o48 
Appendix. 
Legs much as in S. remipes ; the mid pair with large paddle¬ 
like masses of scales, the paddle blackish, except at the apex, 
where it is creamy white, most of the metatarsal portion being 
white, the leg itself is scaled with violet and purple scales ; fore 
and hind legs simple, the hind with the tibiae rather expanded 
apically; ungues small, equal, and simple. The legs show 
brilliant colours at times. 
Wings with typical brown Sabethes scales ; first submarginal 
cell longer and narrower than the second posterior cell, its base 
considerably nearer the base of the wing than that of the latter ; 
the stem rather less than one-third the length of the cell ; stem 
of the second posterior cell nearly as long as the cell; super¬ 
numerary and mid cross-veins practically meeting in an open 
angle, posterior cross-vein a little longer than the mid and nearly 
in a line with it. 
Length .—5 mm. 
Habitat. —Para, Brazil (Durham). 
Observations .—Described from several 9 s and a single 
£ caught by Dr. Durham; the £ was unfortunately broken in 
mounting. 
It is clearly a distinct species easily told in the £ by the 
white tipped paddle and by the position of the cross-veins in 
both sexes. It most nearly approaches S. remipes, the mid legs 
of the only being jjaddled. 
Genus WYEOMYIA. Theobald. 
(Page 267, Vol. II.) 
Wyeomyia luteoventralis. n. sp. 
Thorax unadorned with long broad dusky scales, on a deep 
testaceous brown surface, pleurae ochraceous with white scales ; 
abdomen black dorsally, ochraceous to nearly white ventrally, 
unadorned. Legs deep brown, hind metatarsi shorter than the 
hind tibiae. Wings densely scaled with rather broad scales. 
9 . Head coveiled with flat dark-brown scales, a pale border 
round the eyes and a white line between them, a few black 
bristles laterally and a few projecting forwards between the 
eyes ; clypeus black with frosty tomentum ; palpi small, covered 
with black scales ; proboscis deep brown ; antennae deep brown, 
the basal joint frosty grey on one side, verticillate hairs black, 
pubescence pallid. 
Thorax deep testaceous-brown with long broad dusky scales, 
ending convexlv, the scales being loosely and irregularly disposed ; 
scutellum bright testaceous with similar scales; metanotum 
