ICHNEUMON-FLIES, PART 2\ EPHIALTINAE 157 



(Christopher Lake) ; South Dakota (Harding Co.) ; Tennessee (Ramsay 

 Cascades Trail in Great Smoky Mountains National Park); Utah 

 (Lambs Canyon in Salt Lake Co.); Vermont (Laurel Lake near Jack- 

 sonville and Plainfield); Washington (Ashford, Blue Mts., Kanaka 

 Bay on San Juan Island, Lake Cushman, Mount Constitution on Orcas 

 Island, Mount Rainier at 2,700, 2,900, 4,700, and 5,000 ft., Paradise 

 Valley on Mount Rainier, Puyallup, San Juan Island, Spanaway, 

 Summerland Trail on Mount Rainier, and Walla Walla); Wisconsin 

 (Wood Co.); and Wyoming (Centennial at 8,000 ft.). 



The great majority of capture dates are from May 20 to July 31. 

 The few records outside of this range are: April 1 and May 12 and 15 

 at Robson, B. C; April 12 at Fairfax, Marin Co., Calif.; April 17 at 

 Berkeley, Calif.; April 20 at Spanaway, Wash.; April 24 at Ithaca, 

 N. Y.; April 28 at Brookdale Lodge, Calif.; April 30 at Oakland, Califs- 

 May 16 at Merivale, Ont.; "August" at Oakland, Calif., at Priest Lake, 

 Idaho, and at Walla Walla, Wash.; August 6 at Helena, Mont.; August 

 12 at 6,000 ft. in Manning Park, Blackwater, B. C; August 15 at 3,200 

 ft. on Diamond Head Trail, near Squamish, B. C; and October 22 at 

 Robson, B. C. 



Reared specimens are as follows: 9, labeled "parasitic on larva Sm. 

 ophthalm." d\ reared from Pinits ponderosa infested with Asemum 

 nitidum and Xiphydria sp., Talent, Oreg., May 14, 1913, B. T. Harvey. 

 Other lots are labeled "Abies magnified," "Pinus murrayana," "P. 

 scopulorum," and "P. ponderosa" (two lots). Presumably these were 

 reared from or collected on these kinds of trees. In our own collecting 

 we have found the species common in coniferous woods. 



This species is Holarctic. In America it is transcontinental in the 

 Hudsonian, Canadian, and Transition zones, where it is often common 

 in coniferous forests. It is adult mostly from late May to the end of 

 July. The usual hosts appear to be borers in conifers, particularly 

 Pinus, but definite rearing records are very scanty. 



VI. SERICEUS GROUP 



Median segments of male flagellum enlarged, about twice as wide 

 as the basal segments; basal rim of clypeus unusually strongly elevated 

 and set off from rest of c^^peus and with an unusually well-developed 

 row of long, suberect hairs; temple moderately swollen; pronotum 

 entirely black; dorsal end of prepectal carina slanted toward and al- 

 most reaching front edge of mesopleurum, ending at a level just above 

 middle of hind margin of pronotum; thorax with exceptionally long, 

 dense hair; mesepimeron with long hairs all over; nervellus broken 

 above the middle; hind femur of female about 5.4 as long as deep; 

 ovipositor sheath about 1.95 as long as front wing; dorsal lobe near 



