186 



Parnassiiis clodiiis. — A pair of this small representative of a genus 

 so dominant in the northern mountainous regions of the whole of 

 the Eastern Hemisphere. 



Nathalis iole. — A beautiful little sexuallj' dimorphic Pierid, prob- 

 ably the smallest species of the family. The males are of a pale 

 sulphur yellow ground colour, the females are orange yellow, par- 

 ticularly on the hind wings ; both sexes have black apices to the 

 forewings with dark inner margins, but the female has considerably 

 more dusky markings on the hindwings. 



Neophasia tiienopia. — A Pierid recalling the African Belenois 

 viesentina, but much more delicate in structure, texture and mark- 

 ings. 



A Paper entitled " The Geological History of Insects," was read 

 by Mr. G. W. Young, F.G.S., with numerous lantern illustrations. 



British Association. — Report of the Society's Delegates. 



Mr. R. Adkin, the Society's delegate to the Conference of 

 Delegates of the Corresponding Societies of the British Association, 

 read the following Report of the meeting at Hull, in September last. 



" Although I had made arrangements for representing the Society 

 at the Conference, I was, almost at the last moment, prevented from 

 being present, very much to my regret. I was, however, fortunate 

 in being able to enlist the sympathies of Dr. Tierney, through whose 

 kindness I am able to submit a short report of what took place at 

 the conference, as follows : — 



" At the meeting on Thursday, September 7th, the following 

 matters referred to the Conference by the Council of the British 

 Association were discussed. 



(a) The consideration of what steps should be taken, in accord- 

 ance with the recommendation of the Committee for Corresponding 

 Societies in 1883, to induce local societies to group tbemt^elves 

 round local {i.e., District) sub-centres, (i) for the interchange of 

 information, (ii) for the more economical publication of the results 

 of research. The constitution and procedure of the Yorkshire 

 Naturalists' Union, and the Gloucester Association of Science and 

 Arts Societies, were described, to illustrate the working of such 

 regional groups of societies. 



It may be here pointed out that the South-Eastern Union of 

 Scientific Societies, to which our Society is affiliated, appears to 

 fulfill these conditions for the South-East of Enj^'land. 



