4 i8 REPORT OF NEW. JERSEY STATE MUSEUM. 



replaced the native species. The larva is always abundant on and 

 sometimes very injurious to cabbage, cauliflower and other crucifer- 

 ous plants. It is kept in check by applications of arsenical poisons. 



Fig. 176. The cabbage butterfly, Pieris raps: a, female 

 adult; b, egg from top and side; c, larva; d, chry- 

 salis: a, c and d slightly enlarged; b, greatly 

 enlarged. 



var. immaculata Sk. & Aaron. Riverton IV, 16 (Jn) ; Paterson V, 2 

 (Gr). This is a spring form in which the spots are much reduced or 

 wanting, and which has been mistaken for "oleracea." 



ANTHOCHARIS Bdv. 



A. genutia Fab. Local, throughout the State in April and May. Del. 

 Water Gap, Ramapo Mts. (Bt) ; Great Notch V, 7, Little Falls V, 

 14 (Ds) ; Paterson IV, 27-V, 20, eggs on "Arabis lyrata" V, 11-18, 

 larvse V, 19-VI, 26 (Gr) ; Orange Mt. Dist. (div) ; Westville, Mt. 

 Holly, 7-mile beach (Aaron); Timber Creek, Riverton (Jn); Laurel 

 Springs IV, 29 (Hoyer). The larva feeds on "Arabis" and "Sisym- 

 brium." 



CATOPSILIA Hbn. 



C. eubule Linn. Occasionally common in September in the southern sea- 

 shore counties and flies northward for long distances. It is recorded 

 from Chester (Dn), Ft. Lee (Bt), Newark (div), Staten Island (Ds), 

 and many points to the southward. It is our most conspicuous and 

 largest butterfly of this family, and the larva feeds on "Cassia," 

 which is very abundant in Cape May County. 



