Genus Papilio 



daries, and the narrow bands of yellow spots on the wings 

 closely resembling those found in the same location on the wings 

 of P. asten'as, $. Expanse, 2.50-2.75 inches. 



Early Stages. — These still await description. 



fndra occurs on the mountains of Colorado, Nevada, and 

 California. 



(13) Papilio brevicauda, Saunders, Plate XL, Fig. 5, ? (The 

 Newfoundland Swallowtail). 



Butterfly. — There are two varieties of this species — one with 

 bright-yellow spots, one with the spots more or less deeply 

 marked with orange-yellow on the upper sides of the wing. 

 The latter variety is represented in the plate. The form with the 

 yellow spots is common on the island of Anticosti; the other 

 occurs quite abundantly in Newfoundland. Expanse, 2.75-3.00 

 inches. 



Early Stages. — Both the caterpillar and the chrysalis show a 

 very strong likeness to those of P. asten'as. The larva feeds on 

 umbelliferous plants. 



The range of the species is confined to the extreme northeast- 

 ern part of our faunal territory. 



(14) Papilio bairdi, Edwards, Plate XL, Fig. 2, $ (Baird's 

 Butterfly). 



Butterfly. — This form, the male of which is represented in the 

 plate, is the Western representative of P. asten'as, and is charac- 

 terized in general by the fact that the size is larger than that of 

 asten'as, and the postmedian band of yellow spots is broader. The 

 female is generally darker and larger than that sex in asten'as. 

 Expanse, 3.25-3.50 inches. 



Early Stages. — Not unlike those of P. aster/as. The cater- 

 pillar feeds upon UmbellifercB. 



The seat of this species or form is Arizona, whence it ranges 

 northward. 



(15) Papilio brucei, Edwards, Plate XL, Fig. 4, $ (Bruce's 

 Butterfly). 



Butterfly. — This species, which is thought to be the result of 

 a union between P. oregonia and P. bairdi, is found in Colorado. 

 Oregouia is, unfortunately, not represented in our plates. It flies 

 in Oregon and Washington, where P. bairdi is not found. In 

 Colorado and adjacent regions meeting with the form bairdi, which 

 ranges northward from Arizona, hybridization has occurred, and 



