350 On new or little-known Tipulide. 
Holotype, 3, Salisbury, Mashonaland, March 1905 (G. 4. 
K. Marshall). 
Type in the collection of the British Museum. 
Tipula mashona is very closely allied to TJ. soror, 
Wiedemann, but may be distinguished by the dark brown 
autennal flagellum, the clear grey coloration of the head and 
thorax, and other characters. 
Nephrotoma mossambica, sp. n. 
Close to N. unicingulata, Alexander ; prescutal stripes 
very broad, confluent or nearly so; legs brownish black, the 
femoral bases paler; wings with the apical cells sparsely 
pubescent, Rs short and straight ; abdominal tergites one to 
five with a black median mark, segments six to eight ringed 
with black. 
Male.—Length about 13 mm.; wing 15 mm. 
Female.—Length about 18 mm. ; wing 16 mm. 
Frontal prolongation of the head dull yellow ; nasus long 
and slender. Palpi pale brown. Antennal scape orange ; 
flagellum black; antennze moderately elongate, if bent 
- backward, extending about to the base of the abdomen. 
Head orange, the occipital mark elongate, dull brown. 
Pronotum light yellow. Mesonotal prescutum pale 
whitish yellow with three very broad black stripes that are 
almost confluent, the humeral angles of the ground-colour ; 
scutum black with only a narrow yellowish median line; 
scutellum brownish testaceous; postnotum yellow with 
about the posterior two-fifths brownish testaceous. Pleura 
whitish, indistinctly marked with yellowish. Halteres brown, 
the knobs yellowish. Legs with the coxe and trochanters 
pale yellowish ; femora dark brownish black with the base 
paler, more brownish, this narrowest on the fore legs, more 
extensive on the hind legs; remainder of the legs dark 
brownish black, less intense on the basal half of the tibiz. 
Wings with a strong brownish-yellow tinge, the wing-apex 
passing into brown ; cell Sc yellowish brown; stigma dark 
brown ; an indistinct brown seam along the cord extending 
to cell lst M,; veins dark brown. Apices of cells R;, Rs, 
and M, sparsely pubescent. Venation as in N. unicingulata, 
-but Rs shorter and straighter, almost in alignment with the 
deflection of R,,; ; cell M, more broadly sessile. 
Abdominal tergites orange-yellow, the first tergite largely 
black ; tergite two with a linear black mark on the basal 
half and a similar mark on the apical half ; segments three 
