166 [July, 



the ground being almost uniformly suffused with a leaden-grey colour, with the 

 veins and costa standing out conspicuously darker. Mr. R. S. Searle, three specimens 

 of BorJchausenia {(Ecophora) pseudospretella, Stt., found about three inches under 

 ground when pupa digging. Mr. J. T. Fountain, a piece of cork into which a 

 larva of Acroni/cta psl had bored its way to pupate. Mr, T. Gilbert Smith, a log of 

 larch containing Tetropiuni vrawsliayi, and gave details of its life-history, &c. He 

 said that it feeds only on larch trees which have just begun to fail. So few trees 

 were in just the right condition at one time, as a rule, that he thought the beetles 

 must possess some very powerful sense to enable them to find them. Mr. C. J. 

 Wainwright suggested that it was perhaps after all by chance that they found the 

 right trees ; that they laid eggs in many trees and that the larvae perished in the 

 unsuitable ones, and started fresh colonies in the suitable ones. Mr. E. C, 

 Rossiter thought, however, the beetles were guided by the sense of smell. He 

 reminded Members that turpentine was very attractive, and suggested that perhaps 

 when the trees failed, some chemical change gave rise to a different smell from them 

 which led the beetles to them. He said that to show how powerful these attrac- 

 tions are, some years ago he tried some experiments in the open air in London upon 

 turpentine, orange and lemon oils, &c., and found great numbers of moths drowned 

 in water tanks adjacent, evidently having been attracted by the oils. There were 

 great numbers of Zenzera pyrina, L., which he knew must have come from some 

 distance. 



April ZOth, 1906.— The President in the Chair. 



Mr. R. C. Bradley exhibited a species of Cheilonia taken by himself and 

 Mr. Colbran J, Wainwright at West Runton, Norfolk, in 1900, It had remained un- 

 recognised until now, but Mr. Gr. H. Verrall having sent a couple to Herr Becher, it 

 was pronounced by him to be C. velutina, Loew, a species new to Britain, Mr. J. 

 T. Fountain, a varied series of local forms of Hyhernia marginaria, Bleh., including 

 a remarkably pale specimen, very pale, and quite bleached looking, and somewhat 

 undersized ; it was taken at King's Heath on April 1st, 190fi, The majority were 

 dark, tending towards var.fuscata, Mosley, which is a common local form. Mr. J. 

 Simkins, JI. marginaria, both light and dark forms, from Solihull ; also specimens 

 of Macrothylacia rubi, L., which he had succeeded in rearing by forcing. He fed 

 them on oak, hibernated them in moss out of doors, kept them out of doors until 

 January, and after waiting until they had been frozen hard brought them in to a 

 temperature of 90° ; in two days they spun up, and in a fortnight emerged. He 

 considered the secret of his success to be owing to the fact that he had allowed 

 them to be frozen first before forcing them, Mr, H. W. Ellis, Amara nitida, a 

 beetle which was not uncommon at Knowle, though very rare elsewhere. Mr. T. 

 Gilbert Smith, a number of working drawings of the larvae and pupae of Coleoptera ; 

 one showed a very remarkable larva apparently of a Laraiid beetle allied to 

 Mesosa nuhila, but whilst the hitherto unbroken rule in the Lamiidx was that the 

 larva was legless, this showed remarkable rudimentary legs. Unfortunately the 

 larva was unique and died, so that it remains unknown, Mr, G. T, Bethune-Baker, 

 a collection of Lepidoptera made by himself in the Lake District last year. Also 

 two moths which had already been shown by Mr, W. E, Collinge and described as 



