The butterfly appears to be a hybrid between two known tiger swallowtail species — P. glaucus and P. canadensis — but because ...
62.5 x 47 cm. (24.6 x 18.5 in.) ...
Carpenter, G D H, and Ford, E B. 1933. Mimicry. Methuen, London.
1959b. The genetics of Papilio dardanus Brown. J Genet, (in press). Fisher, R A. 1928. The possible modification of the response of the wild type to recurrent mutations. Amer Nat, 62, 115–126.