358 U. S. NATIONAL MUSEUM BULLETIN 216 



Fulvous. Head except for more or less of clypeus and center of 

 face, antenna except scape and pedicel beneath, usually stains on pro- 

 pleurum and sides of pronotum, last two segments of hind tarsus ex- 

 cept beneath, and ovipositor sheath, black; wing veins reddish brown; 

 stigma fulvous; wing membrane with a slight dusky tinge. 



This species is extremely close to the Palaearctic T. laevigata 

 (Tschek) 1868, which might be considered a subspecies of T. hilaris. 



Specimens (346 c? 1 , 3639) : From Connecticut (Candle wood Lake, East 

 Hartford, Lyme, Redding, South Windsor, and Storrs) ; Iowa (Boone) ; 

 Kansas (Baldwin City) ; Maine (South Portland) ; Maryland (Cabin 

 John, Glen Echo, Perry Hall, and Plummers Island) ; Massachusetts 

 (Amherst, Blue Hills, Cambridge, Cohasset, Cummington, Dor- 

 chester, Forest Hills, Holliston, Maiden, Mount Greylock, Mount 

 Toby near Sunderland, North Adams, Petersham, South Hadley, 

 South Natick, and Woods Hole); Michigan (Alcona Co., Alger Co., 

 Ann Arbor, Augusta, Bay Co., Benzie Co., Berrien Co., Cheboygan 

 Co., East Lansing, George Reserve in Livingston Co., Gladwin Co., 

 Gratiot Co., Gull Lake Biological Station in Kalamazoo Co., Macomb 

 Co., Mecosta Co., Midland Co., Muskegon Co., Osceola Co., Owosso, 

 Saginaw Co., Sanford, Van Buren Co., Wayne Co., and Wexford 

 Co.); Minnesota (Fort Snelling, Hennepin Co., and Winona Co.,); 

 Missouri (Ozark Mts. at Van Buren); New Hampshire (Franconia 

 and Mount Washington) ; New Jersey (Moorestown and Ramsey) ; 

 New York (Bemus Point, Boston, Buffalo, Connecticut Hill in Tomp- 

 kins Co., Copake Falls, Downsville, Farmingdale, Flatbush, Fort 

 Montgomery, Gardiners Island off Long Island, Grand Island, 

 Greene Co., Hamburg, Hancock, Huntington, Indian Falls, Ithaca, 

 Jones Beach, Long Beach, Ludlowville, McLean, Millwood, New 

 Rochelle, New Russia, New York City, North River, Nyack, Olcott, 

 Oneonta, Oswego, Peekskill, Poughkeepsie, Ridgewood, Rock City 

 in Cattaraugus Co., Roslyn, Sea Cliff, Shokan, Slide Mt. in Ulster 

 Co. at 1,500 and 2,800 to 4,000 ft., Syracuse, Taughannock Falls in 

 Tompkins Co., Troy, Wildflower Reserve near Slaterville, and 

 Wilmington); North Carolina (Crabtree Meadows in Yancey Co. 

 at 3,600 ft., Elizabethtown, Lake Toxaway in Transylvania Co. at 

 2,000 ft., Nantahala Gorge, Riverton, Swannanoa at 3,000 ft., and 

 Waynesville) ; Ohio (Akron, Barberton, Bedford, Blendon Township 

 in Franklin Co., Cleveland, Columbus, Delaware Co., Greene Co., 

 Hinckley in Medina Co., Painesville, Puritas Springs in Cuyahoga 

 Co., Put-in-Bay, Ross Co., Sandusky, Scioto Co., and Summit Co.); 

 Ontario (Grimsby, Jordan, Niagara Glen, Ottawa, Point Pelee, and 

 Ridgeway); Pennsylvania (Allegheny Co., Buena Vista, Carlisle, 

 Chaffee in Elk Co. at 2,000 ft., Du Bois, Enola, Gladwyne, Harris- 

 burg, Hecton Mills, Highspire, Hummelstown, Hunter's Run, Ingle- 



