ICHNEUMON-FLIES, PART 2: EPHIALTINAE 421 



(Alger Co., Hartwick Pines State Park in Crawford Co., Sault Ste. 

 Marie, Schoolcraft Co., and Whitensk Point in Chippewa Co.) ; 

 Minnesota (Itasca Park and Lake Itasca) ; New Brunswick (Frederic- 

 ton) ; Newfoundland (Hopedale in Labrador and Salmonier) ; New 

 Hampshire (Pinkham Notch and Rumney) ; New York (Cliff Mt. in 

 Essex Co. at 3,000 ft. and Ithaca); North Carolina (Pisgah Mt. at 

 5,600 ft.) ; Nova Scotia (Grand River and Truro) ; Ontario (Ancaster, 

 Hymers, Missanabic, and Ramsay) ; Pennsylvania (Charter Oak in 

 Huntingdon Co. and New Bloomfield) ; Prince Edward Island (Al- 

 berton) ; Quebec (Cascapedia, Harrington Lake in Gatineau Park, 

 Montigny, Montreal, Mount Albert in Gaspe Co., Pentecost, Sague- 

 nay River, and Valley Junction) ; Tennessee (Clingmans Dome in 

 Great Smoky Mountains National Park at 6,400 ft. and Great Smoky 

 Mountains National Park at 6,000 ft.); and Vermont (Laurel Lake 

 near Jacksonville) . 



Dates of collection are during the summer, the earliest and latest 

 dates being June 4 at 6,000 ft. in Great Smoky Mountains National 

 Park; June 7 at Ithaca, N. Y.; and August 9 at Missanabic, Ont. 



A female from Lyme, Conn., is labeled "ovipositing in Tsuga cana- 

 densis infested with siricids." 



This subspecies occurs in the Canadian zone of the East. 



2. Megarhyssa greenei Viereck 



Male: Front wing 10 to 16 mm. long; cheek about 1.0 as long as 

 apical width of mandible ; median part of apical edge of first sternite 

 distinctly beyond hind edge of spiracle of first tergite; median apical 

 membranous streak of tergites 3-5 extending about 0.3 the length of 

 the tergite; apicolateral angle of tergites 3-5, 75° to 90°. 



Female: Front wing 12 to 27 mm. long; cheek about 1.0 as long as 

 apical width of mandible; median part of apical margin of first sternite 

 about opposite hind edge of spiracle of first tergite; apicolateral angles 

 of tergites 3-5 about 95°; fourth tergite mostly polished, with fine, 

 moderately dense punctures basally and near ventral edge, the rest 

 almost impunctate; ovipositor sheath about 1.8 as long as front wing. 



There are two subspecies, one in Florida and the other in most of 

 the rest of eastern North America, ranging from the Canadian to the 

 Upper Austral zone: 



1. Wings hyaline or almost so, the front wing of the female usually with a brown 

 spot in base of radial cell and apex of discocubital cell (fig. 319, b); range: 

 eastern North America from Canadian to Upper Austral zone. 



2a. greenei greenei Viereck 



Wings rather uniformly dark brown (fig. 319,c), at least in the female (male 



unknown); range: Florida 2b. greenei floridana, new subspecies 



