28 
that he had, since he read his paper in May last, looked up the 
Zoologist, 1847, for Palmer’s description of B. callunae, but found that, 
although there was a very complete description of the early stages, 
there was no mention of the imago. The antennae, however, were 
somewhat fully dealt with. Mr. J. C. Warburg stated that the data 
given by Palmer did not prove to be correct when a number of 
specimens were carefully examined. Mr. Warburg exhibited a very 
long series of Bombyx quercus and Bovribyx spartii, from Cannes. He 
stated that he had separated the larvae by certain markings mentioned 
by Milliere, Constant and Guen6e, as being characteristic, but that 
certain larvae might be classed with either group, and, as a result, he 
failed to find any clear distinction between the imagines bred from the 
larvae thus selected. Mr. W. Hewett, of York, sent a very interesting 
series of specimens, consisting of—(1) nine female callunae, all bred 
specimens, selected from a great number of females, and including a 
very striking pale aberration, another without the whitish band on 
the hind-wings, also a male with the bands suffused with olive 
colour; (2) eight male callunae, bred, and two male quercus, one from 
Beverley, Yorks, and the other from York ; also a half-grown larva 
of callunae, and two cocoons of callunae. Mr. Hewett notes :—“ I do 
not possess any cocoons of B. quercus, but those that I have seen have 
been lighter than those of B. callunae Mr. Nicholson exhibited a 
series of 1 $ and 6 J , undoubted quercus, bred from a female, taken, 
newly emerged, on a gate-post on top of the cliff's, at Overstrand, 
near Cromer, 26th July, 1894 ; 4 males, attracted by her, were 
also shown ; also a pair of Yorkshire callunae, and a specimen 
taken flying over a heathy bit of land at Bingwood, Hants, 
probably in August, 1880. The date of this capture was uncer¬ 
tain, but Mr. Nicholson remembered that Hipparchia semele was on 
the wing, and in good condition, when the specimen was taken. This 
specimen united several of the characteristics supposed to distinguish 
quercus from callunae. Also a series of one $ and six $? , undoubted 
callunae, bred from a female, captured at dusk, while ovipositing, 
flying along a grassy, herbage-covered bank between two fields, at 
Pwllheli, N. Wales, July 17th, 1895. There was no moorland or 
heathy ground near, and the land round about was only a foot or 
two above sea-level. The larvae of both broods were hatched about 
the same time after the eggs were laid, and were treated in exactly 
the same way, being kept indoors in a warm room, and fed at first 
on willow, bramble, and hawthorn, and afterwards on privet and ivy, 
till full fed. The quercus pupated during January, 1895, and the 
first imago (a female) appeared on June 4th, 1895. The callunae 
had all pupated before Christmas, 1895, and the first imago (a 
female) emerged April 4th, 1896. A good many larvae of both broods 
died, and only about a dozen cocoons in each case were produced; 
the quercus which did not emerge were found to be all males, and were 
apparently unable to escape from the pupae ; the callunae which did 
not emerge were found not to have pupatod at all, the larva) having 
dried up in the cocoon. The cocoons of both broods were exactly 
similar in colour, but in each brood they varied from dark brownish- 
black to greyish ; none were yellow. Mr. Nicholson did not notice 
any difference between the larva; of the two broods in any stage; 
