ACIDALIA OCHRATA. 83 
particularly along the sides, where the spiracular region 
is puffed out, and there shows each break distinctly 
enough, and also gives rather a flattened appearance to 
the body both above and below. 
In general colour it is of a whity-brown, rather 
inclining to a buff tint; the back of pale brown has 
twin lines of dark grey deepening almost to black 
as they approach the posterior segments, and they 
enclose a thread-like line of the ground colour ; a sub- 
dorsal stripe faintly paler. The back is defined witha 
rageed edging of atoms of grey-brown; a narrower 
line follows, defined faintly in the same manner ; the 
spiracular stripe is the palest tint of buff, almost 
whitish; the spiracles are excessively small and black ; 
a small dark grey or blackish mark is at the end of 
each segment from the fifth to the tenth inclusive, just 
at the lower edge of the subdorsal, very faint on the 
intermediate segments, strongest on the ninth and 
tenth ; on this last another dark mark occurs beneath 
the pale spiracular stripe in a similar relative position. 
The belly is of the same colour as the back, and has 
a central pale stripe on each segment, bordered with 
pale grey, which is dark and distinct just at the end 
of each segment, and two paler stripes approximating 
a little towards each of the anterior segmental divi- 
sions, suggestive of a lyre; the usual tubercular 
bristles are very short, and whity-brown. The spira- 
cular region of A. ochrata is an inflated projecting 
ridge, which in colour bears a stripe of whitish flesh 
tint, the palest part of the pale larva. The head is 
pale pinkish flesh-colour, finely freckled with brown, 
the tips of the papille brownish. When the larva 
bends down its head beneath the belly the segmental 
divisions on the back appear then brownish as they 
open a little. ‘There are twelve wrinkles across each of 
the long segments, a less number but rather deeper 
in the shorter ones, so that the body appears to be 
composed of a numerous series of narrow rings. 
By the 8th November the larva had fed well and 
