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igog, in the area comprising that part of Surrey lying north 

 of Walton-on-the-Hill, Headley, and Kingswood, and com- 

 municated the following note : 



"In habits they seemed to dislike the heavy morning dew, 

 and were mostly found resting up the dry stalks of plants. 

 When found in or on stalks above long grass, with abun- 

 dance of cover, the shell was generally larger than normal, 

 but sparse herbage went, as a rule, with small shell. There 

 was a noticeable character of shell in any one spot with 

 a small number of general varieties — /. c. one bank gave a 

 shell of a deepish yellow tone, another gave a greater number 

 that were striped, and on another the shells were of the 

 common type. The most remarkable came from a field of 

 narrow-leaved plantain. When first picked up the general 

 colour was yellow, but soon after handling they all appeared 

 of a drabbish hue. When the mollusc was removed the 

 original yellow was the characteristic colour. 



" Did the nervous system, acting through the unusual 

 treatment, so disperse the body-contents as to withdraw the 

 yellow and lighter contents from immediate contact with 

 the almost transparent and thin shell ? 



"The creature is timorous, and its nervous system would 

 be stimulated, and as ' yellow ' was abundantly in evidence 

 in the extracted body, could it not have been at first dispersed 

 throughout the creature and adjacent to the shell? If the 

 yellow be withdrawn into the deeper parts of the body, then 

 the transmitted light would be less bright. This is the 

 explanation of the phenomenon which suggests itself to me." 



Mr. W. J. Lucas exhibited a box of the commoner species 

 of European Ascalaphi, including the species A. coccajus, 

 with var. near Icncocilius, A . longicornis, A . corsicus, and 

 .-1. bceticus; another Neuropteron, Osmylns chrysops, with 

 a larva of the same ; and a curious female variety of 

 Pieris napi from Merrow Downs, taken in July, igog, in 

 which the upper submarginal blotch was narrowly extended 

 so as almost to touch the apical blotch. The two blotches 

 were united by a narrow bar, and the lower blotch was 

 united to the inner marginal marking, while the apical black 

 blotch extended somewhat downwards to the next two 

 nervures, each of which had a triangular black marking at its 

 hind marginal termination. 



Mr. Sich exhibited a series of Dcpressaria pntvidclla, the 

 recently introduced British species, with examples of the 

 allied species with which it might, perhaps, be confused. 



Mr. Tarbat exhibited a Noctua taken at the electric light 



