156 ENTOMOLOGICAL SOCIETY 
toward the inner border; along the costa is a dark, somewhat lunate dash 
or streak, reaching the base of the wing, but not the posterior limit of the 
green space ; on the inner base there is also more or less black ; along the 
margins of the black the green becomes more yellowish, and in some in- 
stances is bright sulphur-yellow; beyond this basal green space the orna- 
mentation is difficult to describe, consisting of dark metallic hues, chang- 
ing from bronze to violet in varying lights. A perfect unspread specimen, 
screened from side lights, appears bright metallic bronze, with a purplish 
.gloss interrupted by two sinuate transverse bands of a darker shade of 
brown, almost black: the first of these consists of two patches or tufts 
of raised scales, truncate posteriorly ; the second band is sinuate, the scales 
are less raised, and form no distinct tufts : a dusky spot at apex, and another 
at anal angle ; between the dark bands there is an almost white costal spot, 
shading imperceptibly into the bronze of the rest of the space. In a re- 
flected light the ordinary appearance of the wings shows, between these 
dark bands and the dark posterior border, three distinct coincident bands of 
the most brilliant metallic gold and lilac ; the first corresponding to the pos- 
terior limit of the green ; the second more irregular, and across the second 
third of wing; and the third elbowing near apex and coincident with hind 
border. In most specimens, along the median of these metallic bands, the 
wing is more or less whitish, particularly at costa, while there is also more 
or less white on the costa just inside the third or posterior metallic band. 
Secondaries bronzy-black, with less lustre than the primaries, and with 
distinct whitish fringe. Beneath both wings are brownish-black, glisten- 
ing, the primaries with an indefinite and incomplete whitish line along 
posterior border, and two paler costal spots, corresponding to those on up- 
per surface, more or less fully indicated ; the secondaries with tips of fringes 
only, whitish. Legs bronzy-black, the front coxae white or yellowish ; front 
tarsi ringed with white; spurs of middle tibiae white, with a few dusky 
scales, and middle tarsi ringed with white; posterior tibiae with white 
annulus and white tip, and with the spurs white, with two white annuli. 
Abdomen bronzy-black, with metallic iridescence; the ovipositor of the 
female pale, lance-shaped, and usually extruded beyond the tip ; the basal 
segment above with the margins usually flaked with white, and tending 
to form a distinct white annulus. 
Described from 12 specimens. 
Hab., Los Angeles Co., Cal. 
Differs at once from *$. xanthobasis Zeller by the fine green color of the 
basal space, the maculation of the remainder of the wing being lighter and 
more distinct throughout. 
From chlorobasis Zeller it differs in the costal maculation of the green 
basal space, as well as in the whitish costal spots, which seem to be entirely 
wanting in the Brazilian species. From both the prominent raised scales 
will serve as a distinguishing feature. 
I first met with this interesting little species upon my trip to Los Angeles 
in the spring of 1887, Mr. Coquillett having obtained a number of speci- 
