ICHNEUMON-FLIES, PART 2 1 XORIDINAE 445 



black or blackish ; hind leg beyond coxa varying from brownish fulvous 

 with its second trochanter and femur mostly clear fulvous (the femur 

 infuscate apically) , to blackish brown ; median part of abdomen some- 

 times stained with ferruginous; wings subhyaline. 



Female: Front wing 4.0 to 7.8 mm. long; flagellum with 23 to 27 

 segments (but with 21 segments in a dwarf specimen); head strongly 

 depressed, about 0.73 as high as long; temple long, not bulged, weakly 

 rounded; punctures on temple very coarse and close, many of them 

 more or less confluent in irregular rows between which are rounded 

 rugae; punctures on vertex coarse, some adjacent or confluent and 

 others distant from each other; notaulus foveolate; propodeal areola 

 with strong bounding carinae; lateral propodeal areas strongly rugose; 

 first abdominal tergite with a weak median longitudinal depression, 

 with strong longitudinal striae and scattered, indistinct punctures, the 

 sculpture weak in the median depression; second tergite with fine but 

 strong longitudinal to oblique striae on its basal 0.2 to 0.7, the rest 

 smooth; third and fourth tergites smooth and polished or the third 

 tergite sometimes with faint, fine transverse striae; ovipositor sheath 

 about 1.7 as long as front wing. 



Black. Palpi fulvous to brown; tegula dusky ferruginous; legs 

 ferruginous, the front coxa often more or less infuscate; abdomen 

 ferruginous, its first segment usually more or less infuscate or blackish 

 and its second and following segments sometimes more or less in- 

 fuscate; ovipositor sheath fulvous, its apical expanded part brownish 

 fulvous; wings weakly infuscate. 



Specimens (133 d 1 , 209): From British Columbia (Fernie and 

 Vancouver Island) ; California (Bridge Creek Camp in Lassen Co., 

 Camino, Cisco, Coffee Creek in Trinity Co., Dardanelle, Donner 

 Pass, Echo Lake, Fawn Lodge in Trinity Co., near Glacier Point in 

 Yosemite Park, Hackamore in Modoc Co., Hope Valley in Alpine 

 Co., Independence Lake in Sierra Co., Lake Tahoe, Leevining, 

 Mineralking, Old Station, Pollock Pines in El Dorado Co., Sagehen 

 near Hobart Mills, Snow Flat in Yosemite Park, and Truckee) ; and 

 Oregon ("Boyer" and Independence). 



Dates of collection are rather evenly distributed from May 28 to 

 August 16. 



We collected a large number of the species near Glacier Point in 

 Yosemite Park, around fallen trunks of Pinus contorta which had 

 partially lost their bark. They had been killed by Dendroctonus. 



This species occurs from British Columbia southward into the 

 central part of the Sierra Nevada of California. It is mostly in the 

 Canadian zone. 



