BALCLUTHA — BLOCKER 



15 



Male pygofer as impicta but sometimes with rounded projection on 

 postero ventral margin; plates as impicta,] connective expanded 

 apicallj^, slightly bifid, longer than style, stem longer than arms, 

 angle between arms rounded; style wdtli preapical lobe rounded, 

 apical extension long, rounded apically; aedeagus broad basally, with 



Figure 6. — B. arctica: a-c, aedeagus, lateral view; d, style and connective, dorsal view; 

 e, female abdominal sternum VII, ventral view. 



basal one- third approximately parallel margined, shaft narrowed, 

 slender, curved dorsally then anteriorly. 



Color from stramineous to light green to brown; face commonly 

 with faint oblique brown lines on each side of midline; thoracic venter 

 commonly dark; forewings hyahne to subhyaline; abdominal dorsum 

 dark. 



The male holotype from Dawson, Yukon (June), is in the Canadian 

 National coUection. Material compared with type by B. P. Beirne 

 has been examined. Additional material examined was from British 

 Columbia and Northwest Territory (July), Idaho (July), Montana 

 (June and July), New Mexico (June and July), Wyoming (July), 

 and Frio, D. F. [Mexico] (Oct. and Nov.). 



