364 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



occasionally docs very similar injury to the imported cabbage 

 worm. The caterpillar is about three-fifths of an inch long, 

 of a bluish-gray color above, with conspicuous cross stripes of 

 black, as shown in the illustration. The parent moth is a pale 

 ochre yellow color; the fore-wings expand about an inch, and are 

 marked with brownish-black, as shown in the illustration, while 

 the hind-wings are nearly transparent except at the outer edge. 

 Life History. The caterpillars are to be found on cabbage in 

 late May and early June at Washington, D. C. When full grown 

 they go just below the surface of the earth and there construct 



FIG. 264. -The cross-striped cabbage worm (Everyestis rimosalis) : a, moth ; 

 b, egg-mass; c, sculpture of egg; d, larva; e, cocoon a, d, e, twice natuial 

 size; 6, much enlarged; c, more enlarged. (After Chittenden, U. S. 

 Dept. Agr.) 



silken cocoons in which the pupal stage is passed and from which 

 the moths emerge in about ten days. The eggs are laid in masses 

 of a bright light-yellow color, from twenty to forty being laid in a 

 mass on the under surface of the leaf, and hatch in about a week. 

 The caterpillars become full grown in from two to three weeks, 

 so that the full life cycle may be passed in thirty days in mid- 

 summer. It seems probable that at Washington, D. C., there 

 are three generations each year, and that the winter is passed 

 in the pupal stage. 



Control. The same means of control advocated for the 

 imported cabbage worm will prove effective for this species. 



