a 22 (June, 
dered along the spiracles by a narrow stripe of full-deep green ; the sub-spiracular 
inflated stripe whitish ; the belly and legs of the ground colour, a trifle darker than 
the back. The head was also of the pale ground colour, with a blackish streak 
across the mouth, and was more polished than the surface of the body, though that 
was rather glossy ; the folds of the segmental divisions appeared white; the spira- 
cles were black, as well as all the tubercular dots, which were plainly visible in 
their usual situations, those on the back smaller than the others, and every one of 
them furnished with a fine whitish hair; the anterior legs also spotted with black. 
—Wm. Bucxter, Emsworth, Nov. 25th, 1870. 
Description of the larva of Acidalia triyeminata.—I am very much indebted for 
young larvee of this species to the kindness of Mr. J. R. Wellman, who captured the 
parent moth on the 18th June, 1870. The eggs, Mr. Wellman informs me, were, 
as well as he can remember, of a pale pinkish colour, and much like those of rusti- 
cata ; they were laid loose ina box, and hatched in about ten days. 
The young larvee were supplied at first with a variety of food, including maple, 
birch, and knot-grass. In their infancy they appeared to feed on the two first- 
named; but, when nearly half-grown, they fed entirely on Polygonum aviculare ; 
and on this plant I had the pleasure to make their acquaintance on the 28th of 
June, and continued to feed them with the same up to their pupation, which oc- 
curred July 22nd to 24th. One moth, ag , appeared on the 14th of August, the others 
remaining over the autumn and winter. Mr. Wellinan, more fortunate, bred up- 
wards of a dozen specimens, between the 8rd and 16th August. 
The full-grown larva is about three-quarters of an inch in length, and, although 
its shape is really more cylindrical than flattened, the puffed spiracular region 
gives the appearance of a rather flattened form: its breadth is greatest at the 
ninth segment, from which it tapers, by degrees, both behind to the anal tip, and 
in front towards the head, which is the smallest segment ; it is very rugose, each 
segment being sub-divided into twelve portions by deep wrinkles ; the segmental 
divisions deeply cut, and much less in diameter than the segments themselves. 
Its colour is a dingy deep brown, relieved along the spiracular ridge by an 
almost continuous streak of dirty pale ochreous, interrupted at the segmental 
divisions. On the back, as far as the beginning of the tenth segment, is a very 
faint, pale dorsal line, chiefly visible befure and behind each segmental division, 
where it is palest, and set off by being bordered by thick black strokes; from 
these, two blackish streaks diverge obliquely towards the sub-dorsal region, forming 
a kind of A. mark pointing forwards ou the anterior of the segment, the middle 
part of which is much suffused with dark brown; the sub-dorsal line is also blackish 
but not continuous, being interrupted twice on each segment; on the tenth seg- 
ment there is a central, somewhat star-shaped, whitish spot, and the remaining 
posterior segments are brown, without any definite markings. The ventral surface 
is dark brown, and contrasts strongly with the pale spiracular ridge; the head is 
shining brown. The larva of this species is further distinguished from those of its 
congeners, by having, from each of its wart-like tubercles, a rather long, dirty, 
ochreous bristle, curved forwards on allthe segmentsas far as the tenth, but curved 
backwards on the other three; these bristles have the extremity as thick as the 
base, and greatly resemble those on some species of Caradrina. 
It is a very timid larva, contracting itself at the least alarm, and remaining 
a very long time afterwards without movement. Its usual position in repose is a 
close coil, with its head twisted round on one side, over the back of the tenth seg- 
ment.—Ip., Nov. 26th, 1870. 
