644 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
tag to the end of second joint: third joint about as long as second, rather blunt. 
No thoracic feet. 1'rothoracic segment about one-third as long as broad, with a 
roughened spur on the posterior half, the front edge quite hirsute. The markings or 
callosities on tin- back are difficult to describe, bat are as figured by Dr. Gissler. 
Length, 15"" 11 : width of prothoraoio segment, 4" m j Length, 1.6 mm ; a\ 
width of the body, 3.8 mm ; length from tips of mandibles to base of head, 1.6 mm . 
Larva found under bark of sycamore tree in Brooklyn, N. Y. Received from Dr. 
C. V. Gissler. 
I'ujhi. — Plate XXIV, tig. 8, represents a Lougicorn chrysalis, taken from under tin- 
bark of the same sycamore tree as the larva above described, and which may possibly 
belong to the same species. 
A. Halesidota tessellaris Abbot-Smith. 
Order Lepidoptkka ; family Bombycid.e. 
Found on the sycamore at Providence, K. L, September 20 to 30. It 
spun a cocoon the 26th, but died in confinement. Harris states that 
the cocoon is oblong-oval, composed of the hairs interwoven with a 
very little silk. The moth appears after the middle of Juue. 
Larva. — Body of the shape usual in Halesidota, hairs of the body delicate buff- 
yellow ; four dorsal pencils in front light sienna brown, with two pairs of shorter 
lateral white tufts ; a pair of whitish tufts near the end of the body. Head yellow- 
ish brown. A row of lateral black spots above the base of the abdominal legs. 
Length, 30 mm . 
4. Hettrocampa unicolor (Pack.). 
Mr. Pilot has bred this moth from the sycamore m Ohio. He says 
the larva? are common on the sycamore, but hard to rear. (Papilio, 
ii, p. 67.) Professor Riley has also raised it from the sycamore. 
5. Xepticula platanella Clem. 
From the beginning to the middle of July the blotches produced by 
these larvae may be found on the leaves of the button- wood tree or 
sycamore. The blotch is often extended over the early portion of the 
mine, so as to obliterate it, and again the early portion is present, being 
a slender line from which the blotch is formed. Imago during the lat- 
ter part of July. 
Larva. — The larva is pale green and the head pale brown, and it weaves a cocoon 
of a reddish-brown color during the latter days of July. 
Moth. — Antenme dark fuscous, eye-caps large, silvery. Head reddish-ocherous. 
Forewings dark brown, with a small white, slightly silvery spot on the middle of the 
inner margin and a very short costal streak of the same hue opposite to it. The cilia 
very pale yellowish, and the scales behind the cilia of the same hue, tipped with 
dark brown. Hind wings yellowish-fuscous; cilia fuscous. 
The following account is taken from Clemens' Tiueina : 
I ascertained, during the fall of 1861, that there is more than one species of Nepticula 
that mines the leaves of the sycamore tree, and that all of them are double-brooded. 
The first brood may be taken early in Juue and July, and the second during the latter 
part of September and early in October. 
The mine and larva of one species are described in the November and December 
number of the present work for 1861, page 83, and the imago in the January and 
