MEMOIES OF THE NATIONAL ACADEMY OF SCIENCES. 
231 
This is a very variable specios, and it is difficult to separate some cabinet specimens, Avlieu 
not fresh, from those of H. blnndata. It is distins^uislied by the stouter pali)i, the second joint 
being broad and bushy at tho ond, while the third joint is shorter than in biundata ; the second 
joint is either ashen or with a narrow blackish line on the outside, while in biundata the side is 
almost wholly black, and the third joint is much longer. It is best characterized, liowever, by the 
usually not very distinct, linear, curved discal mark being inclosed in a large, diiluse, Innate, pale 
ashen patch. In the well-preserved and fresh and rather melanotic Franconia specimens i-eceived 
from Mrs. Slosson this spot is small and obiiciiiely ovak It also differs from biundata in tho less 
distinct transverse lines of the fore wings. Knbbed and worn specimens arc never so uniformly 
olive-green as in biundata^ and have never been observed becoming ocaerous yellowish or reddish, 
as occasionally occurs in biundata. INlany individuals are smaher than in biundata. 
The specimens collected by Mrs. Slosson at Franconia, N. H., and they are very fresh and 
well preserved, are decidedly darker than those from the Southern States and from near the coast, 
while the lines and discal mark are rather moi'e distinct. In tho Franconia examples there is a 
diffuse whitish patch extending from the middle of the wing beyond the extradiseal line to the 
apex, including the two dark subapical sj>ots or streaks. 
Ill a $ example reared from the larva figured on PI. XXXIII, fig. 2, the cross lines on the 
fore wings are obsolete and the wings are very pale whitish, with a slight olive tint, and the outer 
half of tlie wings are whitish, while both wings beneath are very pale ashen in hue. The shai:»e 
of the wings is much the same in both species; in however, the costa of the fore wings 
is a little more fall, the wings being a little more produced toward the apex. 
For my identification of this species I depend on a fairly well-preserved large 2 from Brooklyn, 
IMusenin. Mr, E. Thaxtor also regards tins as the guttivitta of Walker’s description. It is Loch- 
ma^us cinereus of my Synopsis of the Bombycidse of the United States (Proc. Ent. Soc. Phil, iii, 
p. 372). The type of this species was formerly in the Museum of the Peabody Academy of Sciences, 
but became lost or mislaid. It was much rubbed, not ohowing the characteristic markings, the 
description being that of a worn specimen. It is tho LoclimceuH olivatus of my report on Forest 
Insects (p. 397), being erroneously determined as that species, and not the olivata of my Synoi)sis. 
This is also JI. pulverea of Eiley and of my report on Forest Insects, p. 159, and elsewhere; 
the pw/rcmi of Grote and Eobiuson is quite a different species, as I have ascertained from an 
examination of their type in the American Museum of Natural History at New York. 
Larva (PI XXXI, figs. 1, la — Ir/Q. — Found on the sugar maple, July 10, at Brunswick, Me., 
feeding on the underside of the leaf, eating out a little irregular i:>atch; no eggs were to be dis- 
covered. 
Stage I. — Ijeugth, 5 mm. Head large, rounded, much wider than the body; pitchy chestnut, 
or dull, dark amber. The body tapers gradually from the prothoracic segment to tlie end of the 
body, which is elevated, as usual Anal legs slender and as long as the eiglith segment is thick; 
paler at tips; cylindrical, and the tips are slightly eversible. The skin of the body is smooth and 
shining, of a uniform pitchy, dull reddish color, with fine, narrow, threa<Mike, greenish yellow, 
wavy lines. The dorsal region between the first thoracic and tho eighth abdominal segments 
is greenish yellow. 
The larva is the most remarkable of its family, in ])ossessing at this stage an extraordinary 
armature of nine pairs of enormous horns like those of a deer. (Fig. 83, III, a, />, c, d). The protho- 
racic pair are nearly three times as large as those on tho first abdominal segment, and arise from 
a dark piceous plate; each horn is stout, about twice as long as tlie body is thick, with two stout 
acute tines reaching forward ami outward, and a third upward, with a fourth small sharp one 
projecting in front near the base; each tine beai'S a hair arising from near the end. The tines are 
more or less rough and finely spimdoso, especially on the opposing bases of those i)rojecting 
njiward and backward. The second and third thoracic segments are smooth and unarmed and 
much wrinkled transversely. On the first abdominal segment is a pair of long, slender horns 
with the distal third smaller and bent forward and outward, with the end thickened and bearing 
two or three minute spinulcs and a single long hair; this pair arises from a largo black dorsal, 
undivided plate, while those behind (on second to seventh segments) arise from a more rounded 
black plate, divided into two half-moou-shaped pieces by a distinct greenish yellow space. Those 
