214 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ue 



no specific value. He did not mention the difference in aedeagus, 

 which to me seems rather important: H. stigma does not show the 

 toothlike lateral expansion near the base that is present in H. stig- 

 materus (see Gurney, 1948, fig. 10, and Nakahara, 1960, fig. 96). 

 The intraspecific range of variability in these structm-es has not been 

 explored adequately, however, and further studies involving dissection 

 of a large number of specunens seems necessary in establishing this 

 possible synonymy. 



Hemerobius conjunctus Fitch 



Hemerobius conjunctus Fitch, Noxious Ins. New York, reports 1 and 2, p. 94, 1856. 

 Alaska: Mt. McKinley Park [A]. *Yukon: Alaska Highway [A]. 

 Alberta: Banff National Park [A]; Mt. St. Piran [USNM]. *Wash- 

 ington: Olympic National Park and Mt. St. Helena [A]. *Oregon: 

 Blue Mountains, Crater Lake, and Wallowa Mts. [A]. *California: 

 Yosemite National Park [A]. *Idaho: Twin Creek Camp in Salmon 

 National Forest [A]. Utah: Uinta Mts. and Cedar Breaks National 

 Monument [A]. *S. Dakota: Black Hills [A]. Colorado: Rocky 

 Mountains National Park, Gothic, Pike National Forest, and Arapaho 

 National Forest [A]. 



Hemerobius kokaneeanus Currie 



Hemerobius kokaneeanus Currie, Proc. Ent. Soc. Washington, vol. 6, p. 85, 1904. 

 *Alaska: Prince of Wales Is. [USNM]. *Alberta: Waterton Lake 

 National Park [A]. Washington: Olympic National Park and Mt. 

 Rainier [A]. ^Oregon : Willamette National Forest and Mt. Hood [A]. 

 ♦Wyoming: Teton Co. [USNM]. Colorado: Newcastle [USNM]. 



Hemerobius bistrigatus Currie 



Hemerobius bistrigatus Currie, Proc. Ent. Soc. Washington, vol. 6, p. 79, 1904. 

 British Columbia: Wellington [USNM]. *Washington: Mt. Rai- 

 nier [A]; Baring [USNM]. Oregon: Ochoco Mts. [A]. Cahfornia: 

 Lake Tahoe and Napa [USNM]. ^Montana: Glacier National 

 Park [A]. 



Hemerobius species 



Alaska: Anchorage, one female [USNM]. 



Head, thorax, and abdominal tergites and sternites deep black, with 

 a faint median light-colored streak on notum. Antennae dark brown; 

 basal joint black. Forewing about 7 mm. in length; membrane uni- 

 formly greyish, unmarked except for a dark dot on crossvein m-cu, 

 and a dark longitudinal streak in pterostigmatic region. 



This may well be a new species. 



