1874.] 143 [Morrison. 



yellowish posterior wings. In this species the abdomen is only very 

 slightly tufted, and the marking of the subterminal line is absent. 



M. illdbefacta is apparently closely allied to 31. lilacina Harvey, 

 which was published after this description was written. But Mr. 

 Grote, who has typical specimens of both species, informs me that 

 they are distinct from one another. 



Mamestra olivaeea nov. sp. 



Expanse 26 mm. Length of body 11 mm. 



A small, robust species, with coarse and rough villosity. Eyes 

 hairy. Palpi gray. Collar olivaceous gray, with a distinct black 

 terminal line. Thoracic tufts short and thick. Tegulae large and 

 well separated, white, with a terminal black line. Abdomen tufted. 

 On the anterior wings the median space is gray, strongly suffused 

 with green ; the basal space is of a lighter gray, also more or less 

 green. The terminal and subterminal spaces white, with green 

 patches at the inner angle and costa, and also along the outer margin. 

 A black basal dash. The lines simple and black. Half-line present, 

 Interior line outwardly curved, most clear opposite to the claviform 

 spot, which is large, concolorous, and outlined in black. Median 

 shade curved, black, and diffused, passing between the ordinary 

 spots to the base of the reniform ; from this point it extends, closely 

 adjacent to the exterior line, to the inner margin. The spots are 

 very distinct, of normal shape, whitish (the reniform most clearly so), 

 with greenish central shades. The exterior line is very evident, 

 continuous, non-dentate, and but little drawn in below the cell. The 

 subterminal line obsolete. After it the greenish shades prevail in the 

 terminal space, and the nervules are then plainly marked with black, 

 particularly the fourth median branch. Fringe dark, indistinctly cut 

 with light. Posterior wings whitish at the base, with a very broad, 

 dark fuscous, terminal band, and large discal dots. Beneath gray, 

 the posterior wings whitish in the basal and median spaces. A com- 

 mon line, and very black discal dots, especially on the posterior 

 wings ; on the anterior a series of light dots at the base of the fringe. 



Hab. New York; New Hampshire. 



Two specimens taken in the Adirondack Region by Mr. F. C. 

 Bowditch; and one taken at Gilmanton, N. H., August 18, 1874, 

 by Mr. Holmes Hinckley, who has kindly lent it to me for de- 

 termination. Separated from the other species of Mamestra except 

 31. laiulabilis Guen., by the green coloration; from this species, how- 

 ever, it is very different in size as well as markings. 



