39 



Drepana rampartensis, sp. nov. 



Intermediate between the eastern D. hilineata and the European D. lacertin- 

 aria in general habitus. 



The color is even darker than in the European species being a blackish 

 brown. Head, thorax and abdomen dark brown. T. a. line black-brown, bor- 

 dered internally by a light yellowish line or shade, oblique from costa curved 

 inwardly from below median vein. T. p. line oblique outwardly from costa to 

 vein 8, bent inwardly below, produced on vein 4, oblique to near vein 1 from 

 whence it is somewhat excurved to inner margin. S. t. white, inconspicuous ; an 

 apical suffusion of deep red-brown and white. Reniform a dot, deep black- 

 brown. Numerous dark brown strigae present. Veins conspicuously marked 

 with dark-brown. Secondaries pale, silky, with grayed-over appearance due to 

 a scattering of dark scales on the under side which show thru. Ordinary spot 

 as in hilineata. 



Underside entirely similar to hilineata but the yellowish and brown tints are 

 replaced by dark gray-brown. 



Size : 31 to 2>Z mm. 



We might be tempted to consider this species a race of either the 

 Eastern hilineata or the European lacertinaria but for the fact that the 

 primaries are not as deeply falcate below the apex, nor are the marginal 

 points so produced. 



Type locality and numher and sex of types: Ramparts, Alaska, Holo- 

 type $ , 8th-15th June ; 3 Paratype $ 's, 16th May, 24th-31st May, 8th-15th June 

 respectively. 



Drepana rampartensis form hudsoni, nov. 



This is the form of rampartensis corresponding to levis, Hudson. The pri- 

 maries are not crossed by the numerous strigae, and the size is smaller : 28 mm. 



Type locality and sex of type: Ramparts, Alaska, Holotype $, 8th-15th 

 June. 



Key to the Species and Forms of the Genus Drepana 



I. Outer margin of primaries ; except for the hooked apex ; evenly 

 curved, entire — (Drepana) 



A. Subreniform seldom or never more than 1/3 mm. in di- 

 ameter, usually little more than a mere dot; Eastern. 



a. Pale ochreous to straw color; basal, t. a., and median 



lines usually clean cut arcuata 



b. Darker, amber yellow ; basal, t. a. and median lines 

 usually somewhat suffused, with at tendency not to be 



clearly written ; — form geniculata 



