Silk-Worms and Giant Night-Butterflies 7; 



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the fore and Iiind wings together which you find 

 among some of the other moths. 



There are several kinds of caterpillars in 

 America which spin excellent silk and it has heen 

 claimed that the silk of the American silk-worms 

 is every bit as good as that of the celebrated Tus- 

 sah silk-worm of India and China, the Pernyi silk- 

 worm from Manchuria or the Yama-Mai of 

 Japan. The Luna moth, or caterpillar, belongs in 

 the family of American silk-worms, but the Luna 

 caterpillar is stingy with its silk and makes a thin 

 cocoon. 



All the caterpillars of the American silk-worm 

 family are as naked as a September Morn, but not 

 nearly as pretty, because they have as many warts 

 as an old witch and these warts have short hairs or 

 branching prickles on them. Some of the cater- 

 pillars make their cocoons on the ground and some 

 of them fasten their cocoons to the branches of 

 the trees, as does the 



GIANT CECROPIA MILLER 



There is another giant miller of the silk-worm 

 family and one that is more generally known than 

 the beautiful Luna miller, and this is the Cecropia, 



