47 



Mr. R. Adkin exhibited a series of Dianthcecia nana, Rott., 

 and D. capsincola, Hb., bred from larvae taken in North 

 Devon, and called attention to the former species, which he 

 considered exhibited some peculiarities, one specimen having 

 a faint rosy tinge. 



He also exhibited on behalf of Mr. H. Murray of Carnforth 

 a specimen of Boinbyx guercus, L., var. calhince, Palmer, in 

 which the outer half of each wing appeared to be devoid of 

 scales, and consequently transparent ; but the fringes were 

 of the usual brownish colour, and showed in strong contrast 

 to the borders of the wings. The specimen, a rather under- 

 sized female, was seen to emerge from pupa, and the 

 peculiarity was noticeable before the wings expanded. 



Mr. Adkin further exhibited specimens of the everlasting 

 pea (Lathyrus sylvestris, L.), in both flower and seed, from 

 Willow Wood, Eythorne, Kent, where it was found growing 

 in some profusion along a hedge, for a distance of about 

 fifty yards, by the roadside. 



Mr. T. W. Hall exhibited a male specimen of Lyccena 

 bellargus, Rott., taken some time ago at Folkestone, in which 

 the underside of the left secondary was destitute of spots, 

 and the white of the submargin was much suffused towards 

 the base of the wing. It was an individual of the first 

 brood. 



Mr. Tutt read a paper on the " Variation of Erchia cEthiops " 



(P- 77)- , 



Mr. Carrington said that while collecting shells on the 

 South Downs he had found a considerable area of the local 

 plant Silene nutans, L., eaten by some species of Dianthcecia, 

 and suggested it might be D. alhiuiacula, Bork. 



Mr. Tutt said that he had taken a considerable number 

 of Zygcena exulans, Hoch., in the Southern Alps this year, 

 some of them being very bright metallic green and typically 

 Swiss, while some were semidiaphanous and an approach to 

 the Scotch form. Each valley seemed to have a local race 

 of the species. 



Mr. Knock exhibited under the microscope an egg para- 

 site in the act of piercing and ovipositing in a lepidopterous 

 ovum. The species was Trichogramma evanescens, and was 

 ^ mm. long, many specimens emerging from the egg of an 

 ordinary Noctua. The females were winged, while the 

 males were apterous. He had for some time had them 

 under observation, and now possessed the seventh brood in 

 succession. The cycle of metamorphosis took place in about 

 a fortnight. He had cut out the egg immediately after it 



