Genus Nyssorhynchus . ’65 
branches, but not forming any distinct spotting; a long white 
area on the third and a small one at its base ; fourth withm pale 
spot at the base of the fork, one at each tip and one in the 
middle of the outer branch ; fifth with a pale spot on the stem 
near the fork, two on the outer and one on the inner branch of 
the fork, each branch white at the tip ; sixth white at apex and 
with two long white areas near the base; two prominent pale 
areas on the fringe at the apex similar to those on fringe of the 
outer costal border ; border scales pale where all the veins join 
the edge and also the fringe, the fringe spots being indistinct 
grey; first fork-cell much longer than the second and slightly 
narrower, its base much nearer the base of the wing, its stem 
nearly one-fourth the length of the cell; stem of the second fork- 
cell nearly as long as the cell; mid cross-vein in front of the 
supernumerary and posterior, the latter not quite its own length 
distant from the supernumerary. 
Length. —4 to 4*5 mm. 
Habitat. —Bihe, Angola (Dr. Creighton Wellman). 
Time of capture. —24. ii. 05. 
Observations. —Described from three 9’ s - A very marked 
species with uniform brown legs and marked wing venation, the 
first fork cell being very long. 
Type in the British Museum. 
Nyssorhynchus pseudowillmori. nov. sp. 
Head black behind, white in front; palpi with two broad 
apical white bands and a narrow one towards the base; proboscis 
pale at the apex. Thorax brown, covered with greyish-white 
scales. Abdomen brown with,golden hairs. Legs brown, femora, 
tibiae and metatarsi spotted; tarsi of fore and mid legs with 
narrow pale apical bands except last two, in hind legs the meta¬ 
tarsus has a narrowish apical band, the first tarsal with a broad 
apical one, the second and third with broad apical and basal 
white bands, the last all white. Wings mostly creamy scaled, 
costa with four large and two small basal black spots. 
$ . Head brown, densely clothed with black upright forked 
scales behind, white in front, around the eyes more appressed 
creamy scales, almost broad narrow-curved ones, a large tuft of 
creamy-white hair-like scales projects forwards between the eyes 
and black chaetae from the dark scaled area ; palpi black with 
two broad white bands, one apfcal, the second about the same 
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