124, ACIDALIA IMITARIA. 
the segments; there are also two almost imperceptible 
ridges, one on each side, equidistant between the 
lateral skin-fold and a median line of the back; the 
body is also transversely wrinkled or divided into 
sections, from sixteen to twenty on each segment ; 
the number doubtless uniform in the species, but 
not in the individual; after the ninth segment these 
sections are manifestly fewer and wider than on the 
anterior and median segments; there are many short 
stiff scattered bristles about the head and body, more 
particularly about the posterior extremity of the latter. 
The colour of the larva is pale putty-colour, almost 
white, with a medio-dorsal smoke-coloured. stripe, 
which grows gradually paler as it approaches the 
head; lighter and darker stripes are discernible on 
the sides of the body; the lowest on each side is the 
darkest, and is undulating; the spiracles are black, 
and below the skin-fold, more especially on the third, 
fourth, and fifth seoments, is a vague blotch of black. 
The larva feeds on Stellaria media (common chick- 
weed) ; and my kind friend Mr. Doubleday, who sent 
it to me, accompanies the insect with the following 
note :—‘** Like the larvze of all the Acidalix, they are 
dificult to keep through the winter, even upon plants 
growing in pots; only four out of twenty which I had 
survived the winter ; and this morning I found three 
of them had gone down.” It was full-fed, and buried 
in the earth on the 18th of May, 1872. (Hdward 
Newman; Ent., July, 1872, VI, 139.) 
ACIDALIA EMUTARIA. 
Plate CXIX, fig. 6. 
Through the kindness of Messrs. Fenn and A. H. 
Jones, I am enabled to give some account of the 
earlier stages of this species. 
The egg-laying female was captured on the 13th 
July, 1866, in a cultivated marsh, flying amongst the 
