COLIAS I. 



COLIAS EURYDICE, 1-4. 



Colias Eurydice (Eu-ryd'-i-ce), Boisduval, Ami. Soc. Ent. France, 1852. Edwards, But. N. A., Vol. I., pi. 16, 

 p. 53. Form. Amorph^, H. Edwards, Proc. Cal. Acad. Nat. Sci., 1876. 



What I supposed was the typical form of Eurydice was figured in Volume I. 

 Boisduval says : " The yellow (of Ccesonla) is replaced by a vivid orange, and the 

 fore wings have a violet reflection." It is iinpos.sible to represent in colors 

 the peculiar reflection. It is also variable, some examples having scarcely any 

 violet, others an excess, and ray figure was made from one of the last. Mr. 

 Henry Edwards called attention, in the paper above referred to, to the difference 

 between the spring and autumn generations of this species, and regarded the 

 former as the type. " The butterflies of spring make their appearance in April 

 and May ; the secondaries of the male are wholly bright orange, without any 

 spots or marks on the margin, except some brown dots to note the termination 

 of the nervules, while the female is immaculate. The autumn brood, however, 

 appearing in July and August, have the secondaries of the male with a black 

 marginal border, and the females have the margins distinctly marked with brown- 

 ish patches, and rarely with a black sub-median band, composed of clouded 

 patches, crossing the wing." (Fig. 4.) To the autumnal form Mr. Edwards 

 gave the name Amorph^. In same paper, mention is made of an example 

 of Eurydice from Mendocino County, in which the "dog's head" is suffused 

 with the richest purple. 



From Mr. W. G. Wright, at San Bernardino, I have received many examples 

 of the butterfly, and they are characterized by small size, and absence of any de- 

 cided violet reflection. Often there is no reflection at all, and the color of the 

 dog's head varies from a pale to a deep or Indian yellow. From the same lot of 

 eggs I have bred the larvte to imago, and obtained these varieties. It is this 

 small form, with yellow primaries, that I call var. Bernardino. The females have 

 a large, deep brown or brown-black, discal spot on primaries, and often there are 



