INSECTS INJURING OAK-LEAVES. 155 
The whole body and legs pea-green, slightly darker below than along the back. 
Thoracic feet greenish-amber, spotted externally with black. Length, .40 mm . 
Pupa. — Body full and plump.; of the usual form and color; the end of the abdomen 
very much rounded and obtuse, with no rudiment of a cremaster (as it goes into the 
ground, not spinning a web), only a rounded knob. Length, 18 mm . 
Moth. — Thorax and body dark grayish-brown ; thorax with a round black spot on 
the hinder edge, encircled by a yellowish-brown line ; abdomen yellowish brown. 
Fore wings rounded at the apex, of a quite uniform umber brown ; basal line with a 
sharp distinct angle in the median space, the line reddish-brown, broadly shaded ex- 
ternally with much paler tawny brown ; on the costa the line is straight, with a 
broad external whitish gray shade. Middle line sharply scalloped, -becoming 
straight on the costa, with a sharp tooth on the discal fold and a sharp tooth occu- 
pying the entire submedian space; the last scallop short, indistinct, ending in a 
dark-brown tuft on the middle of the hinder edge of the wing. Outer line wavy but 
indistinct. A marginal wavy line. A broad whitish patch exterior to the middla 
line extending from the costa to the median vein. Hind wings sable brown, with a 
marginal shade and a dark broken band at the base of the fringe. Expanse of wings 
213. Schizura ipomece Doubleday (Coelodasys biguttatus Pack.). 
The following notes and descriptions are based on an examination of 
the material in Professor Riley's collection. The larva occurred on the 
oak September 24. In Virginia one was found by Mr. Koebele, on the 
birch, September 14, and it has also been bred from the blackberry. 
The larva makes an earthen cocoon, regularly oval in shape, covering 
it with sand on the outside, so that it closely resembles that of Janassa 
lignicola. G. unicornis spins a silken cocoon, with debris collected and 
adhering to the exterior. It is evident that C. cinereofrons Pack, is 
only a variety of biguttata, there being a series of connecting forms in 
Riley's collection. The moth occurred at Cambridge, Mass., June 16, 
and in July and August. (Harris.) 
Larvae of this species are found from May to October at St. Louis, Mo., feeding 
on the different kinds of oak and on maple. The moths issued in April and August. 
The coloration of the larvae is quite variable, though the most uniform marking is 
as follows: Color, green speckled with purple. A faint substigmatal sulphur yel- 
low line, most distinct on thoracic joints. A broad pale subdorsal line, between 
which the dorsum is pale lilaceous, but thickly mottled with rich purple brown and 
ferruginous, leaving a narrow dorsal line distinctly marked. Two elevated ferrugi- 
nous warts on top of joints 4 and 11. Head large, pale green, with a distinct lateral 
black and white stripe. (Unpublished notes.) 
Larva. — Differs from C. unicornis in the head being purple and having four dark 
narrow lines extending from the base of the jaws to the vertex ; the dorsal spine on 
the first abdominal segment is nearly three times as large and high as in C. unicornis, 
and ends in a deep fork, each tine of which bears a stiff truncated spine. A pair of dor- 
sal, rounded, small tubercles on each abdominal segment 1-8, those on the 5th and 8th 
segments being much larger than the others and coral red in color. Coloration much 
as in C. unicornis, but the branches of the V i Q front of the tubercle on the 8th seg- 
ment are wider and inclose a broken red line. Meso- and meta-thoracic segments 
green ; body brick-reddish, slashed with pale lines, with a broad dorsal band forked 
on the prothoracic segment and extending upon the horn on the 1st abdominal seg- 
ment; behind the horn are four dorsal oval light patches, each inclosing three red 
lines. Leugth 33 mm . 
