200 U. S. NATIONAL MUSEUM BULLETIN 216 



Harbor) ; Maryland (Glen Echo) ; Massachusetts (Auburndale, Hollis- 

 ton, and Lexington); Michigan (Ann Arbor, Clare Co., Genesee Co., 

 Iosco Co., Lapeer Co., Macomb Co., Midland Co., Monroe Co., and 

 St. Clair Co.) ; New Hampshire (Gorham, Mount Washington, and 

 Pinkham Notch) ; New Jersey (Ramsey) ; New Mexico (Jemez 

 Springs) ; New York (Lake Sebago in Bear Mountain State Park, Big 

 Indian Valley in the Catskill Mts., Boston, Farmingdale, Ithaca, 

 Keene Valley, McLean, New York City, Oneonta, Poughkeepsie, 

 Mount Whiteface at 1,000 to 2,000 ft., and Tuxedo); Ohio (Akron); 

 Ontario (Gananoque, Orillia, Ridgeway, and Toronto) ; Pennsylvania 

 (Allegheny County, and Powermill Nature Reserve in Westmoreland 

 Co.) ; Quebec (Brome, Kazubazua, Knowlton, Lac Nominingue in 

 Labelle Co., and St. Esprit) ; Rhode Island (Hopkington) ; South 

 Dakota (Mount Rushmore) ; Vermont (Rutland) ; Washington (Val- 

 leyford) ; and West Virginia (Cheat Mt. at 2,000 ft.). 



Collection dates are rather evenly distributed from late in May to 

 August 25, with one collection in September. Especially early and 

 late seasonal dates are: May 12 at Akron, Ohio; May 17 at Valley- 

 ford, Wash.; May 20 at Ann Arbor, Mich, and at Waha, Idaho; May 

 28 in Monroe Co., Mich., and in Macomb Co., Mich. ; June 6 at Brome, 

 Que.; August 21 at St. Esprit, Que.; August 22 in Hinckley County, 

 Ohio; August 23 at Lexington, Mass.; August 23 and 24 at Pinkham 

 Notch, N. H.; August 25 on Mount Whiteface, N. Y., at 1,000 to 

 2,000 ft.; and September 6 at Banff, Alta. 



This species is transcontinental, in the Upper Austral to Hudsonian 

 zones. 



VI. MONTIVAGUS GROUP 



Front wing 3.0 to 4.3 mm. long; head rather high, with moderately 

 narrow temple and moderately long cheek; face moderately narrow 

 and moderately convex, its interantennal process moderately short, 

 the point making an angle of about 85 degrees; frons moderately 

 convex, a little impressed near antennal sockets; occipital carina 

 absent dorsally and below, present laterally as a fine weak carina; 

 median half of clypeal margin truncate; head black, the face, clypeus, 

 and subtriangular spot at top of eye pale yellow, the face and clypeus 

 sometimes partly brownish; frons laterally black, or partly or entirely 

 yellowish; cheek and lower part of temple usually pale yellow; notaulus 

 rather long but weak and not very sharp; metapleurum without discal 

 hairs; costula complete, incomplete or absent; median longitudinal 

 carinae and apical transverse carina of propodeum complete, the me- 

 dian longitudinal carinae subparallel or gradually convergent basally, 

 not bent inward just basad of the position of the costula; second 

 lateral area of propodeum with hairs apicolaterally, laterally, or all 



