( lxiii ) 



upon the amount of moisture and light to which the species 

 were subjected, probably in the pupal stage. 



Professor E. B. Poulton understood that the term " season " 

 as used in this connection, referred to the climatic conditions 

 which prevailed at the time. He considered that " wet 

 form " and " dry form " were more accurate expressions than 

 ' wet season form " and " dry season form." 



Mr. Selwyn Image exhibited a £ specimen of Tortrix 

 pronuhana, Hb., taken by Mr. Harold Cooper in his drawing- 

 room at Eastbourne, either at the end of September or the 

 beginning of October last, and sent to him on October 12th. 

 The insect, which is new to his British list, is placed by 

 Staudinger in his Catalogue next to T. viridana, L., and is 

 reported by him from South Europe, North- West Africa, and 

 Asia Minor. It is about the size of T. bergmanniana, L., 

 the upper wings of a soft purplish-brown, the lower a rich 

 orange terminally suffused with fuscous. 



Commander Walker said that the capture this year of 

 another specimen of pronuhana had been reported in the 

 Worthing district, and suggested that there might have been 

 an immigration. 



Mr. Edward Harris exhibited a long series of Jlemeropkila 

 abruptaria bred for the purpose of determining the effects of 

 heredity through successive generations. He said : — • 



" On November 2nd last year I showed a small brood of 

 abruptaria including a few melanic forms (Proc. 1904, p. lxxii). 

 The two pupa? that went over emerged April 4th and 5th this 

 year, one a light male and the other a light female. Both are 

 remarkably larger than those that emerged in 1904 from the 

 same brood. From the brood of larvae, also mentioned, 57 

 pupated and the following imagines emerged between March 

 24th and May 6th, 1905 :— 



"12 dark males, 16 dark females, 5 light males, and 6 light 

 females. 



"The remaining 18 did not break through their silken cocoons, 

 but upon examination I think they would have been 5 dark 

 males, 6 dark females, 3 light males, and 4 light females. 



" From the above moths I paired dark male with dark female, 

 light male with light female, dark male with light female, and 



