“ 
AMERICAN NATURALIST. 
ece OTD > 
THE NATURAL HISTORY OF A POLYMORPHIC 
BUTTERFLY.* 
BY SAMUEL H. SCUDDER. 
Tunis butterfly (Iphiclides Ajax) occurs east of the great plains, 
in the Carolinian and the southern half of the Alleghanian fauna; 
it extends north almost to the annual isotherm of 50°, even passing ` 
that line in the region of the great lakes, so as to include southern 
Michigan and the whole of Ohio, but, apparently, not following 
the upward curve of the isotherm beyond the Mississippi. In the 
. South it reaches the gulf coast, but how far it extends down the ` 
Florida peninsula is undetermined; its western extension is 
unknown ; it has been reported neither from Texas nor Arkansas, 
although it is common in Missouri (Riley). Prof. Parker states 
that it occurs on the Mississippi at least as far north as 
Island, Ill., and that he has taken a few specimens at Keokuk and 
Davenport, Iowa, although none at Grinnell. It occurs in southern 
Michigan (Mus. Mich. Univ., Andrews) and in many localities in 
Ohio, such as Cleveland —“ not uncommon” (Kirtland) ; “ common 
where papaw bushes are” (Kirkpatrick); Columbus, “still more 
abundant” than at Cleveland (Kirtland) ; Rockport, Poland and 
Hudson (Kirtland) and Eastern Ohio (Foster) ; a single specimen 
has been reported from Komoka, Ontario, Canada (Saunders). In 
be Nae came cre rs A 
ye 
* Pi PN } h pt po Papilio Ajax in M 8 forth- 
coming work upon the Butterflies of New England and the adjoining regions; this will ` 
acconnt for Pen form in EA ee C E ted DS. NAT. j 
This article ij 2 
ount 
ian a a ea sd 7 
q,, Entered, according to Act of Congress, in the year 1874, by the PEABODY ACADEMY OF 
SCIENCE, in th Office or t )rarian of Congress, at Washington. 
AMER. NATURALIST, VOL. VIII. 17 (257) 
