18B7.] 63 
The spiracles white, edged with black, the belly and legs of the green ground 
colour. 
I am indebted to the kindness of Mr. Steele, of Congloton, for the subjoined 
varieties. 
Var. 1. — Ground colour a brilliant yellow, the upper surface as above mentioned, 
suffused with deep rose-pink ; the dorsal striije composed of two darker pink lines, 
confluent at the beginning of each segment, forming a spot ; the sub-dorsal stripe 
bright yellow, only visible on the anterior halves of the segments ; the tubercular 
spots and two transverse streaks near the end of each segment also of the bright 
yellow ground colour. 
Var. 2. — A dull pale yellowish-green, the dorsal stripe faintly outlined with 
orange-red, with a spot at the segmental divisions ; sub-dorsal line of same colour, 
but interrupted on the liinder half of each segment ; tubercular dots red, and 
situated on the faint reddish outlines of diamonds, which are very delicately freckled 
within ; spiracles as in the others,, white ringed with black. — Id. 
Description of the larva of Hadena thalassina. — Early in July, 1865, Mr. Double- 
day kindly sent me several examples of the larvse of this species, that had been 
reared from eggs, and were fed with Polygonum aviculare, there were several varieties 
in colour, but not a green one, as quoted from Freyer, in Stainton's Manual. 
They were full fed early in August, and the moths appeared from May 31st to 
June 4th, 1866, the next year : remarkably fine specimens. 
The larvae were about an inch and a-quarter to an inch and a-half in length, 
cylindrical, and uniformly plumjj, the head being rather smaller than the second 
segment. The following are the three varieties amongst them. 
Var. 1. — Reddish-brown above, as far as the spiracles, a dull brown plate on 
the second segment, through which the dorsal and sub -dorsal lines are traced ; the 
dorsal line pale ochreous on the anterior segments, but on the others much suffused 
with the ground colour, except at the segmental divisions, where it re-appears as 
an ochreous spot. 
The sub-dorsal line ochreous, and much suffused with brown. 
On the fifth segment to the twelfth, inclusive, a dorsal diamond shaped of 
mottled brown, darker than the ground colour, and on each side a wedge shape of 
very dark brown, pointing forwards, their broad ends a little distance from the 
segmental divisions, their sides edging the lower half of the diamonds and the sub- 
dorsal lines. The wedge marks gradually increase in size towards the twelfth seg- 
ment, where they are largest and darkest, and most conspicuous, by the sub-dorsal 
line being there suddenly paler, and united by a transverse pale line at the base of 
the wedges. 
Spiracular line black, on which are the white spiracles, and, running imme- 
diately beneath, is a pale greyish stripe, its upper edge whitish, belly and legs 
brownish-grey, head pale brown. 
Var. 2. — A rich cinnamon-brown, mottled with ochreous above ; belly and legs 
paler and greenish-ochreous ; dorsal and sub-dorsal lines paler than the ground 
colour, but not very distinct, the diamond marks hardly visible ; the blackish wedge 
marks strongly defined, but with the addition of two or three fine streaks of ground 
