101 



Leptura scutellata, Mesosa niihila, Ano-plodera sexguttata, Gram- 

 moptera praeusta, Clytus arietis, Anitys riibens, FAater sanguinolentus, 

 Elater mhiiatns, Trachys troglodytes, Ayrilus viridis, Colydium 

 elongatum, Thymalns limbatns, Ips 4-guttata, Ischnnmera sanguini- 

 collis, Aphodius niger. 



Messrs. B. W. Adkin, R. Adkin, Hy. J. Turner, A. E. Gibbs, and 

 F. W. Cowham, exhibited series of Lasiocawpa quercns and Mr. B. 

 W. Adkin subsequently read notes on the species. 



Mr. Gibbs showed a male with complete female coloration from 

 the New Forest. 



Mr. Cowham exhibited a female w^hich was bred from a larva 

 taken at Epsom. It was two j'ears in pupa, emerged in May and 

 was of the form var. call time. He also showed a specimen in 

 which the conspicuous white discoidal spot was duplicated on the 

 ■3ft forewing. 



Mr. Robert Adkin also exhibited long series of Lasiocampa 

 quercns from Scotland and North and South England, the moat 

 remarkable specimen being a gynandromorph in which the wings 

 and antenna on the left side were normal male, while on the right 

 side the antenna was normal female, but the wings, although of 

 female size, were of male coloration, and in the hindwing the usual 

 pale band was practically absent. He said that it was many years 

 since he had reared this species in any numbers, but he well 

 remembered that the conclusion he then came to was that there 

 was no clear dividing line between L. qaercm and its variety 

 calluniE. 



Mr. B. W. Adkin read the follow^ing notes on his exhibit : — 



"At our last meeting I exhibited specimens of Pachygastria 

 trifuUi, showing a range of ground colour from palest yellow (ab. 

 pallida-fiava) to deep foxy red-brown (ab. rufa). That insect is, I 

 think, the most variable of all the Lachneides. To-night I am 

 exhibiting specimens of another species of the same family for the 

 purpose of tracing a similarity in variation of ground colour, and I 

 am pleased to say several members are supporting." 



" Lasiocampa qnercm. — With regard to this species Tutt states that 

 " the study of the variation is exceedingly interesting and difficult." 

 I am in entire agreement with this statement. " Besides colour 

 aberrations, in which individual specimens may vary from the dark 

 chestnut brown of the most extreme male forms to the yellow of 

 the female forms, the character of the pale transverse band also 

 varies from a narrow line to a wide band that may spread to the 

 outer margin of the wing, and offers a basis of variation for a great 



