146 LYTHRIA PURPURARIA. 
lifeless manner. On the 2lst Mr. Hellins sent me 
the one larva he had reared to full growth, which he 
had reported on the 17th to be approaching thereto. 
I figured it at once, when it measured 20 to 21 
millimetres, and was of slender proportion, the rather 
flattened head in a line with the body, the mouth at 
the end, the second segment short, the sides of the 
third and fourth rather tumid, the ninth the stoutest 
segment, from whence it tapers slightly to the fourth, 
and also behind to the anal flap; in colour the head 
is green toward the middle of the face, and is striped 
on either side with blackish-green, and a subdorsal 
line of pale primrose-whitish, a velvety black stripe 
narrowing towards the mouth, and a lateral stripe (a 
continuation of the spiracular stripe of the body) of 
primrose-whitish, having a central fine black dotted 
line; from the crown is a pale whitish-yellow dorsal 
line, which soon melts into the green of the face; the 
mouth is pale greenish; the antennal papille are 
ereen ringed with black; the body is very dark green 
above on the back, blending imperceptibly into black 
at the side, handsomely relieved by the spiracular 
broad stripe of primrose-whitish ; the ground of the 
second segment is velvety black, traversed by dorsal 
and subdorsal lines of primrose-whitish ; of these lines 
on all the other segments the dorsal alone continues 
visible uninterruptedly towards the anal flap, as the 
subdorsal becomes from thence so suffused with black- 
ish-green that it seems lost on the anterior segments, 
and only the faintest trace of it can be detected as a 
ereen line with fine black edging on some of the 
hinder segments ; the tubercular dots are very small 
and black, only to be seen with the aid of a lens; this 
stripe from one end of the larva to the other well 
separates the dark colouring of the upper surface from 
that of the deep bluish-green of the belly, which has 
three deeper green stripes on either side, the middle 
one of these the broadest, and followed closely by a 
narrower line of the same colour, and the middle of 
