338 Dr. C. P. Alexander on 



coloration of the body greyish ; lialteres long and slender ; 

 fore femora dark brown, the other femora puler. 



Female. — Length 7-8-8-4 mm. ; M-ing 9-10 mm. 



Kostrum ratlier long for most species of this genus of 

 flies, about equal to half the length of the liead or to the 

 antennal scape, dark brown, including the palpi. Antennne 

 daik brown, the flagellar segments long-oval, with a short 

 while pubescence and a few curved verticils. Head black, 

 grey-pruinose. 



Thorax dark grey, the prrescutum with the stripes in- 

 distinct or lacking. Halteres long and slender, pale, the 

 knobs brown. Legs with the coxje small, dull yellow, 

 the cuter face of the fore coxae infuscated ; trochanters pale 

 yellowish brown ; fore femora dark brown, with only the 

 extreme base pale ; middle and hind femora yellowish ; 

 tibiie light brownish yellow, the tips narrowly darkened ; 

 tarsi dark brown. Wings very long and narrow, somewhat 

 as in the Ilolarctic Dicranomyia longipenais (Schummel), 

 pale yellowish grey, the stigma and veins pale. Venation : 

 Sc shoit, Sci ending about opposite or slightly beyond tln^ 

 origin of lis, Sc^ removed a short distance I'rom the tip of 

 Sci, the latter alone being about equal to two-thirds the 

 basal dellcction of Cu^ ; basal deflection of R^^r, about 

 one-half the sector; basal deflection of Cui 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 ujjcurved ; sternal valves much higher, compressed, 

 the tips subacute. 



Hab. Rhodesia. 



Holoii/pe, ?, Salisbury, Mashonaland {G. A. K. Marshall). 



J^aratojjo types, 3 ? . 



Ty[)e in the collection of the British Museum ; paratypes 

 in the collections of Cambjidge University and the writer. 



Dicranomyia fuscopleura, sp. n. 



Size very small (wing of male about l mm.) ; antennrc 

 dark brown, the flagellar segments with a siiort basal 

 pedicel ; mesothorax dull brownish yellow, the pleura with 

 a broad, dark brown longitudinal stripe; wings faintly 

 tinged with grev, the sligma broun ; \ciii Sc long, cell 

 l.s7 .17.. eloped. 



