~PROMINENTS. 113 
larger, with longer and more produced wings. Its fore- 
wings are ashen-gray, with dashes of ochreous brown; the 
inner margin for two-thirds of the width of the wing is 
purplish-brown; there are no transverse lines; the very 
small discal spot is round and black and a short black dash 
is found at the base of the wing. The hind-wings are gray- 
ish-brown, darker in the female. 
The caterpillar has a dirty white head, with a band on 
each side composed of brownish-black spots, dotted with 
red. The body is pale brown, with a brownish-olive shade 
along the back, quite distinct on the last four segments, and 
frequently quite greenish. The distinct V-shaped mark is 
pinkish; an oblique olive-brown line runs from the base of 
the long and fleshy tubercle on the fourth segment back- 
wards to the anterior part of the leg on the sixth segment. 
This movable tubercle is long, with the distal half slender. 
A slight hump occurs on the eighth and a larger one on the 
twelfth segment. 
THE UNICORN PROMINENT. 
(Sehizura unicornis S. & A.). 
The caterpillar of this moth is also a very peculiar being. 
It is brown or reddish-brown with a pea-green patch on 
each side of the frst three segments, and variegated with 
white on the back, with a large brown head. The fourth 
segment is furnished on the upper side with a long, horn-like 
and acute tubercle with two small tubercles at the tip and 
from the possession of this horn the species has been named. 
On the eighth segment is a slight hump with two small 
warts and on the last segment is a rather large dorsal 
hump supporting two warts. On the body are a few short 
and scarcely visible hairs. The last segment and the last 
pair of feet are always raised when the caterpillar is at rest, 
but are used when walking. These odd-looking worms are 
not common, but may be found during August and Septem- 
