ACIDALIA CONTIGUARIA. 95 
of dark brown elongated diamonds begins; this con- 
tracts to a double dorsal line, but is much darker, on 
the hinder segments ; the usual dots black, emitting 
bristles ; the spiracular region puffed and puckered, 
bordered below with a broad irregular stripe of dark 
brown; the centre of the belly of an ochreous-brown. 
When disturbed the larva draws back the front 
seoments, but I did not see it twist into a coil. 
Understanding that the food must be Hmpetrum 
mgrum, we troubled our friends to send us a supply of 
this plant out of Yorkshire, and then soon found that 
ling, whitethorn buds, and Polygonwin aviculare were 
just as acceptable! ‘The two moths emerged on the 
27th June andthe othJuly. (John Hellins, July 12th, 
1866; H.M.M., August, 1866, III, 69.) 
ACIDALIA RUSTICATA. 
Plate CXVII, fig. 6. 
. Whilst rearing this species from larvee kindly sent 
by Mr. T. Hedle, Mr. Buckler and I have made a few 
notes, for which I venture to think the descriptions of 
Mr. Newman and M. Milliére have still left room. 
We received the larve in September, 1865, then 
about half-grown, and feeding on tender leaves of ivy 
and lilac ; but after hybernation we found that having 
by chance got hold of some withered bramble leaves, 
they preferred them to any other food. They spun up 
about the beginning of June, 1866, and the perfect 
insects appeared from the 8th to the 20th July. 
M. Milhiére speaks of this species as double-brooded, 
and describes the larva of the summer brood, which 
feeds up quickly ; but in England it seems there can be 
but one brood, for there would not be time for another 
between the middle of July and the beginning of 
September—when we received our larve. 
I do not know whether there is more than one form 
