19 
Nov. 5th, 1901. —Special exhibition of varieties. —A special 
exhibition of varieties was held, the following members providing 
material: Mr. J. A. Clark, a cabinet drawer-fall of Cosmotriche 
•potatovia, and another of Lasiocampa quercfis and L. sub-sp. calltmae ; 
the drawer of C. potatoria containing almost every possible phase of 
this insect. Mr. C. P. Pickett, Polyommatus corydon in large numbers 
from Folkestone, also some very dark Dilina tiliae and Choerocampa 
elpenor, and further, Eurymus hyale with very broad pale apical 
patches; a very interesting series of Lymantria monacha was also 
shown, a race having been inbred since 1891 from selected dark 
parents with a view to obtaining the black form eremita. Mr. C. 
Nicholson, dark Notolophus antiqua, a specimen of Pseudoterpna 
pruinata with very dark suffused forewings, and with the portion 
between the transverse lines filled in with a darker shade on the right, 
and with normal coloration on the left; also a specimen of Barathea 
brassicae taken on sugar at Clapton, having the forewings almost 
unicolorous. Mr. W. J. Kaye, a fine specimen of Graphiphora cerasi 
(= stabilis) with a broad dark fascia on the marginal portion of the 
wing, also a series of gracilis showing dark red, rosy, and yellowish 
forms. Mr. Y. Eric Shaw, a dark 2 of Lymantria monacha and a 
specimen of Porthetna dispar, the latter bred amongst a number of 
L. monacha from the New Forest. Mr. Shaw said, with reference to 
this dispar, he had very little doubt that the larva was taken in a wild 
state in the New Forest. Mr. Russell James, a box containing a large 
number of insects taken this year (1901) in Cornwall, amongst which 
were fine series of Heliophila littoralis and Lycaena anon ; the latter 
insect was stated to have been plentiful. Mr. A. W. Mera, Mala- 
cosoma castrensis of a unicolorous dull dark red, also an exceptionally 
fine Dichonia aprilina with a well-marked black median band across 
the forewings. Dr. Chapman, Parnassius apollo from Spain, the males 
being light-coloured, with faint markings, and near the var. hesebolus. 
A large number of Parnassius delius and P. apollo were also shown 
from Switzerland. It was stated that in Spain the two species ran 
very closely into one another, but that in Switzerland the demarcation 
was far greater. Dr. Sequeira, 1 npliaena fimbriata with Aeiy deep 
chocolate-red forewings, also dark Synopsia abruptana and Choero¬ 
campa porcellus. Mr. H. A. Sauze, Crioceris asparagi, only 25 per 
cent, of which were normal, while 75 per cent, had a tendency to 
produce confluent spots; 9 per cent, of the whole had totally con¬ 
fluent spots. Mr. L. B. Prout, Pharetra menyantliidis types from 
Aberdeen and a melanicvar. from Selby ; Triphaenasubsequa ( = comes), 
the extreme dark var., from Aberdeenshire ; Aporophyla australis var. 
ingenua from Sandown, and Strenia clathrata, an extremely dark var. 
from Horsley, the specimen having the general appearance of Hesperia 
The British form of Acronicta leporina.— Mr. E. M. Dadd asked 
if Acronicta leporina with dark dusting was the typical form, or was it 
a British form. Mr. Tutt said he knew Apatela aceris in England was 
quite different from Continental specimens, and suspected the white 
form of A. leporina was the typical. Mr. Tutt, in referring to Mr. 
dark’s exhibit, inquired if any members knew of any localities not 
being fen localities in which males of Cosmotriche potatoria occurred 
having the coloration of normal females. No one present was able to 
