1937 ] 
Exotic Syrphid Flies 
29 
brown apices, white pilose. Tibiae yellowish brown, darker 
in the middle. Tarsi dark brown to black. Hind femora very 
slender. Wings quite hyaline, stigma yellow, with proximal 
brown spot. 
Length 9.5 mm. 
One female. Mt. Kenia, British East Africa, Sept. 8 (G. M. 
Allen and G. Brooks) . Type in the Museum of Comparative 
Zoology. 
This interesting species is characterized by the highly 
vitreous black color, flat abdomen, remarkably narrow, slen- 
der grey pollinose bands or spots. 
Pipunculosyrphus n. gen. 
Head hemispherical. Eyes very large. Vertex small, 
compressed until knife like, the anterior ocellus not much 
remote and the vertex not swollen. Occiput narrowly visible 
in profile, except near the top, its collar of hairs short, but 
conspicuous, single rowed, and Baccha- like. The eye mar- 
gins strongly concave in the middle, their facets enlarged 
above in the male. Antennae set in middle of head in profile. 
Short, third joint orbicular. Arista slender, longer than the 
antennae. Front swollen, face below antennae rather con- 
cave, tubercle conspicuous, abruptly rising and declining. 
Face retreating past the tubercle. The cheeks inconspicu- 
ous. Sides of face parallel and close together. Thorax 
slightly longer than broad, convex. The humeri hidden by 
the head, bare. The mesopleurae and dorsum practically 
without pile. Scutellum is long with long bristles on its rim 
and a ventral fringe is present. 
Abdomen long and slender, about five times as long as 
wide with parallel sides. First segment short, laterally in- 
flated and strongly convex. Its extreme base equipped with 
a vertical fringe of erect hairs against the metanotum which 
is inconspicuous. Abdomen dark with yellow bands or pairs 
of spots. Hind femora very slender and long. Hind tibiae 
equally slender, not quite as long. The basi tarsi more than 
half as long as tibiae. The mid femora flattened basally. 
Wings very elongate, being more than three times as long as 
wide. Alulae absent. The marginal cross veins quite sig- 
moid. Vena spuria prominent. 
Genotype: Pipunculosyrphus globiceps n. sp. 
