45 



Mr. F. B. Carr exhibited the living larva) of Bithya (jnerciis, 

 Xanthorlw'e montanata, (.'idaria siiff'mnata, Xunthorltne sociata and 

 Tephrosia consonaria. 



JUNE 25th, 1921. 



Field Meeting — Chalfont Koad. 



Conductor, F. B. Carr. 



This was another whole day meeting. The party went by train 

 to Chalfont Road Station and thence to the extensive woodland on 

 the slope of the Chess Valley. The special quest of the day was to 

 obtain Ast/iena bloineri and Abraxas si/lvata {idmata). The former 

 was obtained by the more active while the latter allowed itself to be 

 acquired more easily. Messrs. Ashby and Tonge obtained speci- 

 mens of Stauropus faiji. Later in the day the party found their 

 way to the wooded slopes and fields south-west of the railway and 

 gradually reached the residence of Mr. T. W. Hall, at Chorley 

 "Wood, who had kindly invited them to take tea in his pleasant 

 grounds. In this beautiful retreat a pleasant hour or two was 

 spent before return was made to town. 



JULY Uth, 1921. 



Mr. G. S. Baker, of 7, Fawcett St., W. Erompton, was elected 

 a member. 



There was a short discussion on Xanthorlio'e rivata and X. 

 alter nata {sociata). 



Mr. Hy. J. Turner introduced the discussion with the following 

 notes on the nomenclature, differentiation and variation. 



I. Nomenclature and Variation : — 



1. Cidaria rivata, Hb., 409 {sylvaticata. Haw., 332). 



2. Cidaria alternata, Muller. (alcheinillata, Schiff., Hb. 



370 ; sociata, Brk. v. 482 ; siibtristata. Haw., 382 ; 

 contriatata, Don., ). 



ab. dej/enerata. Haw., 333 ab. {kiirzi, Hirschke, ). 



[Narrow median band, broken.] 

 ab. cinijulata, Tengstr. Ac. Fenn. I., 32. 

 [Dark hindwing: abdomen dark.] 



