160 Annals of the South African Museum. 
Abdominal tergites chestnut-brown, sublaterally much paler, light 
greyish-buif ; segment one and most of segment two with a narrow 
dark brown lateral line ; segments three to eight with a pale greyish- 
buff triangular spot at the base of each segment, the apex of the 
triangle directed caudad. 
Habitat. — Portuguese East Africa. 
Holotype, J", Quelimaue, Louren^o Marquez, December 20th, 1908 
(C. W. Howard). 
Type in the collection of the United States National Museum, the 
species being added here to complete the data. 
This fly differs from all of the described African species in the con- 
spicuous erect hairs on the thorax. 
Gen. LEPTOTIPULA, gen. n. 
Frontal prolongation of the head moderately prominent, nasus 
distinct. Antennae of the male elongate, 12-segmented, the fii'st and 
third segments subequal in length ; flagellar segments very elongated, 
cylindrical, the first flagellar segment shortest, thence gradually 
increasing in length to the fifth, and then shortened to the tip. 
Tibiae with short spurs. Wiugs with R,, oblique ; cross-vein r short ; 
a long fusion of Cu-^ and M.^, this distance equal to the length of cell 
\st M^ ; second anal vein short. 
G-euotype, Leptotipula limnophiloides, sp. n. (Southern Ethiopian 
region). 
The long fusion of Gu^ and M.^ is a Limuobiiue character and quite 
unexpected in this sub-family. In Dolichopeza and Nephrotoma long 
fusions may occur, but they are between Cuj and M. 
Leptotipula limnophiloides, sp. n. 
Antennae -elongated ; femora black at the tip with a yellow sub- 
terminal annulus ; wings with a distinct brown stigma ; veins Gu-^ 
and M.^ fused for the length of cell 1st Mc,. 
Male. — Length *7-& mm. ; wing 8'2 mm. ; antennae about 4'8 mm. 
Frontal prolongation of the head rather prominent, brown, the 
entire dorsal half abruptly light yellow ; a distinct nasus with 
numerous pale yellow hairs ; palpi dark brown. Antennae elongated, 
the three basal segments brownish-yellow, the remainder dark brown ; 
first flagellar segment short, about as long as the first scapal segment ; 
remaining segments of the flagellum exceedingly elongated, slender, 
with abundant pale outstretched hairs and scattered black bristles. 
Head broad, the eyes large with fine ommatidia ; a low tubercle on the 
