100 



of Scientific Societies, to illustrate the geological formations 

 of the Gault and Wealden series as they appear in the south- 

 eastern counties of England, were exhibited in the lantern. 

 Mr. Lucas, B.A., read the descriptive lecture circulated with 

 the slides, and a short discussion ensued. 



JUNE gth, 1898. 



Mr. J. W. TuTT, F.E.S., President, in the Chair. 



Mr. Lucas exhibited coloured drawings of the rare Odonata 

 Lihelhila fnlva, showing details. 



Mr. Bishop exhibited a bred specimen of Brephos parthenias, 

 having a gap in the wing, due to an injury to the pupa. The 

 gap was noted to be ciliated. He also exhibited specimens 

 of Thecla riihi, and remarked on the variability of the andro- 

 conial marks in this species, while in all the rest of the 

 species of the genus they were notably constant ; specimens 

 of Rmnia luteolata showing considerable variation m the red 

 spotting; and larvae of Tceniocampa niunda, T. incerta, and T. 

 stahilis. 



Mr. Tutt, referring to eggs of Hepialns lupulinus, which he 

 exhibited, said that under a lens they looked liked little black 

 sloes, and were most distinctive. 



Mr. West, of Greenwich, exhibited series of Trapeconotus 

 agrestis and Tropistethns holoseHceus obtained by shaking 

 moss in Headley Lane. 



Mr. Shortridge Clarke mentioned a remarkable occurrence. 

 He stated that thousands of larvee and imagines of Caradrina 

 quadripunctata {cubic idaris) had been observed in a large flour 

 store in a warehouse where a quantit}^ of new-mown hay was 

 stored annually. From a small mass of cocoons he had bred 

 more than 500 imagines, none of which, however, showed 

 the slightest variation from typical lines. The cocoon mass 

 looked like a dirty sponge, in which each pupa had a cell of 

 its own as it were. To obtain light in the store it was 

 necessary to clean the window twice a day. He also re- 

 marked upon the difficulty of rearing the pupa of DianthcEcia 

 ccEsia, which, according to his experience, almost invariably 

 died in the last stage. 



