108 ACIDALIA ORNATA. 
lines in length, very rugose, and very dark and dingy 
to look at; but witha lens one can see that the back is 
brownish-ochreous, with a pale grey interrupted dorsal 
line, and five dusky As on the middle segments, with 
their apices pointing forward. When full-grown the 
larva is not quite an inch in length, rather slender, 
almost uniform in bulk throughout; the head slightly 
notched, the skin rugose; the spiracular region puffed 
out and puckered. ‘lhe ground colour of the back is 
brownish-ochreous; the dorsal line fine and inter- 
rupted, darkest near the head, afterwards showing 
pale grey, edged with dusky; subdorsal line dark 
brown, commencing very distinctly on the head. On 
each segment from the fifth to the ninth there are two 
obtuse dark Vs, one pointing forward, the other back- 
wards (their arms reaching nearly to the subdorsal line, 
and terminating in the usual four dots), and between 
them enclosing a blunt diamond of the ground colour, 
through the centre of which the dark-edged dorsal 
line shows distinctly. The posterior segments are 
marked only with the dorsal and subdorsal lines, and 
the usual four dots in each, here showing more dis- 
tinctlyas being not confounded with the other markings. 
The spiracular stripe pale ochreous, freckled and 
edged below with dusky ; the body pale grey, freckled 
and mottled in the same way. 
Certainly mint seems to have suited the growth of 
these larve better than thyme, but I perceive that 
after they have once tasted the latter they will not 
leave it for another food. (John Hellins, February 
7th, 1866; E.M.M., July, 1866, III, 44.) 
ACIDALIA INCANATA. 
Pl. CXVIII, fig. 5. 
On September 7th, 1875, I received half a dozen 
young larve of A. promutata |incanata of Stainton’s 
Manual] from Mr. J. G. Ross, of Bathampton, 
