156 Annals of the South African Museum. 



Originally described by me from N.W. Rhodesia in my paper on 

 the Bombyliidae of the British Museum, there is a specimen from 

 Salisbury, Arcturus, 1916 (Dr. Melle). 



EXOPROSOPA (EXOPROSOPA) BLUTA, Loew (1860). 

 Dipteren-Fauua Siid-Afrikas, p. 227, pi. ii, fig. 5. 



Very closely allied to the following one, but distinguished by the 

 smaller size, by the black legs and by the faint iufuscation on the 

 cross-vein dividing the discoidal from the second basal cell. 



Stellenbosch (Cape), 1888 (L. Peringuey) ; Ceres (Cape), Matroos- 

 berg, 5000 ft., January, 1917 (It. M. Lightfoot); another example 

 9 nun. in length from Zululaud, M'Fougosi, December, 1914 (W. E. 

 Jones). 



EXOPROSOPA (EXOPROSOPA) HEROS, Wiedemann (1819). 



A species of great or medium she, distinguished by the broad 

 fuscous patch of the hind half of the wings. 



I think that the form described by Loew (Dipt. Sudafrik. p. 334, 

 pi. ii, fig. 33) answers to the variety mentioned by Wiedemauu, and 

 I have named it loewiana ; I think, moreover, that E. caffra, Macquart 

 (nee Wiedemann) is also the present species, which seems to be very 

 common in South Africa. 



There are numerous specimens, varying in length from 10 to 20 mm. 

 Stellenbosch (Cape), 1887 (L. Periuguey) ; Berg River ; Laiugsburg, 

 November, 1910 (R. M. Lightfoot) ; Hex River, January, 1885, named 

 " keros " by Bigot; O'Okiep (Cape), 1885 (L. Pcringuey) ; Barberton, 

 Transvaal, November, 1911 (H. Edwards); Spektakel and Springbok, 

 Namaqualaud (Cape), November, 1890 (R. M. Lightfoot) ; M'Fougosi, 

 Zululand, December, 1911 (W. E. Jones); Otjivaraugo, Damaraland, 

 January, 1920 (R. W. E. Tucker). 



EXOPROSOPA (EXOPROSOPA) DUX, Wiedemanu (1828). 



Probably only a variety of the preceding, distinguished by the want 

 of the fuscous patch at the hind half of the wing. 



Some specimens from Hex River (Cape), December, 1884 (L. 

 Pcriuguey), and Bush mankind, Henkries (Cape), October, 1911 (R. M. 

 Lightfoot) . 



