PL. CXII! 



are twice as long as in the first. There are other forms. Ex- 

 panse 2.50-3.25 inches. 



The caterpillar feeds upon the leaves of the Papaw (Asimina 

 trilobd) and wherever this plant grows the insect may be found. 

 It ranges from New England and Ontario to Florida and far 

 westward through the valley of the Mississippi. 



(2) Papilio turnus Linnseus, Plate CXIV, rf; Plate CXV, 

 P. glaucus Linnseus, dark dimorphic 9 , under side (The Tiger 

 Swallow-tail)* 



In the Middle States and southward a large proportion of 

 the females are black, belonging to the form glaucus; in Ontario 

 and northward and westward to Alaska the females are yellow, 

 like the males. The Alaskan form is very small, dwarfed by 

 the cold and poor feeding. The figure on Plate CXIV is that 

 of a male from Alaska of the natural size; a specimen taken in 

 Pennsylvania would be nearly twice as large. The metropolis 

 of the species is the Appalachian uplift; but it ranges north- 

 westward to Alaska and south to the Gulf States. Expanse 

 3.00-5.00 inches. 



The caterpillars are partial to the foliage of wild cherry trees, 

 but are found on a great variety of plants. 

 188 



