46 JOHN B. SMITH. 



which is attached the loop-like claviform. The cell is black around and between 

 the ordinary spots, which are connected ; an unbroken black line margining 

 both. Orbicular elongate, with a slightly darker core: a narrow spur extending 

 to the reuiform, which is moderate in size and kidney shaped. A black spot 

 below reniform. The s. t. and terminal spaces are prominently marked by the 

 four pale streaks so characteristic of the A-dentata series of this genus ; the black 

 intermediate dashes distinct ; no distinct s. t. line. Secondaries clear, pure white. 

 Beneath white, somewhat powdery, without line or spot. Expands 1.32 inches; 

 33 mm. 



Habitat. — British Columbia, Spencer's Bridge. 



The type is a unique male from Mr. Neumoegen ; easily distin- 

 guished from its allies in the 4:-de7itata group by the pure white sec- 

 ondaries, the united ordinary spots and elongate orbicular ; a com- 

 bination shared by no other species. The genitalia are of the 

 bifurcate type usual in the group to which the species is referred. 



Agrotis cogitans sp. nov. — General color ashen giay with a slight luteous 

 tint. Head and thorax unicolorous; collar with a median transverse black line. 

 Primaries in some specimens with fine blackish powderings, usually very even 

 and smoothly colored without shadings or contrasts of any kind. Basal line in 

 a fully marked specimen geminate, distinct on costa and traceable to the basal 

 dash ; in other specimens it is entirely obsolete. T. a. line geminate, the two 

 lines equally distinct, strongly oblique outwardly and outcurved in the inter- 

 spaces; sometimes almost entirely obsolete. T. p. line single, fine, crenulate, 

 strongly outcurved over cell, and then almost parallel with the outer margin; 

 in some specimens nearly obsolete, but generally traceable. S. t. line usually 

 entirely wanting, rarely indicated by a vague dusky shading. A series of black 

 terminal lunules. A distinct narrow longitudinal basal line to the t. a. line, 

 beyond which the claviform is more or less indefinitely marked with a few black 

 scales. Orbicular concolorous, slightly ovate, usually distinctly outlined in black 

 sometimes with a preceding black line, sometimes with a narrow line connecting 

 it with the reniform. The reniform is inwardly well defined by a curved black 

 line, outwardly vague and indefinite, but usually traceable. Secondaries in the 

 male pearly with a smoky tinge; in the female somewhat darker. Beneath 

 white, powdery, with a variably distinct outer line and discal spot to all wings. 

 Expands 1.50 — 1.75 inches ; 38 — 44 mm. 



Habitat. — California (Neumoegen). 



Four specimens % and $ are before me, no two of which are 

 alike and which yet vary very slightly. The transverse lines are 

 more or less obsolete and the concolorous ordinary spots with their 

 narrow black outline and marking are somewhat variable in shape 

 and in their relations to each other. In structural characters the 

 species agrees with that section of the pitychroiis group of which 

 hoUemani is a member. In type of marking there is a curious re- 



