GENERAL ACCOUNT OF BUTTERFLIES 



scale, beautifully ribbed, with a series of project- 

 ing teeth at one end, and a single pedicel at the 

 other (Fig. 10). 



If a piece of a wing of a butterfly be ex- 

 amined with a microscope, it will be seen that 

 these scales are arranged in regular, overlapping 

 rows ; the arrangement being as regular as that 

 of the scales on a fish or of the shingles on a 



Fig. io. — A series of scales taken from the body and wings of a single 

 moth. (From Kellogg.) 



roof (Fig. n). In the upper part of the figure 

 the membrane of the wing is represented with 

 the scales removed. 



The scales of butterflies are modified hairs. 

 That is, they are hairs which, instead of growing 

 long and slender as hairs usually do, remain 



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