7 
larly in relation to altitude) being easy of cultivation, while those that 
are specialised to some particular climate are the most difficult. 
March 20th, 1900.— Japanese lepidoptera. —Mr. Kaye exhibited 
two boxes of Japanese moths containing almost wholly those species 
belonging to the European Palaearctic Region, many of them being 
found in Britain; amongst the specimens were Heliophila turca, 
Agrotis segetum, Bombycia Jiuctuosa, Malacosoma neustria, Acidalia 
remutata and Porthetria dispar. Mr. Prout also had brought three boxes 
of Japanese lepidoptera containing chiefly those species that were not to 
be found in Europe. Amongst these, however, were some fine Zunosoma 
punctana. Mr. Prout referred to some European Zonosomas also 
exhibited, and called attention to the fact that two species had recently 
been separated by their genitalia and also by their life-histories. 
Phibalapteryx aquata. —Dr. Sequeira, a specimen of P. aquata, 
believed to be British, with several P. vitalbata for comparison. He 
remarked that P. aquata occcurred sometimes on the continent where 
clematis was absent. 
Honeysuckle twisted on birch. —Mr. S. J. Bell, a remarkable 
piece of birch stem with honeysuckle tightly twisted round it. 
Pyrausta purpuralis and P. ostrinalis. —Mr. Kaye, a large number 
of P. purpuralis and P. ostrinalis, mixed, and gave it as his opinion 
that it was not always possible to separate the two, and that for want 
of evidence as to life-histories he did not regard them as two species. 
Mr. Tutt objected and stated that in his opinion they were abundantly 
distinct, and occurred separately and abundantly in many localities ; 
P. ostrinalis, he stated, was in countless numbers at Bourg St. 
Maurice in the Tarentaise, whilst P. purpuralis was entirely absent; 
similarly in Britain the habitats of the two species were quite distinct. 
Invitation from Mr. Hanbury. —A letter was read from Mr. F. J. 
Hanbury inviting those members who wished, to inspect his collec¬ 
tions at his house on March 26th. 
Letter from Royal Microscopical Society. —A letter was read 
from the Curator of the Royal Microscopical Society, bringing to notice 
the name of Mr. Adolf Hempel, who was collecting in Brazil, and 
wished to find buyers for the specimens collected. 
Announcement of conversazione. —It was publicly announced 
that the date for the forthcoming conversazione had been fixed for 
Tuesday, April 24th. 
April 3rd, 1900.— Polyommatus corydon aberrations. —Mr. Clark 
exhibited some finely marked and other specimens of Polyommatus 
corydon, which he had acquired from the collection of the late Samuel 
Stevens; some of the specimens having the spots almost obsolete, others 
with the spots coalescing, whilst some were curious dusky specimens. 
It was stated that some of the specimens were labelled Brighton. Mr. 
Kaye and Mr. Pickett both remarked that aberrations of this species 
were of quite common occurrence at Dover. 
Forced insects. —Mr. Pickett, several insects that he had hatched 
indoors, and stated that Hybernia leucophaearia was taken in nature 
between March 18th and 20th. 
Aporia crat.egi. —Mr. Bacot, hybernating lame of Aporia 
crataegi. 
