28 SYRPHID#. 
female, but with only two black bands, the third and the fourth 
ie wanting; genitalia reddish; all the tarsi black. 
Type 3, Johannesburg, Transvaal, 1906 (4. J. Cholmley); a 
female from British East Afri ica, M’bagori’s Village, edge of Kenia 
Forest, 5,000 ft., 12.11. 1911 (7. J. Anderson). 
The singular Aaa of this species, ranging from South 
Africa to Italy, i is paralleled by that of some other Diptera, as, for 
example, Evistalis teniops and quinquelineata, Stomatorrhina 
lunata, ete. 
19. Asarcina eremophila, Loew (1857). 
A large species, distinguished by the broad black facial stripe, 
which, however . does not reach the base of the antennz, and by 
the second and third abdominal bands being more or less constricted 
in the middle. 
The face of this species does not project much, the margins of 
the buccal cavity being perpendicular; the antennz are ‘widely 
separated. 
A female specimen from British East Afriea, near Crater Lake, 
N. of Mount Kenia, 5,700 ft., 15.11.1911 (7. J. Anderson). 
20. Asarcina rostrata, Wiedemann (1824). 
This species may be recognised by the very projecting face, the 
margins of the buccal cavity being produced forwards, and by the 
facial stripe reaching the base of the antennze. The facial tuberele 
is very broad. 
A specimen from Durban (/. Muir); this species seems to be 
confined to the south of the Region. 
21. Asarcina hirsuticeps, sp. n. 
Length of body 14 mm. ; of wing 12 mm. 
ve deen from any other as species on account of its 
hairy eyes and its exceedingly produced face, which has a very 
broad black stripe and is clothed on the sides with ver y long black 
hairs. 
The line of contact of the eyes as long as the vertical triangle 
(1 mm.), wholly covered with long and dense white hairs ; ns 
unspotted, not tuberculate, Cidthedt with long black hairs ; lunula 
broad, yellow; antenne widely distant ee each other at the 
base, more so than in the allied species, the first joint moderately 
long, the third black, except on the lower basal corner which is 
yellowish ; arista black, bare ; face very broad and very produced, 
yellow ish-dusted on the sides, where it is clothed with abundant 
and long black hair; facial tubercle very broad, rounded, hori- 
zontal, the black stripe broader than its ‘sides, but not extending 
above the base of antenne ; peristoma broad, wholly whitish yellow. 
Thorax yellowish on the sides; scutellum yellow, with metallic 
