m-i.] ' 2'6 



Dr. T. A. Chapman exhibited immature specimens of Tceniocamjpa gracilis, T. 

 gothica, T. poptileti, T. munda, T. instabilis, and T. leucographa, whicli had been 

 taken out of their cocoons in the autumn, with tlie object of showing the then state 

 of development of the imagines. 



Mr. F. W. Froliawk exhibited a living specimen of the larva of Carterocephalus 

 Palcemon (Hesperia panisousj, hibernating on a species of grass which he believed 

 to be Bromus asper. The K.ev. Canon Fowler and Mr. H. Goss expressed their 

 interest at seeing the larva of this local species, the imagines of which they had re- 

 spectively collected in certain woods in Lincolnshire and Northamptonshire. Mr. 

 Gross stated that the food-plants of the species were supposed to be Plantago major 

 and Cynosurus cristatus, but that the larva might possibly feed on Bromus asper. 



Mr. C. G-. Barrett exhibited a long series of remarkable melanic and other 

 vai'ieties of Boarmia repandata, bred by Mr. A. E. Hall from larvae collected near 

 Sheffield. 



Mr. W. Farren exhibited, and commented on, four varieties of Fapilio Machaon 

 from Wicken Fen ; also a series of two or three species of Nepticulce pinned on 

 pith with the " Minuten-Nadeln," for the purpose of showing these pins. 



Canon Fowler exhibited specimens of Xyleborus perforans, WoU., whicli had 

 been devastating the sugar-canes in the West Indies. Mr. C. O. Waterhouse stated 

 that the larvae had done great damage to beer-casks in India. 



Mr. E. B. Poulton showed, by means of the oxy-hydrogen lantern, a number of 

 slides of various larvse and pupae, in illustration of his paper, read at the October 

 Meeting, entitled, " Further experiments upon the colour-relation between certain 

 Lepidopterous larvse and their surroundings." He stated that he believed that 

 nineteen out of twenty larvse of Qeometridce possessed the power of colour adjust- 

 ment. Mr. F. Merrifield, the Rev. J. Seymour St. John, and Mr. Jacoby took part 

 in the discussion which ensued. 



Mr. F. Merrifield read a paper, entitled, " The effects of temperature on the 

 colouring of Pieris napi, Vanessa Atalanta, Chrysophanus Phiceas, and Ephyra 

 punctaria," and exhibited many specimens thus affected. In the cases of P. napi^ 

 C. Phlceas, and E. p)unctaria, lie remarked that they corresponded with natural 

 variations of these species in regions or seasons associated with similar temperatures ; 

 and some curious effects produced by severe temperatures on V. Atalanta seemed 

 likely to throw light on the evolution of the complex markings of the Vanessce. 

 Mr. Poulton, Dr. F. A. Dixey, Mr. Elwes, Mr. Jenner Weir, Mr. Tutt, and Mr. 

 Frohawk took part in the discussion which ensued. 



Mr. Kenneth J. Morton communicated a paper, entitled,, "Notes on Hydro- 

 ptilidcs belonging to the European fauna, with descriptions of new species." Mr. 

 McLachlan made some remarks on the subject of this paper. 



Dr. T. A. Chapman read a paper, entitled, " On some neglected points in the 

 structure of the pupa of Heterocerous Lepidoptera, and their probable value in classi- 

 fication ; with some associated observations on larval prolegs." Mr. Poulton, Mr. 

 Tutt, Mr. Hampson, and Mr. Grahan took part in the discussion which ensued. 



Mr. J. Cosmo Melvill communicated a paper, entitled, " Description of a new 

 species of Butterfly of the genus Calinaga from Siam." 



Mr. W. L. Distant communicated a paper, entitled, " Descriptions of new 

 genera and species of Neotropical Bhynchota." — H. Gross and W. W. Fowlek, 

 Hon. Secretaries. 



