1868.] 
225 
centralfy brown, those next the base of the wing the most so. The basal spot 
on the hind wings is brown towards the costa, sometimes with a fine purple 
reflection, carmine-red towards the postcosta with the areolets centrally brown 
and occasionally entirely brown. It almost attains the postcostal margin to 
beyond the tip of the quadrilateral, then leaving the postcostal margin at a 
distance of i—2 areolets curves round the tip of the quadrilateral at the distance 
of 4—8 areolets, and proceeds to the costa, its general direction perpendicular to 
the costa, but with a bidentate outline, the second and by far the larger of the 
two teeth being on the median vein; thence follows the costa to the base of the 
wing. Veins and cross-veins above black in both wings, except those covered 
by the spots which are carmine-red and the basal J of the median vein which 
is rufous. Beneath in both wings the basal J of the median vein is rufous, and the 
basal ^—I of the subcostal vein, the lower § of the nodus, the origin of the no¬ 
dal sector, and very conspicuously the entire length of the principal sector, are 
all yellowish white; as are also in the hind wing the veins and cross-veins 
covered by the basal spot, those covered by the basal spot in the front wing 
being carmine-red as above; the other veins and cross-veins black. The tips 
of all 4 wings immaculate. Pterostigma yellowish-white, li—2i times as long 
as wide and surmounting 1—If cellules. Antecubitals 20—24; posteubitals 
22—28. Cross-veins of basal area (front wing) 5—8; of quadrilateral (front 
wing) 7—10. 
The 9 differs as follows :—Is^. The top of the head and the dark parts of the 
thoracic dorsum and pleura are bright green, except in a specimen from Mr. 
Uhler, where the two latter are coppery-red as in"^ . 2nd. The sides of the epis- 
toma are widely bordered with whitish. 3rd. The second joint of the antennae 
is always whitish, with a medial fuscous dot sometimes subobsolete. 4th. The 
prothorax is very dark green, narrowly bordered all round with whitish, and 
with a small, transversely double, dorsal, whitish spot immediately before its 
posterior lobe. 5th. The dorsal earina is scarcely black, but of the same color 
as the thorax only of a much darker shade, and in one specimen it is crowned 
by a whitish line as it generally is in . 6th. The whitish annulus on abdomi¬ 
nal joints 3—7 is wider and is not interrupted above except on 7, and there is a 
distinct whitish dorsal line throughout 1—10, only interrupted by the terminal 
short, black, annular subsegment of each segment. The sides of 1—10 are dis¬ 
tinctly whitish with an irregular fuscous spot towards the tip of 1—7, and 
the dorsal earina extends the whole length of joint 10. 7th. The femora are 
whitish, the anterior ones with a confluent “anterior” and “superior” vitta, 
and the 4 others with only a “superior” vitta, both black; “posteriorly” all 
the 6 femora are marked as in , the dots sometimes subobsolete. 8th. Instead 
of the basal spots, all 4 wings are pale-yellowish brown on their basal ^ or i 
with an evanescent outline, the extreme edge of the postcosta and the two 
ranks of antecubitals less obviously colored. In one Illinois specimen and also 
in that from Mr. Uhler, the veins and cross-veins covered by the pale yellow¬ 
ish-brown color are also pale yellowish brown above and below, except in the 
hind wing below where most of them are yellowish-white in all 3 specimens. 
Beneath in all 4 wings nearly the entire subcostal, instead of its basal ^is 
