Ill 



of its breaking up. Although the black form of mcerta is 

 not scarce at Lee, not one was bred from this batch of eggs. 



Mr. Tugwell, referring to Mr. Fenn's exhibit, stated that 

 the brood did not always follow the form of the parent, and 

 instanced Acidalia aversata, L., from a large brood bred from 

 a captured female, not a single one followed the parent 

 female, but, in reply to Mr. South, said he did not see the 

 male. 



Mr. South said he found that in breeding Lepidoptera the 

 brood generally followed any peculiarity in either the male or 

 female parent, but more especially the female. 



Mr. Mansbridge exhibited a melanic specimen of Phigalia 

 pedaria, Fb., which was taken in a boggy wood near Leeds. 



Mr. R. South referred to the Pygcsra curhila^ L., exhibited 

 at a previous meeting by Mr. A. Robinson, and remarked 

 that a similar form had been recorded by Mr. Whittick, and 

 an analogous variety of P. pigra, Hufn., had been figured by 

 Stephens. 



The remainder of the evening was devoted to an exhibition 

 of microscopical objects by members. 



APRIL ^th, 1891. 



W. H. Tugwell, Esq., Ph.C, President, in the Chair. 



Mr. A. H. Hamm was elected a member. 



Mr. R. Adkin exhibited specimens of Pcedisca sordidana, 

 Hb., from Forres. 



Mr. South remarked that these specimens were very unlike 

 those from North Devon, which were larger and brighter. 



Mr. South exhibited three specimens of Miana strigilis^ 

 Clerck, var latruncida, Lang, received from Mr. Jeffreys. 



Mr. R. South said with regard to the T. incerta, shown 

 at the last meeting by Mr. Fenn, that the majority resembled 

 the female parent. On the whole question of variation he 

 was inclined to think the law of inheritance had a great deal 

 more to do with it than was generally allowed, and he referred 

 to a recent record of pheasants with white plumage increasing 

 year by year apparently from a single white specimen. Mr. 

 Carrington remarked that change of environment or climate 

 might lead to temporary variation in a species, but in his 

 opinion, either a new form was developed, or there was a 

 reversion back to the ancestral form. Mr. Fenn, with regard 

 to his specimens of incerta, said, in his opinion, the variation 

 was hereditary, and was not due to the surroundings of the 

 pupa. As to alteration of colour in animals and insects, this 



