140 U. S. NATIONAL MUSEUM BULLETIN 216 



Gap at 3,500 ft.) ; Texas (Paris) ; Vermont (Laurel Lake near Jackson- 

 ville) ; Virginia (Appalachian Trail, Arlington, Bluemont, Camp Pick- 

 ett, Chain Bridge near McLean, Charlottesville, Dayton, Difficult 

 Run in Fairfax Co., Falls Church, Glencarlyn near Washington, 

 Great Falls, Gunston Cove on the Potomac River, Hot Springs, Lewis 

 Falls in the Shenandoah, Meadows of Dan in Patrick Co., Mount 

 Vernon, Mountain Lake Biological Station in Giles Co., Nelson Co., 

 Richmond, Rosslyn, Turkey Run, Vienna, Summit in Whitetop Mts., 

 and "Willis Mt."); West Virginia (Bolivar, Cheat Mt. at 2,000 ft. in 

 Randolph Co., Cheat River, Morgan town, and Spruce Knob at 4,860 

 ft.) Wisconsin (Bayfield, Jackson Co., Madison, Milwaukee, Portage 

 Co., and "Wyarno"). 



This species is the most spectacular of the common ichneumonids 

 to reward the collector who feels the urge to look for insects in the 

 first warm days of spring or the last ones of fall, and can be found 

 throughout the growing season. Over most of its range it is on the 

 wing from about April 20 to mid-October, earlier and later in the 

 South. In our experience, this species flies in hardwood woods and 

 brush, rather near the ground. Noteworthy early and late records 

 are: March 24 at Oxford, Miss.; March 28 at Littleville, Ala.; April 6 

 and 7 at Southern Pines, N. C; April 10 at Clementon, N. J., at 

 Chicago, 111., and at Falls Church, Va.; April 12 at Greenville, S. C. 

 and in Rice Co., Minn.; April 13 at Camp Pickett, Va.; April 14 at 

 Lawrence, Kans.; April 15 at Ami Arbor, Mich.; April 20 at Madison, 

 Wis.; April 21 and 22 at Ithaca, N. Y.; October 8 in Hocking Co., 

 Ohio; November 3 at Arlington, Va.; November 14 at Raleigh, N. C; 

 November 17 and 19 at Takoma Park, Md.; November 20 at Mobile, 

 Ala.; and November 25 at Austell, Ga. 



Rearing records are: 1 from Anoplodera proximo, in Acer, 1 from 

 Megacyllene pictus in Carya, 1 from Elaphidion incertum in Carya, 1 

 from E. parallelum, 1 from E. villosum in Castanea dentata, 1 from 

 E. villosum in Quercus, 1 from Elaphidion sp. in Quercus twig, 1 from 

 Graphisurus, 1 from "Leptura" in Quercus, 1 from Melandrya striata 

 in Fagus, 1 from Obrium rufulum in Fraxinus, 1 from Pachyta lamed, 

 1 from Stenocorus lineatus, 1 from Ramosia tipuliformis, 1 from Saperda 

 discoidea, 2 from Synchroa punctata, 1 from Xylotrechus annosus, 3 

 from Carya, 1 from Quercus, and 2 from oak pruner twigs. 



This species is common in woodlands and brush in the Transition, 

 Upper Austral, and Lower Austral zones of eastern North America. 

 It is adult from rather early spring to rather late fall. Hosts include 

 Aegeriidae, Melandryidae, and a variety of Cerambycidae, most of 

 them borers in hardwoods, in a large percentage of the cases in hard- 

 wood branches lying on the ground. 



