99 



the imagines emerged between March 24th and May 6th, 

 1905. These comprised twelve dark males, sixteen dark 

 females, five light males, and six light females. 



" The remaining eighteen did not break through their 

 silken cocoons, but upon examination I think they would 

 have been five dark males, six dark females, three light 

 males, and four light females. 



" From the above moths I paired dark male with dark 

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

 female, and light male with dark female, with the following 

 result : The offspring of dark male and dark female were all 

 dark, thirty-four males and the same number of females ; 

 nine pupae have not changed. The pairing of light male 

 and light female produced specimens that were all light, 

 nine males and nine females; three pupae have not changed. 

 The dark male and light female have thrown eight dark 

 males and sixteen dark females, three light males and three 

 light females ; one pupa has not changed. The light male 

 and dark female have thrown nineteen dark males and fifteen 

 dark females, seven light males and eight light females ; 

 thirteen pupae have not changed. The last moth emerged 

 November 6th. 



" It may be worthy of note that one of the light males in the 

 first brood emerged with only three wings, the left fore-wing 

 being absent, also that the size of two specimens in the 

 first brood that emerged in 1905 was exceptionally large ; 

 the male was 40 mm. (i-^- in.) in expanse, while the female 

 measured 42 mm. (if-^ in.)." 



Dr. Chapman exhibited specimens of Arctia villica from 

 Sicily of the form var. konewkai, in which the spots of the 

 fore-wings run together to form more or less well-developed 

 fascia. He also showed living larvae of the same species, 

 and pointed out that they had black heads, whereas in the 

 type form the larvae had red heads. 



Mr. G. B. Browne exhibited Ellopia fasciaria, three bred 

 specimens showing one dark form. 



Cabera pusaria, two bred specimens of the var. rotundavia, 

 with two of the ordinary f®rm. 



Lithostege griseata, a sample of forms taken in June this 

 year. 



Angerona prunaria, a series bred from ova from a female 

 taken at Hailsham in 1904. 



A crony eta ligustri, three typical forms, with a variety taken 

 at Lee in 1901. 



Melanthia albicillata, a series bred from larvae taken at 

 Paul's Cray in the autumn of 1904. 



