THE CANADIAN ENTOMOLOGIST. 27 



this rule is not absolute. In iSSi, from eggs laid by the form Tela- 

 nwnides, I had 26 chrysalids, the last of which formed 19th June. From 

 these, 4 butterflies only emerged the same season, and the rest of the 

 chrysalids are now passing the winter. If the rule above set forth held, 

 the proportions should have been reversed, or 22 butterflies should have 

 emerged and 4 chrysalids passed the winter. 



• 

 7. AjAx, Walshii and Telamonides. 



Mr. Raphael Meldola, in Ann. and Mag. Nat. Hist, xii, 1873, made some 

 remarks on my history of Ajax, But. N. A., v, i, to which Mr. Scudder 

 called attention in Proc. Bost. Soc. Nat. Hist., vol. xvi, 1874, and this last 

 paper closed with these words : " Mr. Edwards had not draw^n attention 

 to the fact that Walshii and Telamotiides belonged to the same brood ; the 

 former consists of earlier, the latter of later individuals from wintering 

 chrysalids ; the second brood of the species (tfie first from short-lived 

 chrysalids) is Marcellus, and made up of the mingled progeny of both 

 Walshii and Telamonides T 



In the " Butterflies," p. 170, Mr. Scudder again refers to this : " The 

 first two ( Walshii and Telavionides) do not appear to represent distinct 

 broods ; and this point, to which Mr. Edwai'ds strani:^ely failed to draw 

 attention in the first account of his observations, is one of the most extra- 

 ordinary features in the history of the insect ; for Telamotiides is not the 

 direct con-seasonal produce of Walshii, but both are made up of butter- 

 flies which have wintered as chrysalids, those which disclose their inmates 

 earliest producing Walshii, the others Telamonides ; while all butterflies 

 produced from eggs of the same season, and there are several successive 

 broods, belong to Marcelius." 



The experiments recited in But. N. A. ran through two seasons, 1870, 

 187 1. In the former they began with Telamonides, circumstances making 

 it impossible for me to begin with Walshii, the earlier form. During the 

 following winter nearly all the hibernating chrysalids were destroyed by a 

 fire which burned my house. But the experiments and observations 

 enabled me to say in the text, " that from Telamonides came Marcellus the 

 same season, and Telamotiides in the following spring ; that from Marcellus 

 came successive broods of Marcellus the same season and from the last 

 brood Telamonides in the spring." Also, " these observations failed to 

 determine the connection between Walshii and the other two forms," and 

 I therefore set myself at work to ascertain what that might be, by breeding 



