Lepidoptera of New York and Neighboring States 423 



the costa, irregular on the outer side, and rarely widening toward the inner margin. 

 The two outer spots on the costa much as in E. qumquemaculana, more nearly 

 equal, squarer, and each containing a minute brown dot on the costa; spot on inner 

 margin further out, reaching the outer margin below, and less evenly rounded. A 

 minute white streak on middle of outer margin. 13-18 mm. (quintana Zeller). 



June and August. 



New Jersey to Kansas, Alabama, Louisiana, and Florida. 



Var. tryonana Kearfott, from North Carolina, is a variant with each of the 

 two outer costal patches almost divided into a pair of bars, and the anal patch 

 divided into a group of four partly fused spots. The antemedial fascia is even in 

 width and does not reach the costa. I have only seen the types, which were taken 

 in May. 



9. E. ridingsana Robinson. Varying from pale ochreous to pale brown; the mark- 

 ings finely edged with black. A silver streak through middle of wing from base 

 to end of cell, ending in a point; a silver streak along middle third of costa, leaving 

 costa at two-thirds and ending in a point between the end of the first streak and 

 the apex; a small costal dot beyond it; and a larger triangular patch before apex; 

 an irregular silver mark at anal angle, and inner margin silvery; a small silver 

 triangle on costal half of outer margin. 20 mm. 



A specimen from Illinois differs only in the silver costal streak extending prac- 

 tically to the base, and outwardly joining the two outer costal spots (Conchylis 

 Robinson) . 



August ; September. 



Manitoba to Illinois, Louisiana, and west. 



Besides the two following, there are several other well-marked forms of this 

 group, which may be new species, or more local strains of ridingsana. 



1j. E. argentifurcatana Grote. Usually considered a variety of E. ridingsana, 

 but at least a constant and clearly denned form. Similar to E. ridingsana ; median 

 stripe deeply notched on lower side; basal end of costal stripe curving down and 

 joining it at the point where it is notched below. 40 mm. Not seen. 



A form of this group from Southern Pines, North Carolina, and Texas agrees 

 with this, except for its much smaller size. (20 mm.) It has been taken from 

 August to October. 



Ontario. 



11. E. hipeana Grote. Markings mostly as in ridingsana; costal streak divided 

 into a bar on basal two-fifths of costa, fading out just before reaching base, and 

 an oblique outer fascia starting at middle of costa, and running out obliquely 

 across the end of the cell, like the outer part of the costal stripe of ridingsana. 

 37 mm. This is also a possible form of ridingsana. 



Port Stanley, Ontario. 



A dwarf variant of this form also occurs in Nantucket, Massachusetts, North 

 Carolina, Illinois, and Texas; it flies in August and September. 



12. E. mandana Kearfott. Dull brown, not powdery, lighter than E. fulminana. 

 Costa faintly striate with blackish on basal two-thirds and with lead-gray and 

 dirty white toward the apex; the last stria at the apex distinctly whitish, large, 

 and a little contrasting. A lead-colored line from costa at three-fourths way out, 

 to outer margin about at M 2 . Speculum somewhat paler, with two lead-colored 

 bars, more nearly parallel than in E. fulminana; the outer bars broken, enclosing 

 three black longitudinal streaks. Fringe powdery white on blackish. Hind wing 

 mouse gray; the extreme apex striate. 18 mm. 



June. 



New Jersey to Texas. 



13. E. nandana Kearfott. Fore wing broad; outer margin slightly concave, but 

 not notched. Fuscous, regularly dotted with little groups of white-barred scales; 

 base slightly darker, ils outer boundary oblique inwardly to inner margin; a 



