ICHNEUMON-FLIES, PART 2 1 XORIDINAE 515 



Jenny Creek, Mount Hood, "Santiam National Forest," and Waldo); 

 Quebec (Aylmer); and Washington (Easton, Hoquiam, Metaline 

 Falls, Mount Rainier, Northport, Quinault and Sullivan Lake). 



Most collection dates are in June, July, and August. Those outside 

 of these months are: May 11 at Wellington, B. C; May 14 and 25 

 at Robson, B. C; May 29 at Aspen Grove, B. C; September 4 at 

 Robson, B. C; and September 11 at Wallace, Idaho. 



Rearing records comprise 3 rearings from Hylotrupes ligneus, 2 from 

 Melanophila drummondi, 1 from Melanophila 1 ? sp., 1 from a Scolytus 

 in Pseudotsuga taxtfolia, 1 from a cerambycid in Pinus monticola, and 

 1 from a cerambycid in Thuja plicata. There are additional rearings 

 from various trees without a statement of the insect host. These are: 

 4 rearings from Pseudotsuga taxifolia, 3 from Pinus ponderosa, 2 each 

 from Libocedrus decurrens and Tsuga heterophylla, and 1 each from 

 Abies amabilis, A. concolor, Chamaecyparis lawsoniana, Cupressus 

 macrocarpa, Picea engelmanni, P. parryana, P. sitchensis, Pinus 

 edulis, Sequoia sempervirens, and "cedar." 



This species is widely distributed in the Transition and Canadian 

 zones of the western half of the continent and occurs also in Quebec. 

 It parasitizes various borers in conifers. It is adult mostly in June, 

 July, and August. 



IV. ALBOPICTUS GROUP 



Body of average stoutness; occipital carina complete or incomplete 

 medially above; temple conspicuously marked with white, polished, 

 more or less punctate, and in the American species its lower half 

 obliquely striate (fig. 316,f) ; tooth at upper end of epomia moderately 

 strong; areola pentagonal, a little elongate with its basal corner either 

 closed or narrowly open ; median longitudinal carinae close together or 

 briefly fused basad of areola (fig. 315,c) ; tooth at apex of area dentipara 

 acute, rather long; front tibia of female rather strongly swollen; 

 bristlelike hairs on front of front tibia moderately strong, rather 

 numerous (fig. 313,h) ; comb on front of apex of front tibia with rather 

 strong, short bristles ; nervellus broken from a little below middle to a 

 little above middle; first tergite strongly tapered basally, in profile 

 rather strongly arched, its median and sublateral longitudinal carinae 

 rather sharp, complete to the apex; a weak oblique groove on first 

 tergite just beyond its spiracle, extending between the median and 

 sublateral carinae ; second tergite with a strong oblique groove cutting 

 off its basolateral corner, the groove sublaterally curved sharply mesad 

 and continued weakly mesad, fading out before reaching center line. 



This group includes the two Nearctic species below, Xorides centro- 

 maculatus Cushman 1933, from Formosa; Moansa ornatus Tosquinet 

 1903, from Sumatra; Xylonomus vitiosus Turner 1919, from Indo- 



