82 



AKTHROPODA 



FlG. 80. Eggs and moth of the tent caterpillar. Twice natural size. 



thousand dollars, in 1894 the same amount, and the follow^- 

 ing year one hundred and fifty thousand dollars. Large 

 appropriations have 

 been made later, but 

 the enemy still con- 

 tinues its ravages, 

 and should it be 

 carried to the other 

 states a national 

 calamity would re- 

 sult. 



Owlet Moths (Noc- 

 tuidae). These are 

 usually of a somber 

 gray or brown color 



flnrl VmVP fl wino- P-X"- FlG - 81 '~ pll otograph of fal1 webworm and its co- 

 coon. Nearly twice natural size. 



pansion of from one 



to three inches. The larvae of many of the species are 



known as cutworms, because in the spring and early 



