SYRPHUS. 33 
A male specimen from British Kast Africa, E. side of Aberdare 
Mountains, 7,300 ft., 24.11. L9LL (7. J. Anderson) ; a female from 
Blantyre, Nvasaland (Dr. J. HE. S. Old). 
(c) melas, var. n. 
3 Q. Length 10 mm. 
This form, which may be perhaps considered a distinct species, 
is characterised by its prevalent black coloration and by its broader 
jowls. 
Frons of male entirely black (in the two preceding forms it is 
yellowish grey towards the base); face grey, with strong bluish 
reflexions, long black hair and broad black median stripe; peri- 
stoma broadly black; abdomen shining black, with a less broad. 
yellow band on the third segment alone ; legs black, the tibixe dark 
reddish ; wings a little infuscated towards the basal half. 
The female has a broad grey peristoma, which bears a black 
stripe as in capensis; thorax duller, almost dullish grey ; the rest 
as in the male. 
Type 3 and type Q from British East Africa, the former from 
the EH. side of Aberdare Mountains, 7,300 ft., ii. 1911, the latter 
from N. of Mt. Kenia, 8,300 ft., 18. ii. 1911 (7. J. Anderson). 
25. Syrphus claripennis, Loew (1858). 
Distinguished by its clear wings, whitish abdominal bands, and 
paler head and legs. 
Very near capensis, but differing in the pterostigma and the 
want of a genal black stripe. J think that the present species is 
the same as dufersectus, Wiedemann (1824), chietly on account of 
the fact that 1t seems to be very common in South Africa. 
A single male specimen from Yala Bridge, N. Kavirondo, British 
East Africa, 24. vii. 1911 (C. W. Woodhouse). 
26. Syrphus hirticeps, Loew (1858). 
Distinguished by its prevalent dark coloration on head, abdomen, 
legs, and wings. 
I am in doubt if the specimens before me belong to the same 
species as described by Loew from Nubia; they agree well enough 
with the description, but the bands on fourth and fifth abdominal 
segments are wanting, and that on the third is but little developed ; 
the thorax is dullish. 
A male from Blantyre, Nyasaland Protectorate, v. 1910 (Dr. JJ. 
ES. Old); another male from Uganda, north spur of Ruwenzori, 
27. 1.1912 (HZ. B. Owen). 
27. Syrphus cognatus, Loew (1858). 
Very like corolle, but distinguished in the male by the third 
and fourth abdominal segments being almost entirely yellow, with 
only a dark brown hind border, 
D 
