new or little-known Tipulidze. 345 
its tip, cell R; very wide at the wing-margin, and the basal 
deflection of Cu, before the fork of M all indicate a rather 
isolated group. Leiponeura alluaudi, Riedel, is very probably 
a member of this subgenus. The biological notes by the 
collector add another genus and species to the list of spider- 
web Tipulide and, curiously enough, this species, like the 
others, has white feet. 
Rhamphidia (Rhamphidioides) venustissima, sp. n. 
Rostrum brown ; antenne with the four basal segments 
yellow, the remainder of the flagellum dark brown; meso- 
notum dark brown, the sides of the prescutum yellowish ; 
pleura yellow, spotted with brown ; legs dark brown, the 
tips of the tarsi white; wings subhyaline with a heavy dark 
brown and grey pattern; basal deflection of Cu, before the 
fork of M; abdomen yellow, the intermediate segments 
with two transverse brown bands that produce a close 
banded appearance. 
Male.—Length about 4°3 mm.; wing 3°5 mm. 
Female.—Length about 5°3 mm. ; wing 3°9 mm. 
Rostrum moderately elongated, nearly as long as the head, 
dark brown; palpi small, yellow basally, the tips brown. 
Antennz with the four basal segments bright yellow, the 
remainder of the flagellum dark brown. Head dark 
brown. . 
Pronotum dull yellow. Mesonotal prascutum deep 
yellow, dark brown medially ; remainder of the mesonotum 
dark brown. Pleura dull yellow, spotted with brown. 
Halteres dull yellow, the knobs dark brown, a more or less 
distinct dark brown band heyond the base of the stem. 
Legs with the fore and middle coxz marked with brown on 
their outer faccs, the hind coxe entirely yellow; trochanters 
brown ; femora and tibiz dark brown, the extreme base and 
tip of the latter pale; tarsi with the metatarsi dark brown, 
on the outer half passing into creamy white; remainder of 
the tarsi creamy white. Wings subhyaline with a heavy 
dark brown pattern, consisting of five large radial blotches ; 
a sparse grey clouding in the posterior cells ; cell C yellow, 
unmarked except for the narrow seam at 4; subcostal cell 
yellow, dark brown at the base and tip, and at Sc,; the five 
dark brown areas are as follows: at arculus; at the origin 
of Rs, extending completely across cell R; the stigmal 
blotch, extending to cell lst M,; a large area at the end of 
vein R,,3 extending caudad to vein A,,,; end of cell R,; 
the grey seams in the posterior cells include the remainder 
