226 



THE YOUNG NATURALIST. [December 



fed on the tops of the trees. Mr. C. G. Barrett said the species was an abundant 

 one on the Continent. Mr Hawes examples of Argynnis euphrosyne, showing con- 

 siderable variations in the black markings. Mr P Bright, two varieties of Arctia 

 caja, one very dark, and the other an extremely pale form, also a series of Triphcena 

 subscqua, from Forres, Mr Bright said he had written for further particulars of the 

 specimen of Vanessa exhibited by him on the 25th ultimo, and which was stated to 

 have been taken at Polegate, he understood that Mr Weir referring to this specimen 

 had expressed an opinion that it was an example of Vanessa Milberti. Mr. Cockerell 

 exhibited a cocoon of Zygcena filipendulce, from near Leigh, Essex, not uniformly 

 yellow, remarking that sometimes the cocoons of this species were half yellow and 

 half white or whitish. He also showed Myzins sexcincta, from Long Island, and said 

 that this species was found by Dr. Riley in the stomachs of sparrows, in thirty 

 instances thus showing that its wasp-like attributes did not protect it from that bird, 

 also a Tipulid fly allied to Tipula but apparently belonging to a new or little-known 

 genus from Swift Creek, Auster Co., Colorado, where it mimics a species of 

 Ichneumonidse found in the same locality. 



10th November, 1890. — W. H. Tugwell, Esq., in the chair. Messrs. G. Champion, 

 of St. John's Wood, A. J. Hodges, of Highbury, and A. H. Hill, of Hampstead were 

 elected members. 



Mr Wellman exhibited Bryophila impar, Warren., from Cambridge and a speci- 

 men of B. glandifeva, from Folkestone, very similar to the examples of impar. Mr 

 Tugwell, long series of Cerastis vaccinii, and of C. spadicea, a discussion ensued as to 

 this exhibit in the course of which Mr South said that spadicea, was a form of 

 vaccinii and that the form shewn by Mr Tugwell as spadicea, was known on the Con- 

 tinent as subspadicea, which was said to be a form of 0, ligula, Esp. Mr C G Barrett 

 remarked he had never had any difficulty in separating the two species. Mr R. 

 Adkin, examples of Spilosoma mendica, bred from ova obtained by the pair- 

 ing of a female of the Irish form of the species with a male of the English form, 

 from the ova abtained only two months emerged, both of which were males and 

 neither were like the English or Irish form. Mr. Tugwell remarked that Mr. 

 Adkin having bred the species from the two forms there could no longer be any 

 doubt as to their identity ; the two examples shewn were very like the Yorkshire 

 specimens bred by Mr. Harrison. Mr. Adkin also exhibited Peronea sponsana, from 

 the New Forest and referred to his exhibit of this species in 1889, when nearly all 

 those then shown were the variety ; this year he had endeavoured to obtain the 

 species as it occurred in the New Forest, out of some twenty specimens there were 

 only some four or five of the variety, the others gradually descending to the type but 

 none of them were exactly like those taken the previous year. Mr. Tugwell stated 

 that he had obtained the form now shewn at Blackheath. Mr. Atkinson exhibited 

 a small collection of all orders from Africa, Mr. T. D. A. Cockerell, insects from 

 the Wet Mountain Valley, Colorado to illustrate parallel variation in Diptera and 

 Hymenoptera ; series one, Green to Blue (Metallic colours), series two, Yellow to 

 Red (Pubescence). Mr. Henderson, eggs of the Lesser Black Backed Gull and the 

 Greater Black Backed Gull, and pointed out the difference between the two. Some 



