr. J. B. Davey). 



Idiopygus villipes, sp. n. 



Male. — Blackj marked as hirtipes. The legs entirely 

 blackish. 



Differs from hirtipes in having the ej^es separated by over 

 one-third of the head-width and the orbits, as stated in the 

 key. The intra-alar bristle is absent. Fore femur with 

 long fine hairs at base of postero-ventral and on ventral 

 surface, and some long bristles on apical half of postero- 

 ventral surface ; fore tibia with the ventral hairs much 

 longer than the tibial diameter, no posterior median bristle 

 present; mid-legs missing; hind femur thickened, with 

 long fine hairs ventrally and some long bristles on apical 

 half of antero-ventral surface; hind tibia not dilated, 

 slightly produced at apex ventrally, with numerous fine 

 hairs as on fore tibia, and two antero-dorsal and two 

 postero-dorsal bristles. 



Length 7u mm. 



Type, Lagari, Kenya Colony, 1. iii.-21. v. 1900 (C. S. 

 Betton). 



A female which is either that of this species or trimaculata, 

 Stein, has the thoracic characters of this species. The 

 mesosternum is carried downward more pronouncedly than 

 in the male of villipes, a character which would indicate a 

 greater protuberance in the male of the species to which it 

 belongs, which leads me to believe that it is trimaculata. 

 The specimen was taken on Mt. Mlanje, Nyasaland, 27. xi. 

 1912 (S. A. A'eare). 



Idiopygus Mrtiventris^ sp. n. 



Male and female. — Black, marked as in the two preceding 

 species, but the median vitta on mesonotum is not continued 

 on to disc of scutellum. Legs entirely black. 



Male. — Frons as in hirtipes, but with a long bristle on 

 each orbit in line with anterior ocellus. Anterior intra- 



