FIELD BOOK OF INSECTS. 



white dot at each end. The larvse eat their cast skins. 

 The cocoon is spun on a leaf which has first been fastened 

 to the branch with silk, the pupa hibernating. Hanging 

 cocoons like this are hard for birds to peck. The adults 

 may be recognized by the white tufts on their abdomen. 

 Distributed locally (especially near cities) along the 

 Atlantic Coast. 



Rothschildia, with two species, orizaba and jorulla, in 

 Arizona, may be recognized by the triangular shape of 

 the translucent spots of the fore and hind wings. 



Samia 



The Saturnids are indeed fortunate 



moths: they have largely escaped success- 

 cecropia 



ful "English" christenings. Although this 



species (Plate XLI) was named cecropia by Linnaeus long 

 ago and has been a common and popular moth in this coun- 

 try ever since moths were at all popular, Cecropia is still 

 its common name. I hope my children's children will call 

 it Cecropia even though it has been recently nicknamed 

 something else by a lady who writes very good fiction but 

 who has done immeasurable harm to unalloyed love of 

 nature by encouraging the commercial viewpoint. People 

 forget that the Limberlost stories are fiction, and my 

 mail has been filled with letters from people, ranging all the 

 way from an eight-year-old boy, who wanted to sell a bat- 

 tered Luna so that he could get a pony, to invalids, who 

 wished to find a market for the moths which came to their 

 bedside lamps so that they might buy medicine. Permit 

 me to say that he who goes to Nature with money in his 

 eyes will not only be blind to her truths, her glories, and 

 the real benefits which she offers to those who love her, 

 but he will be disappointed as to his financial returns. 

 The "market" value of even our rare insects is so small 

 that, unless you have the requisite knowledge and can 

 give your entire time to collecting, classifying the spoils, 

 and finding the particular markets for the particular sorts, 

 you will not usually be paid for shoe-leather. But to 

 return to more pleasant things: Cecropia's head, body, 

 and bases of the fore wings are a rich red except for the 

 white bands ; the general wing-color is dusky reddish brown ; 



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