154 Antials of the South African Museum. 
notum ; ventral stripe near the sternum and including all the coxae ; 
prosternum beneath yellow ; mesosternum with a large oval yellow spot 
beneath. Halteres brown, the knobs darker. Legs with the coxae 
and trochanters black ; femora dark brown, the tips black ; tibiae and 
tarsi black. Wings with a pale yellowish-brown tinge ; no stigma ; 
veins brown. Venation (Plate XI, fig. 18), 8c long extending about 
one-third to one-quarter the length of the long sector ; Sc^^ indistinct ; 
Rs very long ; -K^-h;, short, less than R.^ ! cross-vein r present but in- 
distinct, connecting with R^ ; basal deflection of -B^ + s and r-m about 
on a line ; basal deflection of -M"i + o obliterated ; cross-vein m lacking 
so that cell Mc, is undivided ; fusion of ilf., with Cu^ very extensive, 
Owj alone being about as long as the r-m cross-vein. 
Abdomen banded black and yellow, tigrine in appearance, the segments 
black with broad caudal margins of bright yellow ; hypopygium black. 
Habitat. — South Africa. 
Holotype, <$ , Hottentot-Hollands Mountains, altitude 4000 ft., 
Caledon, Cape Colony, 1915 (Barnard). 
Type in the South African Museum. 
This interesting little fly is not like the typical memliers of the 
sub-genus in the manner that cell 1st M^ is open. The very short fork 
of C»i and M^ is sti'ongly suggestive of the possibility of the loss of one 
of these veins by complete fusion to the wing-margin, a very rare con- 
dition in this family of flies, the only other comparable case known to 
the author being certain species of the Neotropical genus PnJymera. 
Gen. MONGOMA, Westwood. 
1881. Trans. Ent. Soc. Loud., p. 364. 
MoNGOMA EXORNATA, Bergroth. 
1888. Ent. Tidskrift, vol. 9, pp. 135, 136 {TrentepohUa) . 
This interesting fly has a rather extensive range in Eastern and 
South-Easteru Africa, as given by the author in an earlier paper 
(Can. Ent., vol. 44, p. 204, 1912) ; a specimen in the collection from 
the Bluff, Durban, Natal, August, 1915 (Marley). 
Gen. CONOSIA, van der Wulp. 
1880. Tijd. V. Entomol., vol. 23, p. 159. 
CoNosiA iRRORATA, Wiedemann. 
This is a very widely distributed species that is found practically 
throughout the tropics of the Old World. Five (5", 9, M'fongosi, 
Zululand, February, 1914 (W. E. Jones). 
