THE CATERPILLAR. 31 



profusely covered with microscopic hairs ; but the 

 newly hatched cater- 

 pillars are provided 

 with long hairs 

 sweeping backward 

 behind their bodies, 

 most of them arrang- 

 ed in longitudinal se- 

 ries [Fig. 42] ; the FIG. 42. Young caterpillar of Heodee 

 -i . , -, , Hypophlaeas, x 28. 



hairs themselves, too, 



instead of being simple, as in the 

 adult, are covered with microscopic 

 spicules. In our white and yellow 

 FIG. 43.- spine butterflies (Fugacia and Yoracia), 



of young caterpil- 



phiiodice El x } 3oo d pests of the garden and the glory 

 of the fields, the differences between 

 youth and old age are much the same 

 as in the meadow butterflies first 

 mentioned [Figs. 43, 44]. In a gen- 

 eral way, the same may be said of 

 the skippers, but the appendages of 



., , .,, FIG. 44. Spine 



the new-born caterpillar are always or young carerpii- 



17 lar of Pieris ole- 



shaped like little clubbed mush^ racea, xso. 



rooms [Fig. 45], and under the mi- 

 croscope bear an odd resemblance to 



ciilbbed'^? e tram y - a row of cabbages in a vegetable 



pet-shaped spine -, rrn .,, 



of young caterpil- garden. The caterpillars of our 



lar of Ocytes Me- 



tea, x i5o. swallow-tails, at least of those com- 



mon in New England, are always nearly naked 



