338 Dr: C. P3 Alexander on 
coloration of the body greyish; halteres long and slender ; 
fore femora dark brown, the other femora paler. 
Female.—Length 7:8-8'4 mm. ; wing 9-10 mm. 
Rostrum rather long for most species of this genus of 
flies, about equal to half the length of the head or to the 
antennal scape, dark brown, including the palpi. Antenne 
dark brown, the flagellar segments long-oval, with a short 
white pubescence and a few curved verticils. Head black, 
grey-pruinose. 
Thorax dark grey, the prescutum with the stripes in- 
distinct or lacking. Halteres long and slender, pale, the 
knobs brown. Legs with the cox small, dull yellow, 
the outer face of the fore coxe infuscated ; trochanters pale 
yellowish brown ; fore femora dark brown, with only the 
extreme base pale; middle and hind femora yellowish ; 
tibie light brownish yellow, the tips narrowly darkened ; 
tarsi dark brown. Wings very long and narrow, somewhat 
as in the Holarctic Dicranomyia longipennis (Schummel), 
pale yellowish grey, the stigma and veins pale. Venation: 
Sc short, Sc; ending about opposite or slightly beyond the 
origin of Fs, Sc, removed a short distance from the tip of 
Sc,, the latter alone being about equal to two-thirds the 
basal deflection of Cu,;; basal deflection of R,,, about 
one-half the sector; basal deflection of Cu, far before the 
fork of M, the fusion of M and the deflection of Cu, being 
usually about one-half the length of the latter alone ; cell 
2nd anal long and narrow, conforming to the elongate shape 
of the wing. 
Abdomen dark brown, the ovipositor yellowish horn- 
colour. Tergal valves of the ovipositor slender, divergent, 
gently upcurved ; sternal valves much higher, compressed, 
the tips subacute. 
Hab. Rhodesia. 
Holotype, ¢ , Salisbury, Mashonaland (G. A. K. Marshall). 
Paratopotypes, 3 2. 
Type in the collection of the British Museum ; paratypes 
in the collections of Cambridge University and the writer. 
Dicranomyia fuscopleura, sp. 0. 
Size very small (wing of male about 4 mm.) ; antenne 
dark brown, the flagellar segments with a short basal 
pedicel ; mesothorax dull brownish yellow, the pleura with 
a broad, dark brown longitudinal stripe; wings faintly 
tinged with grey, the stigma brown; vein Se long, cell 
lst M, closed. 
