Morrison.] 156 [November 4, 



Pteroscia atrata nov. sp. 



Expanse 40 mm. Length of body 15 mm. 



Palpi, front, collar and thorax, black. The edge of the palpi, the 

 collar, and the tuft behind the collar, ferruginous gray. Anterior 

 wings shining black, with scattered lighter scales. The markings are 

 deeper black, and show but faintly. Interior line scarcely distin- 

 guishable, preceded by a line of lighter scales. The ordinary spots are 

 of medium size, and filled with scattered lighter scales ; in shape the 

 orbicular is round, the reniform lunate. The exterior line is black, 

 quite distinct, strongly dentate, and deeply drawn in between the 

 nervules ; followed by a line of whitish scales, which culminate on 

 each nervule in a white spot. A series of light spots at the base of 

 the fringe, which is dark, and in addition a number of distinct ante- 

 apical white dots. Posterior wings uniform, dark grayish fuscous. A 

 discal lunule. A black line at the base of the fringe, which is yellow- 

 ish white, with a central darker line. Wings beneath dark grayish 

 fuscous. Secondaries lighter. Nervules tinged with yellowish. The 

 anterior have the ante-apical dots present, and the costal and terminal 

 spaces covered with light scales. The posterior wings show a median 

 band and discal dot. 



- Hab. Mt. Washington, N. H. Two specimens taken at night near 

 the Half Way House, July 5th and 7th, 1874. 



A striking form, apparently confined to the mountain fauna. 



The new species described below are from a fine collection of Noc- 

 tuidse sent me for study by Prof. C. V. Riley, State Entomologist of 

 Missouri, and I cheerfully acknowledge my obligation to him for this 

 and many other kind offices. 



The new genus characterized is peculiarly interesting, on account 

 of its abnormal palpal structure, which is the more striking as the in- 

 sect is small and slender bodied. ' 



Mamestra incincta nov. sp. 



Expanse 28-30 mm. Length of body 13-14 mm. 



Eyes hairy. Male antennas shortly bipectinate. A slight protho- 

 racic furrowed tuft. The abdomen is untufted. The thorax and 

 anterior wings are light gray, somewhat yellowish; in one fresh 

 specimen, with a slight purple reflection. The median lines are black, 

 simple and denticulate, the one preceded, the other followed by a 

 lighter shade line. The half-line present. The interior line oblique , 

 forming two particularly prominent teeth, one on the costa, the other 



