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U. S. NATIONAL MUSEUM BULLETIN 216 



This species is close to the European L. pictifrons (Thomson), dif- 

 fering most conspicuously in having more densely punctate tergites. 



Specimens (85 cf, 1159) : From Alaska (King Salmon on the Naknek 

 River) ; Arizona (White Mts.) ; British Columbia (Carbonate on the 

 Columbia River at 2,600 ft., Downie Creek in the Selkirk Mts., 

 Nanaimo Biological Station, Robson, and Wellington); California 

 (Crescent City, Inverness, Mill Valley in Marin Co., Smith River, 

 Sonoma Co., and Stinson Beach); Colorado; Connecticut (Ston- 

 ington); Illinois; Maine (Bar Harbor, Baxter State Park at 1,100 ft., 

 Casco, Fort Kent, Liberty, and Machias); Massachusetts (Amherst, 

 Holliston, and South Hadley) ; Michigan (Douglas Lake in Cheboygan 

 Co., East Lansing, Mackinac Co., Midland Co., Muskegon Co., 

 Newaygo Co., Osceola Co., Roscommon Co., and Schoolcraft Co.) ; 

 Minnesota (Plummer) ; New Brunswick (Jacquet River and Nerepis) ; 

 New Hampshire (Mount Madison, Mount Washington, Pinkham 

 Notch, and Randolph) ; New York (Armonk, Barrytown, Canajoharie, 

 Elizabethtown, Greene Co. at 2,500 ft., Ithaca, Kingston, Lake 

 Mohonk in Ulster Co., Lake Sebago in Bear Mountain State Park, 

 Oneonta, and Poughkeepsie) ; North Carolina (Crabtree Meadows in 

 Yancey Co. at 3,600 ft., Craggy Gardens in Buncombe Co. at 5,300 ft., 

 Mount Mitchell at 5,200 ft., Mount Pisgah at 5,300 ft., Newfound 

 Gap and Spence Field in Great Smoky Mountains National Park, 

 Sylva, and Wake Co.) ; Northwest Territories (Norman Wells) ; On- 

 tario (Dows Swamp near Ottawa, Footes Bay, Kearney, Orillia, 

 Ottawa, and Sudbury) ; Pennsylvania (White Haven) ; Quebec (Knowl- 

 ton, Laniel, Sainte Agathe des Montes, and Stoneham) ; Rhode Island 

 (Westerly); South Dakota; Tennessee (Gatlinburg) ; Virginia (Jeffer- 

 son National Forest and Skyline Drive) ; Utah (Logan and Uintah 

 Co.) ; Vermont (Dummerston, Laurel Lake near Jacksonville, Man- 

 chester, South Newfane, and Stowe) ; Washington (Barnes State Park, 



Figures 91, 92. — Localities :|91 (left), Laufeia slossonae; 92 (right), L. navajo. 



