of 1886 was recorded in the Trans. Chichester and West Sussex Nat. Hist. 
Soc., n.s., No. 5, and quoted by me in Ent. Ttec. iii., p. 151. Dr. Buckell 
in 1892 bred one red specimen from a dark banded $ , which may, 
however, have been intermediate rather than quite typical black; and 
Mr. Harwood of Colchester also, in 1892, bred three specimens, which 
he describes as “ reddish but so much darker than ferrugata that they 
look more like intermediate forms ” amongst a lot of black specimens, 
from three or four black $ s captured near Colchester in 1891; but 
even here one of the $ s may not have been really typical black, as the 
dark red specimens often appear blackish when worn. If, however, 
the parents in these cases were really black, I can only suppose that 
the $ was of the red form. 
In connection with the influence of heredity, I may say that it 
seems exceedingly strong in both species, so that many broods which 
have passed through my hands have such a strong family likeness that, 
if mixed among other specimens, it would not be difficult to sort them 
out again. The differences are sometimes so striking that Mr. R. South, 
having two bred broods of ferrugaria, Haw. before him, at one time 
almost inclined to think we had two species mixed under the one name; 
he kindly allowed me to inspect the series in question, and I saw that 
there would be good ground for the idea were it not that an occasional 
variable brood combines the different characters. A glance into my 
drawers exhibited this evening will show some good examples of 
heredity, the broods being kept carefully separate. 
On this ground the species will offer a very good field for experi¬ 
ments in pedigree breeding, which I hope to take in hand, and for 
which I shall be thankful for assistance in material, especially ova from 
red forms of unidentaria, Haw. I have already commenced from a - 
broad-banded black £ (labelled “G” in my drawer), and some of its 
characteristics are very well produced in the last specimen following it, 
which is a recently emerged specimen of the second generation, 
obtained from a pairing of two of the offspring of the said ? ; another 
still on the setting-board is similar. 
I will next deal, as well as time permits, with the variation of each 
species separately. 
As I have already shown under the head of synonymy, I regard 
the red forms as furnishing the type of what we call unidentaria . 
Avoiding the doubtful name ferrugata, we may call this type corcidata 
Hfn., when unidentaria Haw., from its general constancy, is well worthy 
to be dealt with as ab. unidentaria, in which light, rather than as a 
distinct species, Dr. Staudinger is now inclined to regard it. Packard, 
the American entomologist, speaks of it as “ a good example of 
melanism, as it occurs only in Northern Europe and the Northern 
American States, &c. Whether it is “ melanism ” or not, his knowledge 
of its geographical range is defective. 
Hufnagel’s description of corculata, is as follows :—“ Reddish-brown, 
on the outer margin a black C, at the base yellowish-grey.” This of 
course is so vague as to be practically useless, but “ reddish-brown ” 
agrees well enough with some of the “ purple ” forms, to allow of our 
uniting this name with ferrugata, Linn., and leaving the well-known 
name of unidentaria, to the black forms. The American red specimens 
(ferrugata, Packard), certainly belong to this species, and seem to have 
the central fascia generally narrower than is common in European 
