31 



Mr. Lewcock exhibited Silpha atrata, L., vars. from 

 English, Scotch, and Irish localities, var. subrotundaria, 

 coming from the Orkneys, and from Ireland. Also Mesites 

 tardily Curt., male and female, to show that in the male the 

 antennse are inserted nearer the apex of rostrum than in the 

 female, and that the male has a much stouter rostrum. It 

 was also noted that this species was now taken in numbers 

 under the bark of old holly trees. 



Mr. Frohawk made a remark concerning the attempt to 

 exterminate Melitcsa cinxia, L., from its only remaining 

 English locality, a dealer having advertised hundreds of larvae 

 for sale. With regard to this species it was noted that 

 hybernacula with young larvae were always found nearer the 

 shore than were the older larvae, and also that the hyberna- 

 culum was divided into several compartments, and frequently 

 found attached to grass stems at a distance from plantain, the 

 larval food. 



APRIL 2'ith, 1892. 

 C. G. Barrett, F.E.S., President, in the Chair. 



Messrs. E. H. Taylor and J. V. Blachford, M.B., M.R.C.S., 

 were elected members. 



Mr. Frohawk exhibited a black specimen of Apatura iris, 

 L. (var. iole, Schiff.), and some examples of Pieris napi, L., 

 taken near Cambridge. 



Mr. Cant exhibited a case showing preparations of the 

 genital organs ot various species of Hesperiidae. 



Mr. C. G. Barrett exhibited, on behalf of Major Still, a 

 long series of Demas coryli, L , reared on beech, which, he 

 stated, was the usual food-plant of the species in Devonshire. 



Mr. Barker stated that he very rarely obtained the larvae 

 of this species from hazel, but it was very common among 

 beech. 



Mr. Barrett also exhibited varieties of Rhopalocera on 

 behalf of Mr. Sydney Webb, of Dover, among which was a 

 series of Melanargia galatea, L., ranging in colour from very 

 dark to very pale ; and on behalf of Mr. Sabine, the following 

 varieties of Argynnis : A. latona, L., with the black spots much 

 enlarged and the wings suffused with a peculiar bronze 

 colour; A. euphrosyne, L,, in which the black spots were 

 united, and formed deep black bands ; A. selene, L., a 

 suffused specimen, with the black spots forming ill-defined 

 bands. 



Mr. Edward Step delivered a lecture on "Lichens;" in 



