THE YOUNG NATURALIST. 



[AuGusf 



where they were captured. Mr, Billups said that the specimens had probably been 

 brought here in these ; some years before a number of Dutch baskets were stored in 

 the Borough Market and from these a quantity of the species now exhibited were 

 bred. Mr. Tugwell showed a collection of plants from the north. 



A discussion on the effect of temperature affecting the emergences of Lepidoptera 

 in which Messrs. Carrington, Fenn, Tutt, Tugwell, South and Adkin took part 

 brought the meeting to a close. 



July 10th, 1890. — W. H. Tugwell, Esq., Vice-President, in the chair. The Rev. 

 C. Thorn will, Rev. E. C. Dobree-Fox and Mr. B. A. Bristowe were elected 

 members. 



Mr. Wellman exhibited a variable series of one hundred examples of Eupithecia 

 rectangulata, taken at Streatham Hill from six apple trees. Dianthcecia cucubali, Liver- 

 pool. D. carpophaga, var, capsophila, from Isle of Man and S. Scotland. D. 

 conspersa, from Surrey and Ireland. Mr. Jager also D. carpophaga, from South Wales 

 and the variety Capsophila, from the Isle of Man, and D. casia, from the same locality. 

 Mr. R. Adkin, Coremia propugnata from Surrey, varying in width and density of 

 colouration of central band, also Eupithecia nanata, from Hants and Surrey and called 

 attention to the extreme variability of the species. Some observations were made on 

 this latter exhibit of Mr. Adkin, in the course of which Mr. C. G. Barrett and Tutt 

 expressed opinions that Curzoni was only an extreme form of E. satyrata. M. Gerrard 

 showed Emydia cribrum and case of Psyche villosella, from the New Forest. Mr. 

 Mansbridge, Xylophasia rurea, var. combusta. Mr. Dennis, a pale specimen of 

 A vgynnis euphrosyne, from Dorking. Mr. Croker, Nola cucullatella, from Kent. Mr. 

 E. Joy, Meliana flammed, and Nascia cilialis, from Wicken Fen. Mr. Howard 

 Vaughan, Melitaa avtemis, Ccenonympha typhon, Nemeophila russula, Crambus sylvellus, 

 Scopavia ambigualis, and var. atomaUs from North Knapdale, S. ambigualis, var. 

 atomalis, Hypsipetes impluviata and Coremia propugnata, &c, &c, from Kilmartin Parish, 

 Argylshire, dark forms of Larentia pectinitaria, and two male Pvocvis which differed 

 considerably from P. statices and upon the identity of which the members did not 

 hazard an opinion. Mr. Vaughan remarked that they appeared to him to be inter- 

 mediate between slat ices and globularia. Adverting to Colonel Blaithwayt's com- 

 munication to the Entomologist's Monthly Magazine for the month of April last, p. 

 109, Mr. Jenner Weir exhibited specimens of the two forms of Volucclla bombylan; 

 which mimicked Bombus lapidarius and Bombus terrestris respectively, stating that he 

 fully concurred with the Colonel in considering that this remarkable demorphic 

 condition of the Volucclla assisted it to become parastic upon two species of Bombus 

 differing both in colour and markings. He also exhibited a specimen of the Volucella 

 which he had recently taken at Bournemouth in which the mimicking was imperfect, 

 inasmuch as the arrangement of the colour resembled that of Bombus lapidarius but 

 instead of the hairs at the end of the abdomen being red they were of a yellowish 

 colour as in the mimic of Bombus terrestris. He showed also a specimen of the large 

 worker of Formica rufa to the antenna of which was attached by the closed jaws, the 

 head and part of the thorax of another ant with which no doubt it had fought and 

 destroyed the abdomen and most of the thorax of its adversary but could not detach 

 *he head. 



