410 
A Monograph of Cuhcldne. 
the metatarsi; the first tarsal joint lias a basal band of white 
scales, the remainder and other tarsal joints clothed with dark 
scales ; fore, mid and hind ungues equal, black, both toothed. 
Wings tinged with yellow 7 and with testaceous veins; first 
sub-marginal cell longer and narrower than the second posterior 
cell, its stem equal to half the length of the cell, its base about 
level with that of the latter cell ; stem of the posterior cell equal 
a, ? ungues; b, cross-veins. 
in length to the cell and to the stem of the first sub-marginal ; 
posterior cross-vein a little longer than the mid cross-vein, 
situated from it about its own length distant, supernumerary 
cross-vein curved ; halteres with a pale stem and fuscous knob. 
Length .—6 mm. 
Habitat. —Westshore, Lake Simcoe, Ontario (E. M. Walker). 
Time of capture .— September. 
Observations. —A. single 9 of this species, sent by E. M 
Walker, taken u in a swamp, densely wooded with alder, ash, &c., 
with a few white pine and spruce”; not in very good condition 
but sufficient to add various details to Van der Wulp's original 
description. The indistinct creamy-white bands at the base of 
the hind metatarsi and first tarsal joints, composed of pale 
scales, showing more distinctly in some lights than in others, 
are very characteristic, and should serve to identify the specie- 
at once, as well as the testaceous veins. 
40. CuLEX FLAVESCENS. 11. Sp. 
Thorax golden scaled; abdomen entirely covered with 
ochraceous scales; legs brown, with the tarsi and metatarsi very 
broadly basally banded, pale ochraceous. 
9 . Head densely covered w ith narrow golden-yellow* curved 
scales, upright brown and black forked scales ; antennae yellowish 
at the base, brown apically, basal joint bright ochraceous ; palpi 
ochraceous with brown scales; proboscis unbanded. 
