new or littlesknown Tipulide. 319 
series on vein 2nd A. Venation: Sc, at the tip of Sc,, the 
latter ending at from three-fourths to four-fifths the length 
of the long sector; Rs long, gently arcuated, with about 16 
macrotrichie; R,,3; in alignment with Rs, longer than cell 
lst M,; R, at origin bent at almost a right angle to R2,3, 
the basal deflection destitute of macrotrichiz ; 7 inserted at 
the bend of R,; inner ends of cells R,, R;, and lst M, about 
in alignment; cell ls¢ J narrowed at its proximal end ; 
basal deflection of Cu, at about three-fourths the length of 
cell lst Mg. 
Abdomen brown, sparsely hairy. Ovipositor yellowish 
horn-colour, the valves exceedingly long and slender, but 
little shorter than the entire remainder of the abdomen ; 
tergal valves almost straight, the margins smooth or nearly 
so, the extreme tips a little upcurved ; sternal valves long 
and straight, the tips pointed. 
Hab. West Africa. 
Holotype, 2 , Efulan, Cameroun, May 7, 1920 (J. A. Reis). 
Trentepohlia (Mongoma) nivetipes, sp. n. 
General coloration brown; legs dark brown, the knees, at 
least in the posterior legs, only narrowly and indistinctly 
pale ; tarsi and apical third of the tibie white; wings 
greyish brown, the tip narrowly darkened. 
Male.—Length about 8°8 mm.; wing 6°5 mm. 
Female.—Length about 9°5 mm.; wing 67 mm. 
Rostrum and palpi light yellow, both the labial and 
maxillary palpi dark brown. Antennz rather elongate, 
dark brown. Head dark brown, the vertex narrowed 
between the eyes. 
Mesonotum brown, the pleura more yellowish brown. 
Halteres dark brown. Legs with the coxe and trochanters 
testaceous yellow ; femora dark brownish black, the tips 
narrowly and indistinctly paler; most of the legs were 
detached in the envelopes, but there is evidently a difference 
in the amount of pale coloration at the knees in the different 
legs, the posterior legs probably having the white most 
reduced and almost obliterated ; tibize brownish black, the 
base very narrowly and indistinctly pale, not clear-cut as in 
the other members of the fragillima group; tibial apex abruptly 
and broadly white, this including the distal third or less ; 
tarsi white, the terminal segments a little darkened. The 
armature of the femora and tibie that is found in the 
related species is here little in evidence ; the legs are clothed 
with the usual abundant appressed hairs and at comparatively 
¥ 
