new or little-known Tipulide. 343 
basal deflection of Cu, at about mid-length of the lower side 
of cell lst My. 
Abdomen black, the penultimate segment brighter. 
Hab. West Africa. 
Holotype, 3 , Lonji, about 50 miles north of Kribi, near 
the Ulou River, Cameroun, altitude about 1000 feet, 
July 17, 1919 (J. A. Reis). 
Paratype, 3, Grande Bassan, Jonchier, Ivory Coast, 1903 
(R. Blanchard), in the Paris Museum. 
Ceratucheilus flavirostris is readily told by the dark colour 
of the body, the pale yellow rostrum, and the very heavily 
spotted wings. The short straight R,,; and the position 
of the basal deflection of Cu; is distinctive of this species. 
RHAMPHIDINA, subgen. nov. 
Rostrum long and slender, longer than the head. An- 
tenne with 16 segments. Wings with Sc moderately 
elongate, ending about opposite mid-length of As and not 
close to R, at the wing-margin; Sc, at the extreme tip of 
Sc,; Ry; sinuate, diverging from the almost straight Ry45; 
cell 1st M, open by the atrophy of 17; basal deflection of 
Cu, before the fork of M. 
Type of the subgenus.—Rhamphidia (Rhamphidina) came- 
rounensis, sp. n. (Cameroun). 
Rhamphidia (Rhamphidina) camerounensis, sp. n. 
General coloration dark brown, the thoracic pleura more 
yellowish ; halteres brown; wings hyaline, the stigma pale 
brown ; cell &, narrowed before its outer end; cell lst M, 
open. 
Male.—Length about 4°2 mm.; wing 3°8—4 mm. 
Rostrum long and slender, longer than the head, dark 
brown ; palpi dark brown. Antennz dark brown. Head 
dark brown. 
Mesonotum brown, the lateral portions and the pleura 
dull yellowish testaceous. Halteres dark brown, the stem 
pale. Legs with the coxz brownish testaceous; trochanters 
testaceous ; femora dark brown; tibiz dark brown, the tip 
and all the tarsi broken. Wings hyaline, the stigma pale 
brown; veins dark brown. Venation: Se rather short, 
Sc, ending just beyond mid-length of Rs, Sc, at the extreme 
tip of Sc, and exceeding it in length; Rs long, almost 
straight; R,,; long, gently sinuate; cell R, narrowed 
