The Bulletin. 



25 



attention is devoted to early spring cabbage the losses from cabbage 

 worms are not so severe as in the west, although by no means insigni- 

 ficant. 



Let us briefly consider each of these kinds of cabbage worms. 



IMPORTED CABBAGE WORM. 



(Foiitia rapw.) 



Order Lcpidoptera, Family Pieridw. 



Parent Insect or Butterfly. — The adult parent insect is a white 

 butterfly Avitli black markings on the wings. In the male there is a 

 black spot just beyond the middle of each front wing (besides the black 

 tip), while in the female there are two black spots (besides the black 

 tip). When spread the wings measure about one and one-half inches 

 from tip to tip. 



Fig. 9.— Adult butterflies of the Imported Cabbage Worm. Male above, 

 female below. Natural size. (Photo by Z. P. Metoalf.) 



Historical.— This insect is not a native of this country; it was in- 

 troduced from Europe into Canada about 1860, probably on passenger 

 steamships which carried cabbage in the supplies. It seems to have 

 also been introduced at New York aoout 1868, and within a year had 

 spread for several miles about, and within about three years spread 

 across New Jersey, and within four or five years more it had spread 

 into all the eastern states, including North Carolina. It was introducj^d 

 at Charleston (very likely by boat shipments from the north) in 1873, 

 a few years earlier than it would have reached there by its own natural 

 spread. 



