THE BUTTERFLIES AND MOTHS 



65 



tobacco worm and tomato worm are the larvae of a well- 

 known species, Protopar'ce sex'ta (Fig. 42), found on tomato, 



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potato, and tobacco plants. The pupa? 

 are remarkable for the long coiled pro- 

 boscis case. 



Tussock Moths. The tussock moths, 

 though few in number of species and 

 inconspicuous in the adult stage, are 

 comparatively well known from their 

 conspicuous larvae, which are clothed 

 with white or brightly colored tufts of 

 hair. The white-marked tussock moth 

 (Hemerocam'pa leucostig'ma, Fig. 43) is 

 the commonest species in the eastern 

 United States. Long brushes of black 

 hairs are borne anteriorly and posteri- 

 orly, and four .dense clusters of white 

 hairs stand up prominently from just 

 behind the head. The females are wing- 

 less and look more like white grubs than 

 moths. When they emerge from the co- 

 coons the eggs are laid close by, often 



on the cocoons. Fig. 43 shows the female in the act of 



laying eggs in such a situation. 



Fig. 43. Metamor- 

 phosis of tussock 

 moth. (Natural size) 



