Bombyliidae (Diptera) from Central Africa. 609 
great doubt to this species, A male from North Nyasa, 
Wovwi River, December 24, 1909 (Dr. J. B. Davey); the 
eyes touching, A female, wholly denuded, from North 
Nyasa, October 1909 (Dr. H. S, Stannus). 
6. Systoechus melampogon, sp. nov. 
3 ¢. Length (6 specimens) 7 to 9 mm. ; length of proboscis 
4 to 44 mn. 
Near S. mixtus, Wied., but smaller and with black hairs on the 
face and hyaline wings. Head black, produced ; eyes of the ¢ very 
closely approximated, but not touching; frons and face in the ¢ 
with the hairs entirely black, in the 9 with some yellow hairs 
intermingled on the frons and upper portion of the face. Antennae 
black, the third joint not attenuated ; terminal bristle small, the 
basal joint not distinct as in S. mixtus. Proboscis black, short. 
xround colour of thorax velvety black in the male, less velvety in the 
female; it is densely clothed with erect, dark yellowish hairs of 
equal length, without black bristles ; sterna and pleura with similar 
hairs ; the hairs in the female are of a paler tint. Halteres whitish ; 
squamae brown with yellow hairs. Scutellum dark red, black at the 
base and in the middle. Abdomen black, sometimes reddish at 
the sides; the hairs are of the same colour as on the thorax ; black 
bristles well developed. Legs yellow, the basal part of the femora 
a little blackened in the male: coxae and trochanters black ; tarsi 
black at tip; the pubescence and hairs are white, the bristles 
yellow, also those on the hind femora, Wings wholly hyaline, with 
a small yellowish patch at the base; veins brown, the first black ; 
basal comb small, mostly yellow, with a few black bristles. 
TYPE ¢ and two other specimens from Southern Nigeria, 
Oshogbo, February 27 and 28 (J. J. Simpson). TYPE 2 
and another specimen from the same locality and taken by 
the same collector, February 28, 1910, and March 1, 1910; 
another ¢ from North Nyasa, Fort Hill, October 2@, 1909 
(Dr. J. B. Davey). 
7. Systoechus ctenopterus, Mikau (1796). 
A single 2 specimen from North Nyasa, on the road 
fiom Karonga to Fort Hill, near Lufira River, May 30, 
1909 (Dr. J. B. Davey), which agrees very well with our 
South European specimens. 
3. Anastoechus, Osten-Sacken (1877). 
This genus has not been previously recorded from 
Tropical Africa; the species have the same habits and 
importance as those of the preceding genus. 
