Bombyliidae (Diptera) from Central Africa. 645 
segments ; genitalia dark yellow ; venter dark, with black and pale 
hairs. Legs dark reddish, with black pubescence and black bristles. 
Wings with black veins ; discal cell twice as long as broad, narrowed 
towards the middle, obtuse at the end; first posterior cell little 
narrowed. The wings are blackened from the extreme base to the 
end of the first longitudinal vein; from here the border runs 
obliquely and sinuously to the vein dividing the second from the 
third posterior cell at the hind margin of the wing; apex of the 
first submarginal cell hyaline, as also the apical half of the second 
posterior cell ; a small hyaline oblique spot in the discal cell before 
its end; third and fourth posterior cells each with a hyaline spot 
near the hind margin, which are fused together and in contact with 
the spot in the discal cell; apex of the axillar cell subhyaline. 
There are small yellowish spots at the cross-veins, chiefly on the 
small cross-vein and on the base of the second longitudinal vein, 
which originates a little before it ; prediscoidal spot small, whitish ; 
small cross-vein placed before the middle of the discal cell. 
Tyre f, from Northern Nigeria, Zungeru, February 5, 
1910 (Dr. J. W. Scott Macfie) ; a single specimen. 
62. Lxoprosopa lacta, Loew (1860). 
A very well characterised and elegant species, distin- 
guished by the prevalent yellow colour of the body, the 
rounded and not projecting face, the brown and yellow 
pattern of the wings, showing broad pellucid spots on the 
cross-veins and two broad blackish bands fused together 
at the hind margin. 
A specimen from North Nyasa, Makongwa, February 12, 
1909 (Dr. J. B. Davey). 
63. Exoprosopa punctulata, Macquart (1840). (Plate L, 
fig. 21.) 
This species is, without any doubt, the same as that 
described by Loew under the name of LZ. rasa (1860). It 
represents the type of a natural group of closely allied 
species, with which are to be associated the following: 
E. major, batrachoides, stannusi and capnoptera. The 
characters of this group are :— 
Abdomen of conical shape, pointed at end; body elongate, short- 
haired, without black hairs on the pleurae, and without silvery spots 
or bands on the abdomen ; face little projecting; third antennal 
joint of conical shape, bearing a style not longer than itself; pro- 
boscis short. Wings rather narrow and long ; the vein dividing the 
TRANS. ENT. SOC. LOND. 1911.—PaRT IV. (JAN.) UU 
