230 



NA T URE-STUD Y RE VIE W 



[13:6— Sept., 1917 



marked with yellow or orange, 

 spiny, and feed on sunflowers, 

 asters and other composite plants. 

 The Baltimore. — This is another 

 crescent spot, but is ver\^ strik- 

 ing in appearance. It is found 

 near swampy places. Its cater- 

 pillar is black and orange banded 

 and striped and spiny. The 

 caterpillars of one brood live 

 together like a happy family. 



Pearl Crescent, 



Silver* Crescent. 



Expanse one' and one-half inches. 



Color orange-yellow with black 



markings. 



weaving leaves around them- 

 selves for protection; a queer 

 thing about them is that 

 during late stmimer the whole 

 brood suddenly stops eating 

 voluntarily and^waits for win- 

 ter to pass, although sur- 

 rounded by plenty of food. The food is snake head. 



The Baltimore 



Expanse two inches. Color black with 

 outer marginal row of reddish-orange 

 spots and two parallel rows of very 

 pale yellow spots. 



THE ANGLE WINGS 



These butterflies are so called because the edges of their wings 

 look as if they were cut in 

 sharp notches and scallo]3ed 

 with a pair of scissors; they 

 are am.ong our most interest- 

 ing and beautiful butterflies. 



The American Tortoise Shell. 

 — This striking butterfly some- 

 times passes the winter as an 

 adult and sometimes as a 

 chrysalis. Its caterpillar is 

 black with greenish sides and 

 sprinkled with white raised 



The American Tortoise Shell 

 Expanse two inches. Wings blackish 

 crossed by a broad band of orange 

 brown which shades to yellow on 

 the inner side. 



