i83 



naming the third one Walshii, I sent examples of it to Felder, and 

 received reply that it was distinct from Telamonides, and a new species 

 by itself. Now Ajax, in one or other of its forms, had been figured for 

 an hundred years, and yet here were two experienced lepidopterists — 

 Boisduval and Felder — who pronounced each of the three seasonal 

 forms to be a distinct species. Bear in mind, all these things were 

 done before the connection of any such forms in any species was estab- 

 lished by breeding from the ^%z- That was my work, and that led the 

 way to numbers of cases of dimorphism or polymorphism being dis- 

 covered, in each of which two or more forms hitherto described 

 as distinct species were merged into one. It takes the two or the three 

 forms to constitute the species, and each must have its own name. 

 Telamonidcs is not Ajax, nor is Marcellus Ajax but these and Walshii 

 together make Ajax. I say, and have said before, that putting down 

 everything as a variety of something else, when we know nothing of 

 the connection, or even whether there be one, is a lazy way of work- 

 ing. It is not my way, at all events. I spot the new form, make it 

 conspicuous, put it where it cannot be overlooked, and leave it to time 

 and fuller materials to determine its position, if there is room for any 

 doubt in the matter. Working in that way, whether I have done good 

 work or not, I am very willing to leave to the lepidopterists who come 

 after me to determine. That it is a very different style of work from 

 that exhibited in the papers I am commenting on, I freely acknowl- 

 edge. 



I by no means wish to detract from the credit due to Mr. Boll. In 

 the text on Eurythetiie, I fully acknowledged all that was due to him, 

 and I now assert that Mr. Boll never did prove the connection between 

 these three forms, and so establish them as members of one species. 

 He guessed at it, and happened to guess right, but he never proved it. 

 It was Messrs. E. W. Dodge of Glencoe, Nebr., and Mr. T. E. Bean, 

 then of Galena, Ills., who, working with me, did that thing. I had dis- 

 covered in 1871 the method of inducing female butterflies to lay eggs 

 freely, and the following years set myself at the task of unraveling the 

 history of several species where dimorphism was probable, and one of 

 these was Eurytheme. During the next years, I wrote several corre- 

 spondents in the West soliciting their aid, and two of them responded 

 zealously — to wit, Messrs. Dodge and Bean. These gentlemen followed 

 my directions, obtained eggs, bred the larvse, made careful notes of 

 their observations, and sent part of the larvae to me. In our hands the 

 larvre reached maturity, and their chrysalids gave the butterflies. This 

 was all set forth in the text of Eiirythcme referred to. Mr. Dodge sent 

 me eleven butterflies bred from eggs laid by $ Keewaydin, of which 

 seven were Eurytheme, four Keewaydin. Mr. Bean obtained eggs from 

 $ EurytJieme in Sept., from which came in the winter 1876-77 sixteen 

 Ariadne., or what I called var. A of that form, differing somewhat from 

 typical Ariadne, which is found in Texas, but not in Illinois. Mr. 

 Bean also bred Eurytheme and Keeivaydin from Keewaydin eggs laid 

 in August. This was all that could be done in Illinois. The missing 

 link in the series was the breeding typical Ariadne from Eurytheme 

 and Keewaydin from Ariadne. There I had to rely on what I could 



