Genus Wyeomyia. 271 
surface of the femora; knee spot small and pale; hind meta¬ 
tarsi longer than the hind tibiae; ungues equal and simple. 
Wings with the veins clothed with umber-brown scales, the 
stem of the fourth with long thin scales on one side (Fig. 283, i), 
also the branches of the second to fifth and the base of ohe 
second; first sub-marginal cell longer and a 
little narrower than the second posterior cell, 
its base considerably nearer the base of the 
wing than the base of the latter, stem about Fig. 284. 
one-third the length of the cell ; stem of the 
second posterior cell rather more than two- 
thirds as long as the cell; posterior cross-vein about its own 
length distant from the mid cross-vein ; the marginal transverse 
vein joins the second long vein sharply and at an obtuse angle, 
the vein being carried a little way beyond it and scaled (vide 
Fig. 282, c). Halteres ochraceous, with a deep fuscous knob. 
Length .—3 to 3 * 5 mm.; of hind legs 8 * 5 mm. 
Habitat. —Castries, St. Lucia (St. George Gray, 1. 2. 1900); 
Grenada (Broadway) (63). 
Time of capture. — December 25 (St. Lucia); February 
(Grenada). 
Observations. —Some specimens were taken at an elevation of 
1000 feet at 2 p.m., at a place called Piton, Flore Farm, in the 
forest in St. Lucia. 
This species comes in my new genus, for which Professor 
Lankester proposed the name Wyeomyia, the distinguishing 
character being the metathoracic bristles. 
It is a solitary species, and is very common where it occurs 
(in St. Lucia). Specimens sent by Mr. Broadway from Grenada, 
taken on the Ballast Ground during February, differ slightly 
from the St. Lucia specimens. The head scales are more 
ochraceous and the posterior cross-vein is slightly nearer the mid 
than in the St. Lucia specimens. They are not distinct, however, 
as far as I can see. 
This may be Williston’s Aedes perturbans. But I have not 
yet seen specimens from St. Vincent. The description, however, 
would apply to this as well as to one or two other species. It 
is closely related to the species I take to be Aedes ( Wyeomyia) 
pertinans of Williston, but differs from it in the disposition of 
the metathoracic chaetae and in the position of the cross-vein 
and fork-cells. 
