40 



B. Subreniform usually about Yi mm. in diameter; size larger 

 than corresponding Eastern forms, (by about 5 mm.), 

 Western and Alaska. 



a. Size 40-42 mm., basal, t. a. and median lines well 

 written, conspicuous; 



a^. Median area not shaded so as to appear contrast- 

 ing darker, — race siculifer 



b^. Median area shaded and appearing contrastingly 



darker, — race alaskensis 



b. Size 35 mm., basal, t. a. and median lines suffused, 

 broadened, not well written, — form grotei 



II. Outer margin of primaries produced between the veins into 

 rounded projections; not evenly curved and entire (Falcaria) 



A. Ground color of primaries light yellowish to brown, 

 Eastern. 



a. Primaries covered with brownish strigae hilineata 



b. Primaries lacking strigae, — form levis 



B. Ground color blackish-brown, (projections between the 

 veins somewhat less produced than in the eastern forms), 

 Alaska. 



a. Primaries covered with dark-brown strigae rampartensis 



b. Primaries lacking strigae, — form hudsoni 



