6o 



INSECTS INJURIOUS TO VEGETABLES 



MISCELLANEOUS CATERPILLARS 



Caterpillars of omnivorous habits other than cutworms and 

 webworms may be divided into two groups — naked and hairy 

 caterpillars. • Both forms are in the main diurnal, at least during 

 their early stages, but some naked species as they approach 

 maturity crawl into shelter where they are more or less pro- 

 tected from the sun's ravs as well as from natural enemies. The 



Fig. 32.— Yellow bear, a, Female moth; b, full-grown larva; c, light form of larva, not 

 quite mature; d, cocoon; e, pupa- All slightly enlarged. (Author's illustration, 

 U. S. Dept. Agr.) 



naked caterpillars are more abundant and injurious, and include 

 such species as the zebra and clover caterpillars and corn-ear 

 worm. Among the hairy caterpillars are such well-known forms 

 as the yellow bear (Diacrisia virginica, figure 32), salt-marsh 

 and hedgehog caterpillars and smeared dagger. Most hairy 

 caterpillars are rather more abundant on useless plants than on 

 crops, a fortunate thing for the grower. 



