9 
Mullerian Association.— Mr. W. J. Kaye, a Mullerian Association 
of lepidoptera from the Potaro River, British Guiana. The individuals 
consisted of day-flying moths, with a single butterfly. The group 
was made up of the following species : Syntomidae, Agyrta micilia 
and Euagra coelestina Hypsidae, lostola divisa. Geometridae, Pseu- 
darbessa decorata. Erycinidae, Esthemopsis sericina. All had irridescent 
blue and transparent wings. They had all been caught on the same 
road, and it was stated that the Agyrta was the most abundant of 
the group, and probably the type towards which the others were 
converging. 
Spilote grossulariata aberrations.— Mr. J. Riches, Spilote 
grossulariata, with some extremely light forms, with very little 
spotting on the hindwing. 
Exhibits of Angerona prunaria.— Mr. V. Eric Shaw, a series of 
Angerona prunaria. Mr. C. P. Pickett, four drawers of the same 
species, the result of four years’ interbreeding from an original pair. 
Mr. H. E. Page sent some of the same species for exhibition. 
Arctia latreillei.— Dr. T. A. Chapman, a fresh-bred specimen 
alive of Arctia latreillei. 
Paper.— Mr. C. P. Pickett read a paper, “ Notes on Angerona 
prunaria" (vide Ent. Bee., xv., pp. 144-149). He described the locality 
Raindean Wood, near Folkestone, where he made the acquaintance of 
certain forms of this moth at the end of June, 1898. It appeared to 
be on the wing a very short time—little more than half an hour. 
From a $ obtained in this locality, paired with a J from Epping 
Forest, he obtained 150 eggs. Mr. Pickett gave interesting details of 
how best to hybernate the larvae, and how he had found that they did 
not survive cold weather well out of doors, but that indoors, or in an 
outhouse, they did well. He had found that by placing small twigs 
of the foodplant in a bottle with a little water the plant kept a long 
time without going mouldy, and that the larvae could then nibble 
whenever they were so inclined, generally up till the end of September, 
when they settled down head downwards. The average number of 
eggs laid by one $ was from 150-200. The time of appearance of the 
imagines was from the end of May till the end of June in all the 
broods reared, the protection afforded in the winter not inducing the 
moths to complete their metamorphoses any earlier than they normally 
would out of doors. Many drawings were handed round showing 
details of'the life history. One of particular interest was that which 
gave the pupae within curled up leaves of lilac, which they had been 
purposely given to pupate in on account of the large size of the leaf, 
while they had actually been fed up on privet. 
Mr. A. W. Mera, at the close of the paper, remarked how 7 successful 
Mr. Pickett had been in being able to continue interbreeding this 
species. He personally had had no experience with the insect, and, in 
fact, rarely, if ever, with any species could he continue a race for more 
than two generations. The reason w 7 as, perhaps, explained by his 
employing cylinders for cages, and thus weakening the lame. Mr. 
L. B. Prout proposed a vote of thanks to Mr. Pickett for his very 
interesting paper. Mr. W. J. Kaye seconded the vote, and remarked 
on the small number of eggs laid, particularly compared wdth the 
Ennouiids. Mr. C. Nicholson enquired if Mr. Pickett had ever 
obtained an orange-coloured $ . It was significant that the band in 
