LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 551 



plete, transverse; postmedial complete, strongly sinuous, and distinct, sharply bent 

 in on R 4 and on Cu, and A; a series of black terminal dots, immediately preceded 

 by an even whitish line, defined on inner side with darker. Discal luiiule black, 

 with grayish white center kidney-shaped, concave on outer side, with more or less 

 distinct blackish shades before and beyond it. Hind wing cream-white, with a 

 broad, even but diffuse, darker border, and dark gray terminal line. 15 mm. 

 (rogatalis Hulst.) 



Apparently introduced from the Old World. Larva most often on Cmciferse 

 and sometimes injurious in warm countries. 



Southern States, probably not quite reaching our area. 



2. H. phidilealis Walker. Similar to H. undalis; clay-color; hardly, if at all, 

 shaded with blackish ; the lines not quite so irregular and defined with slightly 

 darker clay-color; the region about the reniform con^olorous ; reniform rounded- 

 trapezoidal, oblique; rather smaller than in II. undalis, not concave on outer side 

 and strongly iridescent with violet. Hind 'wing whiter, its border less distinct. 



This form appears to be the native representative of H. undalis, and possiblv 

 interbreeds with it. Intermediates appear to be rare. 



Southern States and southward; doubtful in our area. 



31. EVERGESTIS Hiibner 

 (Pionea, Mesographe) 



Similar to Pyrausta ; maxillary palpi extending fully to end of second segment 

 of labials, rather truncate at tip (fig. 335). Labial palpi rather more closely 

 scaled, the third joint porrect. moderate, pointed, its base hardly concealed in the 

 vestiture of the second joint. 



1. E. straminalis Hiibner (Pur pie -backed cabbage worm). Straw yellow, some- 

 what dusted with brown ; basal line obscure, angulate at middle when ' most 

 distinct; antemedial line from costa at two-fifths, perpendicular to cell, deeply 

 concave across cell, forming a sharp tooth on Cu t , the tooth touching the lower 

 end of the reniform. then strongly oblique to its inner margin; postmedial line 

 excurved above; below, parallel to outer margin and slightly waved; reniform a 

 brown outline, deeply constricted at middle, normally 8-shaped. Subterminal 

 region shaded with brown, outlining a triangular yellow patch on upper part of 

 outer margin; terminal line brown. Hind wing translucent whitish, yellower 

 toward margin, with traces of a fine brown postmedial line, and a narrow brown 

 terminal band. 20-25 mm. (H 49:45.) 



May to, September; two broods, flying mainly in June and August. Quite variable 

 in the amount of brown shading. Larva dark green or violet, shaded with yellow 

 on sides and paler below; with black head and tubercles; on Cmciferse in 

 September; rarely injurious. 



Very common northward; also in Europe. Xew York. Common everywhere. 



2. E. rimosalis Guenee (Cross-striped cabbage worm). Fore wing rather longer 

 than E. straminalis; hind wing with marked apex, less falcate than in Diasemia, 

 Fore wing light yellow, shaded with brown along the costa, over end of cell, and 

 more heavily on outer third; the upper boundary of the latter shade forming an 

 oblique streak running to the apex ; antemedial and postmedial lines browit, weak, 

 subparallel to outer margin, wavy, nearly trisecting the wing; with faint lines 

 between them; reniform spot dark, obscure. 27 mm. 



Eggs in a cluster, overlapping. Larva bluish gray with three or four trans- 

 verse black stripes on each segment, and a bright yellow stigmatal band. Prob- 

 ably three broods; pupa in the ground; the third brood wintering and emerging 

 in April. 



West Virginia to Illinois, Colorado, Washington, and south, Xew York : Long 

 Island. 



