216 [Sei)tember, 



ou June 24th ; Mr. Froliawk, Argynnis aglaia in Kent on June 25tb, and 

 Aglais urticae common at Horsley on June 17th ; and Mr. Pearson, Arytjnnis 

 luiplda and Limenitis sihilla in numbers in the New Forest. Mr. Main described 

 a successful method of getting tlie larvae of tlie Coleopteron Dijtiscus maryinalis 

 to pupate in confinement. 



July IQth, 1917.— The President in the Chair. 



The 'Proceedings ' for 1916-17 were announced as ready for issue. 



Mr. Aslidown exliibited a series of the pale and dark races of Setiiia 

 irrorella from Mickleham Downs, and larvae, pupae, and imagines of Anisa- 

 sticta 19-punctata from Surrey. Mr. H. Main, a pupation-cbamber of 

 Dytiscus marginalis with pupa in situ, and several chrysalids of Vanessa io 

 most of which had gold markings. Mr. Edwards, various exotic species of 

 Hesperiidae and read a note on the distribution of the family, Mr. West 

 (Greenwich), a number of Vespidae, Ichneumonidae, and Chrysididae taken by 

 him recently in the New Forest. Mr. Hy. J. Turner, a specimen of Argynnis 

 cydippe (adippe) with silver points in several of the large black spots on the 

 under surface, a phase of aberration not previously known to him. Attention 

 was called to the swarms of the three common species of " whites " which had 

 appeared in many places i-ecently. Folygonia c-album, Celastrina argiohis 

 (2nd brood), and Cosmia tru'pe.zina were also reported as abundant locally. — 

 II Y. J. Turner, Hon. Ed. of Proceed in ys. 



INJURY TO PUPA AND MALFORMATION OF IMAGO. 

 BY T. A. CHAPMAN, M.D., F.Z.S. 



I met recently -vvitli an example of a pupa having been injured, 

 apparently whilst the imago was in a very earl}^ stage, with tlie result 

 that the imago, though it thoroughly matured, did not, and I suppose 

 could not, emerge owing to certain malformations that seemed to have 

 some bearing on questions of regeneration and recovery from injury and 

 loss of parts. The pupa was one of Gastropacha qnercifolia. It had 

 not emerged at the expiry of about a fortniglit after its fellows, and on 

 examining it it appeared to be dead. It turned out, however, to be 

 alive, though its vitality was very low. The imago had obviously been 

 mature for some time, but unable to emerge ; the wings, unexpanded, 

 were dr^^, stiff, and hard, showing the due season of emergence had 

 elapsed for some days at least ; the abdomen was bathed with the 

 meconial fluid that escapes on emergence. When freed from the pupal 

 skin it could move the wings and antennae and third legs. The first 

 two pairs of legs were malformed and immovable, though easily freed 

 from the pupa-case. The pupa-case had been bruised and broken across 

 these legs and a crack had extended across the left wing. There had 

 been enough bleeding to cement the pupa-case in this region to the 

 cocoon in a way that was not released by maceration. 



