LEPIDOPTERA— PAPILIONIDAE— PAriLIO DAUNUS. 741 



This species belongs to the group of Papilios, of which Machaon is the 



type, and is one of a number of forms closely related to Asterias, and 



probably derived from that species. All of these are characterized by the 



spotted abdomen ; that of Machaon is banded. The larvae of the whole 



group feed on umbelliferous plants. P. Bairdii is still excessively rare in 



collections. A single specimen, the original type, was brought from Arizona 



in 1865, and the expedition took specimens in New Mexico in 1871, and in 



Arizona in 1873. 



t PAPILIO PILUMNUS, Boisd. 



Papilio Pilumnus, Steeckee, Illustrations of Lepidoptera, 1873. 



This species was taken by the expedition in 1871. It occurs in New 

 Mexico and southward. 



PAPILIO TURNUS, Linn. 



This common eastern species has occasionally been found in the Rocky 

 Mountains, which seem to be the limit of its westward range. 



PAPILIO RUTULUS, Boisd. 

 Papilio Eutulus, Edw., Butterflies jST. A., ii. — Reakiet, Proc. Ent. Soc. Phila., 1866. 



This species is very closely allied to P. Turnus. The only constant dis- 

 tinction seems to be that in Ridulus the submarginal ray on the under side 

 of secondaries is continuous ; in Turnus it is broken up into distinct spots. 

 No melanized females of this species are known. All the specimens have 

 rather elongated hind wings, as is the case with New England specimens ol 

 Turnus. The female is not so heavily marked with blue on the secondaries 

 as in the latter species, but occasional specimens from the Eastern States 

 approach very closely in marking to the normal female of Rutulus. 



Eutulus was brought by the expedition from Southern Utah ; is taken 

 in Colorado in the month of June, there frequenting open woods and hill- 

 sides where flowers are abundant. It is common in California. In Colorado, 

 there is no second brood of Papilio. 



PAPILIO DAUNUS, Bois. 



Papilio Daunus, Edw., Butterflies N. A., ii. — Ridings, Proc. Ent. Soc. Phila., 1862.— 

 Steeckee, " Lepidoptera." 



This species may be at once distinguished from others nearly allied by 



