534 



U. S. NATIONAL MUSEUM BULLETIN 216 





Figure 252, 253. — Localities: 252 (left), Labena grallator grallator; 253 (right), 



L. g. xutha. 



(Manville and Westerly); South Carolina (Greenville, Horry Co., 

 McClellanville, Pregnall, and near Tigerville) ; Tennessee (Burrville, 

 Greenbrier Cove in Sevier Co., Headquarters of Great Smoky Moun- 

 tains National Park, and Knoxville); Texas (Austin, Brazos Co., 

 Brazos River in Richmond Co., Cypress Mills, Dallas, Daj^ton, Fort 

 Worth, Hunt Co., Liberty Hill, Paris, Salado Creek in Bexar Co., 

 and Smith Point); Virginia (Arlington, Bluemont, Falls Church, 

 Glencarlyn, Mount Vernon, Norfolk, Vienna, Warm Springs Mts. in 

 Bath Co. at 1,300 ft., and Westmoreland State Park in Westmoreland 

 Co.); West Virginia (Bolivar); and Wisconsin (Jefferson). 



Collection dates are throughout the growing season, with a pre- 

 ponderance of the collections in late spring and the first hall of sum- 

 mer. In Florida and Texas the species is common in March and 

 April, and in southern Florida it has been taken on December 30. 

 At the latitude of Washington, D. C, the earliest spring date is 

 May 2 (at Takoma Park, Md.), and the latest fall dates are Sept. 25 

 at Bolivar, W. Va. and Oct. 25 at Charlottesville, Va. We find the 

 species common at the edges of woods and in overgrown fields, wherever 

 there are dead bushes or piles of brush. It flies low, about 0.1 to 

 0.3 meters from the ground, among weeds, around dead wood, or 

 higher over piles of brush, nearly always in the sunshine. In flight, 

 it resembles some species of Polistes. 



The species has been reared from borers in many kinds of wood. 

 Specimens with definite host records are: 39 (type and paratypes of 

 conjusa), from Thrincopyge alacris, Texas, F. M. Webster. 9, from 

 Chion in Quercus alba, Falls Church, Va., May 29, 1916, J. N. Knull. 

 cf, from Chrysobothris impressa, Miami, Fla. 9, from Saperda puncti- 

 collis, Hummelstown, Pa., 1923, J. N. Knull. Rearings from various 

 woods without determination of the insect host include two rearings 



