2l6 



ELEMENTARY ENTOMOLOGY 



FlG. 342. The promethea moth (Callosamia promethia], 



(Reduced) 



(Photograph from life by Weed) 



FIG. 343. Pendent 

 cocoons of prome- 

 thea moth. (Greatly 

 reduced) 



nearly related species (Callosamia promethid) hang pendent from 

 the twigs of wild-cherry, ash, willow, and other trees. Although 

 many attempts have 

 been made to manu- 

 facture the silk in 

 the cocoons of these 

 native species, they 

 have so far been un- 

 successful. 



Our common tent 

 caterpillar, which is 

 fully described on 

 page 57, is a repre- 

 sentative of a family 

 of this group (Lasi- 

 ocampidac\ though 

 much smaller in size 

 than the preceding, 

 having a wing ex- 

 panse of One and FIG. 344. Luna moth (Actia Inn a}. (Reduced) 

 One half inches. (Photograph from life by Weed) 



