THE CANADIAN ENTOMOLOGIST. 235 



darker, more purplish brown, while cupidissimd is pale reddish clay color. 

 But the powdery markings are the same in shape, and, bearing in mind 

 the variation in cupida, it seems easy to include laetula as a form of cnpid- 

 issima. At the same time the body seems slenderer in the type specimen 

 I have, and the form more compact. These forms all have the collar 

 unlined. 



Agrotis placida. 



A dark form with pale terminal space, but much smaller than alter- 

 tiata, which Mr. Hill has taken in the Adirondacks. Four specimens sent 

 me from Nevada may be forms of this species. They all come from Dr. 

 Bailey. One has the fore wings shaded with brown, median and terminal 

 space both paler, markings quite distinct. Another is almost unicolorous 

 blackish with the shadings and markings powdery. Again, another has a 

 reddish cast reminding one of cupida, but with pale terminal space. It 

 does not seem possible that these Nevada specimens belong to distinct 

 species, but for some time to come it is evident that our determinations in 

 this group will be provisional unless we can find other characters than 

 coloration and size to distinguish the "species." 



Agrotis alternata. 



A heavier form than cupida, the terminal space contrasting and paler. 

 Varies much in tone ; some specimens shaded with orange or reddish 

 brown. Generally it seems of a clay color. One specimen from Nevada 

 (Dr. Bailey) may be a distinct species. The median lines are more pro- 

 pinquitous and shaded with pale scales ; the terminal space strongly con- 

 trasts. It is more likely, however, to be an extreme variety. Agrotis 

 orbis from California may only be a form of alternata. I have a specimen 

 from Colorado which seems intermediate, but which I refer to alternata 

 provisionally. I have recently identified Glaea anchocelioides of Guenee, 

 which resembles some varieties of alternata. but has unarmed tibiae. 



Hadena sen es ecus, n. s. 



$ ^ . Male antennas simple, ciliate ; eyes naked, lashed. A tuft 

 behind the collar and on the thorax behind. Tibiae unarmed. Primaries 

 straight along costal margin ; wings rather broad. Pale dust color with 

 the costal region to s. t. line of primaries shaded with brown. Lines 

 double. Orbicular oblique, narrow above, rounded below. Reniform 

 large, pale with internal black annulus. Disc between the spots black. 



