504 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
not checkered, with a greenish tinge, reddish above and beneath, front edge of 
prothorax pale. Length, it)""". Brunswick, Me., August. 
."»'.*. (ieometrid larva. 
larva. — Head deeply th-ft: the conical tubercles acute, scarcely as wide as the 
body, which is cylindrical, slender. 
On the side of the tilth abdominal segment, low down, is a small greenish-red 
Bmootfa tubercle. On the penultimate segment a dorsal rust-red irregular Low tu- 
bercle. Supra-anal plate conical, surface rough with small hair-hearing war 
Anal legs very large on the sides and with two large spines above. Reddish rust- 
red above, like the stem of a beech leaf; greenish beneath. Length 15 mm . Bruns- 
wick, Me., August 11-14. 
60. Geomitrid larva. 
Larva. — A Geometrid like a small dead and dry twig. Head broad and somewhat 
flattened. Antenna 1 very large. Head wider than the body, swollen on the sides 
opposite the middle of the clypeus. 
Near the end of the second abdominal ring are two transversely oblong smooth 
tubercles connected by a ridge; these are the most prominent tubercles; on the fourth 
segment before the last near the hinder edge is a pair of high, slender, sharp, dark, 
rough points or tubercles; the pair in front of the first pair of abdominal legs is the 
largest, and there are numerous smaller scattered fine tubercles, giving a rough ap- 
pearance to the slender body. Supra-anal plate short and rough ou the surface, the 
anal legs very broad on the sides. The two spines unusually large. General color dark 
purplish brown, like a dead dry birch twig; head concolorous with the rest of 
the body. Length, 25 mm . Brunswick, Me. 
61. Pyralid larva. 
This caterpillar was observed on the white birch at Providence, Sep- 
tember 25, making a large loose tent of white silk open at each end. 
Larva. — Body thick and fleshy. Head not so wide as the prothoracic segmeut, 
which is much narrower than the second segment. The head is dull amber, the body 
pale pink, with four very conspicuous subdorsal lunate black spots, the pair on the 
third thoracic segmeut larger than those on the second. The dorsal hairs are short, 
those on the side and the end of the holy much longer. Length, 20 mm . 
6*2. Teras ferrugana (Schiffermiiller.) 
In Europe this insect feeds on the birch, poplar, and alder, as well as 
the oak. In this country Walsh has found it to be iuquiliuous in galls 
of Cynips saUces-strobiloides. We have bred it from the white piue. 
(See Pine Insects.)* 
* Teras niveana (Fabr. ) is also found in this country : in Europe lives on the birch, and 
is to be looked for on that tree. 
LozoUrnia musculana Hiibn. This species, which in Europe feeds on the birch, 
willow, and numerous other plants, is reckoned among American birch-insects, though 
no one in this country has yet reared it. 
Penthina capreana Hiibn, which in Europe feeds on birch and willow, has not yet 
been reared in this country. The same may be said of P. dimidiana Sodoffsky, which 
belongs to the same category as the three foregoing speeies, to which may be added 
Sericoris urticana Hiibn, and Pivdisca similana Hiibn (Mrs. Dimmock, Psyche, iv, p. 
241). 
