a ig folie 
a 
. 
INSECTS INJURIOUS TO THE OAK. AZT 
- Professor French has reared this caterpillar, which occurred in Union 
County, Illinois, June 30th; July 6th it went into the dirt of the breed- 
ing-cage to pupate, the moth appearing August 6th. 
The caterpillar.—Length, 1.25 inches. General color bright green, head gray, first 
segment behind the head with’two dark purplish black dorsal Warts; from these a 
purplish-brown line extends backward. This purple-brown color extends over the 
back part of the sixth segment, the whole.of the seventh, and most of the eighth. 
On the third segment begins a dorsal orange-patch, which reaches back to the sixth 
segment, filling the space between the purple lines. On the ninth segment is another 
orange-patch. The tenth segment has no purple and only a little orange below the 
stigmata. There is also a faint yellowish dorsal line. The eleventh segment has 
purple-brown subdorsal lines with orange on the back. These lines unite on the 
twelfth segment and form a broad dorsal line. Feet and legs purple. (French.) 
45, THE SIX-FLAPPED SLUG WORM. 
Phobetrum pithecium Smith and Abbot. 
Order LEPIDOPTERA; family BOMBYCIDA. 
A singular dark-brown short, broad, ovate, flattened caterpillar, with six long 
oD 7 b) b l r] 3? 
tongue-like, slender, fleshy lateral appendages, sometimes feeding on the oak. 
This singular caterpillar, usually found on the plum, cherry, and 
apple; changes to a brown moth with very narrow wings. In the male 
the antenne are very broadly pectinated, and the remarkably long nar- 
row fore wings are partly transparent. Mr. Lintner has bred it from 
the oak. ‘ 
46. Cosmia orina Guen. 
Order LEPIDOPTERA; family NocTuIp#. 
A smooth yellowish-green larva, ;;inch long, body cylindrical, above pale yellow- 
ish green, with a dorsal line of yellow, less distinct on the anterior segments, and 
covered with fine dots and short streaks of yellow, less numerous on the second and 
terminal segments. Head rather smooth, flattened in front, slightly bilobed, pale 
whitish-green. One specimen, which entered the chrysalis state on the 24th of June, 
produced the imago on the 18th of July. (Saunders. ) 
47. THE POLYPHEMUS SILK-WORM. 
Telea polyphemus Hiibner. 
Feeding on the leaves in August and September, a large, fat, pale-green worm, as 
large as one’s finger, with pearly red warts, with an oblique white line between the 
_ two lowermost warts; the head and feet brown, and a brown V-shaped line on the 
tail. 
The American silk-worm, not uncommonly met with on the oak, may 
be artificially reared in great abundance on the oak, and the silk, reeled 
from the cocoons, can make a durable and useful cloth. The large, thick, 
oval cocoons are attached to the leaves and fall with them to the ground 
in autumn. The eggs are laid in June, when the moths may be seen 
