21 



was that a species whose larvae were gregarious should never 

 be seen in numbers. Mr. Pearce said that his specimens 

 were not taken together. Mr. Weir said that he had cap- 

 tured the species in France and Saxony, but always singly. 

 He also observed that specimens from the more northern 

 parts of America and from Canada were more spotted on the 

 border. Mr. Frohawk said that a relative of his had seen 

 quite thirty examples at one time in Brooklyn Park, one of 

 which had been forwarded to him. Mr. Auld stated that five 

 specimens were taken at Shirley in 1872. Mr. Carrington 

 said that the late Mr. E^edle took thirteen at sugar in the fens 

 during one week. 



Mr. Dennis exhibited a specimen of Vanessa io, L., with a 

 small additional ocellus on each secondary (see also ante, p. 

 18); while below the central costal blotch on the primaries 

 was a smaller dark blotch. 



Mr. Weir exhibited on behalf of Mr. Adye a specimen of 

 Plvsia inoneta, Fab., taken at Christchurch, Hants, in 1893, 

 and a nearly black specimen of Venilia inactilaria, L., from 

 the New Forest. 



Mr. H. Williams exhibited two specimens of Pieris 

 brassici-B, L., of a peculiar brown tint in colour, this appear- 

 ance having been caused by killing the insects with liquid 

 ammonia, and allowing them to come in contact with a 

 sponge damp with that fluid. It was noticeable in one 

 specimen that an equal area in each of the forewings ap- 

 peared to be but slightly affected in colour by the action of 

 the ammonia. 



Mr. Frohawk exhibited a series of Argynnis euphrosyne, 

 L., bred from ova deposited about the 24th of May, 1892, 

 and which hatched in the beginning of June. The young 

 larvae commenced hybernation at the end of July, and did 

 not finish until March 20th, 1893. The first pupation was on 

 April 25th and the first emergence on May 14th, 1893. Thus 

 the larval stage occupied nearly eleven months. The parent 

 was from Tilgate Forest. 



Mr. Weir exhibited Eiicheira socialis, Westw., a Pierine 

 butterfly, which, in the opinion of Dr. Dixey, was the most 

 archaic form of the sub-family extant. This very remarkable 

 species had been described by the late Professor Westwood 

 in the " Trans. Ent. Soc," vol. i., p. 44, and a very interesting 

 account was there given of the nests of the larvae, in which 

 they changed to the chrysalis in large numbers, spinning 

 common pear-shaped cocoons, each of which contained some 

 scores of pupae. These nests were described as like the 



