109 



to perfection. Mr. R. Adkin and Mr. Tutt corroborated this 

 view, and remarked that this species was especially resentful 

 to a change of habitat. 



In proof of the recent extraordinarily fine weather, Mr. 

 Tutt mentioned that Melitcea cinxia, L., and other June 

 species were now on the wing in Guernsey, and that Lyccena 

 argioluSy L., was flying at Hereford during the first week in 

 April. Mr. R. Adkin drew attention to the rare occurrence 

 of blackthorn {Prunus spinosa) and whitethorn {C'^atcBgus 

 oxyacanthd) being in blossom at the same time. 



In the course of some remarks upon Colias edusa, Fb., 

 Mr. Tutt said it had a good chance of hybernating here 

 last winter, if it ever did so in this country. In Algeria and 

 Morocco it could be got in all its stages, with the exception 

 of the egg, nearly the whole year through, and that in the 

 Mediterranean littoral, it practically did not hvbernate at all,, 

 but one brood followed the other in rapid succession. 



AIAY nth, 1893. 

 C. G. Barrett, Esq., F.E.S., Vice-President, in the Chair, 



Mr. R. South exhibited a series of Diurnea fagella, Fb., 

 taken in a wood in Buckinghamshire, the light and dark 

 forms being in about equal proportions. Mr. South said that 

 the trees in this particular wood were dark on their western 

 side, with a lichenous growth, and on their eastern side pale 

 coloured ; and at the time he collected these specimens the 

 wind was in the east, and consequently all the moths were at 

 rest on the western side of the trees, the dark ones being very 

 inconspicuous. He thought that if this were generally the 

 case when this species was on the wing, it would naturally tend 

 to produce a dark race. 



Mr. Barrett in referring to the difficulty of breeding Bombyx 

 castrensis, L., away from its natural haunts, said that the 

 larvae should be well wetted at times, and exposed when 

 possible to the sun ; and he thought the absence of the latter 

 in some seasons might account for the sporadic appearance 

 of this species. Mr. Turner said he had bred B. castrensis 

 very successfully on rose leaves dipped in salt water. This 

 discussion was continued by Messrs. Tutt, Frohawk, and 

 South. 



Mr. Adye exhibited long series of Monia orion, Esp., 

 Eitrymene dolabraria, L., Amphidasys betularia, L., Hylophila 

 prasinana, L., and Dasychira pudibunda, L., and odd specimens 

 oi A crony eta alni, L., Notodonta chaonia, Hb., A^. dodonea, Hb.^ 



