THE YOUNG NATURALIST. 



97 



slightly beyond the discoidal black spot, the inner edge curving outwards, not 

 extending beyond the first median nervule, thus leaving the hinder angle 

 white ; this disposition of marking he found perfectly constant in those cap- 

 tured. In the Continental specimens the orange spot extended considerably 

 beyond the discoidal spot, and was continued to the inner edge of the wing, 

 causing the hinder angle to be orange. The distinction pointed out was very 

 small, but if it were constant our A. cardamines was an insular variety easily 

 separable from continental specimens. Mr. B. Wadham exhibited a robin 

 ( 'Eriihacus rubecula) , having the plumage on the head a dull white; the 

 specimen was found dead in his garden at Lewisham, in 1878, and a similar 

 specimen was noticed two years later, and asked whether this was caused by 

 age or variation. Mr. Weir said it was undoubtedly a variety, and Mr. Fro- 

 hawk thought the bird was a young one. Mr. Tutt read a paper " The 

 Morphology and Physiology of an Insect," which was followed by discussion. 



April i'Ztk, — The President in the chair. Mr. Slater exhibited a Bombyx 

 from Zululand, which he said approached nearest to Bombyx oubie taken by 

 M. Guerin in South Abyssinia, and might be a local variety of that insect, 

 if not it was a new species. Mr. J. Lee varieties of Tceniocampa munda, 

 light specimens without the twin black spots. Mr. Henderson, forms of 

 Satyrus semele and Cucullia verbasci from various localities with a view of 

 illustrating the local variation of the species. Mr. Adkin, bred specimens of 

 Glostera anachoreta, from Saltwood. Mr. J. T. Carrington thought that the 

 species was no doubt introduced to this country with the balsam poplar, and 

 gave many instances which he had met with of various species being intro- 

 duced by the importation of plants. Mr. Tugwell, grey and black forms of 

 both sexes of Nyssia hispidaria, which he stated were all bred from one batch 

 of eggs, there was, however, very little variation in the larvse. Mr. J. Jenner 

 Weir, specimens of Pieris brassicce from St. Petersburg (lat. 60°), Lewes and 

 Blackheath (between lat. 50° and 5£°), Hyres (lat. 43°), and remarked that 

 # the species did not differ from places so remote either in marking or in size. 

 Mr. T. E. Billups, a living specimen of the genus Aspidimorpka, which he 

 said was an apparently new species, and was brought from Upper Burmah, 

 amongst the roots of an orchid Denbrobium brymeriarum. The Secretary read 

 a note from Mr. T. D. A. Cockerell, with reference to an exhibit of a new 

 rose gall from Custer, Co. Colerado, which had been pronounced by Mr. L. 

 O. Howard of the U.S. Department of Agriculture to be the product of an 

 undescribed species {Rhodites tuber culator, Biley), specimens of which were 

 contained in the collection of the Department. Mr. Jenner Weir exhibited a 

 bloom of Narcissus cyclaminous, produced by a bulb collected in Spain, and 

 remarked that the species had been described by Parkinson, in his " Paradi- 



