204 



STUDIES IN THE GENUS THANAOS 



"This species is spoken of by Harris as a local variety of A'^. juvenalis, 

 but it is a distinct species; the distinctions mentioned by Harris in the spots 

 on the wings are not persistent, but it differs from N . juvenalis in its smaller 

 size, and in the fact that the male and female are exactly alike in the mark- 

 ings, while in N. juvenalis, the female differs from the male in having very 

 much larger spots and in the marked ash-grey tints of the apical half of both 

 primaries and secondaries above, differing so much as readily to be taken for 

 a distinct species. A'^. persius has exactly the general appearance in colora- 

 tion of the male of A'^. juvenalis the distinction of the male and female is 

 marked in Abbott's figures. The description of larva and chrysalis in 

 Harris' Insects apply to this insect and not to N. juvenalis, as specimens in 

 his cabinet show. Meadows, somewhat common; early August." (Origi- 

 nal description.) 



Thanaos persius Scudder. 



Type Locality. — New England. Expanse. Male 14 to 17 mm., female 

 16 mm. 



This species has a very wide distribution being found from Alaska 

 to the Gulf of Mexico and from the Atlantic to the Pacific oceans. 

 • Records. — Laggan, Alberta; Calgary, Alberta; Red Deer River, Alberta, 

 VI, 20; Eagle, Alaska, VI, 3; Framingham, Mass., V, 11; Johnston, Rhode 

 Island, VI, 17; Fite's Eddy, Penna., VIII, 20; Westville, N. J., IV, 9; Omaha, 

 Nebraska, (Leussler); Round Mountain, Blanco County, Texas; St. Igna- 

 tius, Montana, VI, 28; Southwest Colorado, VII, 14; Fort Klamath, Oregon; 

 Santa Cruz County, California, VII, 30; San Bernardino Mountains, Cali- 

 fornia, VII, (Wright) ; Riverside, California. 



var. lucilius Scudder and Burgess, Proc. Boston Soc. Nat. Hist., xiii, 287, 



1870, figs. 2L, 2R, 2U. 

 Lintner, Twenty-third Report New York State Cabinet of Nat. Hist., 162, 



1872 (Entomological Contributions, 32, pi. 7, f. 1, 2, 1872). 

 Scudder, Butterflies New Eng. and Canada, ii, 1458, pi. 9, f. 4, 1889. 

 Holland, Butterfly Book, pi. 48," fig. 10. (I think this represents T. mar- 



lialis.) 



