316 Dr. C. P. Alexander on 
with an elongate, dense,*erect, white pubescence, Head 
dark grey. 
Mesonotal prescutum light reddish brown without darker 
markings ; remainder of the mesonotum brownish yellow. 
Pleura brown, the dorsal pleurites a little more reddish. 
Halteres pale, the knobs darker. Legs with the coxe and 
trochanters pale brown; remainder of the legs light brown. 
Wings faintly greyish subhyaline; stigma lacking; veins 
dark brown. Venation: r on R,y,3 about its own length 
beyond the fork of Rs; As straight or even weakly convex, 
without macrotrichiz ; R,,3; rather weak just beyond 7, but 
becoming stronger distally and here provided with about a 
score of macrotrichie ; deflection of R,,; long, straight, in 
alignment with the outer section of Ry,; ; r—m at right angles 
to 4,5, in alignment with the subequal basal deflection of 
M,,5; petiole of cell M, very short, about equal to ora 
little longer than r and about two-thirds the basal deflection 
of M,,5; basal deflection of Cu, about in alignment with 
the fork of Rs. 
Abdomen dark brown, the hypopygium more yellowish. 
Male hypopygium with the pleurites moderately slender ; 
two slender pleural appendages, one tipped with a few long 
yellowish bristles. . 
Hab. West Africa. 
Holotype, 3, Lonji, about 50 miles north of Kribi, near 
the Nlong River, Cameroun, April 19, 1920 (J. A. Reis). 
“Taken at a lamp in the evening.” 
Gonomyia (Leiponeura) pulchripes, sp. n. 
General coloration dark brown; basal segments of 
antenne, head, pronotum, and a narrow stripe on the 
thoracic pleura light yellow; halteres yellow, the base of 
the knobs brown; legs yellow, the femora with a broad 
dark brown subterminal ring; wings brownish grey, a sub- 
hyaline area before and beyond the stigma and at the 
wing-tip; Sc short, Sc. at the tip of Sce,; male hypo- 
pygium with three pleural appendages. 
Male.—Length about 3:2 mm. ; wing 3°3 mm. 
Rostrum and palpi dark brown. Antenne with the 
enlarged scapal segments light sulphur-yellow, the basal 
flagellar segments pale yellow, soon passing into dark 
brown ; flagellar segments provided with long, conspicuous 
verticils. Head light yellow, badly folded in the unique 
type, the centre of the vertex apparently marked with dark 
brown. 
Pronotum light sulphur-yellow, this coloration continued 
