GRAPTA I. 



or of the former 86 per cent., of Fuhric'd 14 per cent. Of the eleven broods 

 six produced Umhrosa only, five both forms. 

 Third Bkood. 



1870, 1st August, found larvae. Result, about 13th September, 6 Umhrosa, If. 

 Fabi'lcli. 



1871, 29th July to 5th August, confined several $ $ Utiihros(.i. Result, iil)()u( 

 1st September, 63 Umhrosa, 34 Fahricil. 



1877, loth August, found larvae. Result, about 22d September, 2 Umhrosa. 

 9 Fabricii. 



1878, 16th August, eggs from ? Umhrosa hi confinement. Result, about lOtli 

 September, 1 5 Umhrosa, 20 Fahricn, 7 J 13 ? . 



1881, 2d and 3d August, found eggs and larvae. Result, about 1st September. 



46 Umhrosa, 17 J 28 ? , 6 Fahricil, 5 J 1 ? . 

 1887, lOth to 1-jth August, found larvae. Result, from 15th to 22d September, 



6 Umhrosa, 9 FalnicU. 



That is, Ujibkosa to 10 Falskicii. 



Total, 124 UiMBROsA to 94 Fabricii ; 

 or Umhrosa 57 per cent., Fabricii 33 per cent. Every lot produced both 

 forms. 

 Fourth Brood. 



1872, inth October, found larva^ past third moult. Result, 8th to 18th Decem- 

 ber, 4 Fahricil. 

 1879, 1st September, eggs from $ Umhrosa in confinement. Result, to 81 li 



October, 25 Fahricil, 10 J 15 ? . 

 1879, on 19th and 26th September, 2 J Fabricii. 

 1887, 8th October, from three found larvfB, 3 Fahricil, 2 J 1 ? . 

 1878, 8th September, found larvaj. "Result, about 3d October, 10 Fabricii, 

 6$ 4$. 



That is. 4 Fabricii. 



25 



2 



3 



10 



Total, 44 Fabricii, no Umbrosa. 



