ICHNEUMON-FLIES — GELINAE : MESOSTENINI 241 



at 3,750 ft., and 9 miles east of Imnaha); Saskatchewan (Big Muddy 

 and Saskatoon); Utah (Bryce Canyon National Park at 7,000 ft., 

 and Salt Lake City); Washington (Clarkston and Pullman); and 

 Wyoming (Horse Creek Ranger Station northwest of Cheyenne, 

 Lusk, Manville, and Uinta Co.). 



Collection dates are from mid-spring to late summer, with a peak 

 of abundance in June and July. The records before June and after 

 August are: April 15 at Salt Lake City, Utah; May 11 at Red House 

 Ranch, Eureka Co., Nev.; May 20 at Taber, Alta.; September 6 

 at Sublett, Idaho; and November 10 at Boise, Idaho. 



Judging from a single series that we took and the data on other 

 specimens, the usual habitat is in weedy areas. 



This species ranges from Saskatchewan and Alberta south to 

 northern New Mexico, in the Transition zone. 



30. Trachysphyrus scapulatus, new species 



Front vv'ing 7.0 to 7.8 mm. long; general structure about as in 

 T. alhitarsis, differing as follows: Sculpture of head, thorax, and 

 coxae distinctly stronger and denser than in alhitarsis; face about 

 1.68 as wide as high (wider than in alhitarsis); apical carina of pro- 

 podeum well separated from basal carina (a little more separated than 

 in T. persimilis), its sublateral crest low and broad; second recm-rent 

 vein weakly sinuate. 



Male: Black. Face and clypeus white, the clypeus black margin- 

 ally, the face next to clypeus black, and usually a broad sublateral 

 black stripe on each side of face ; frontal orbit and most of hind orbit 

 narrowly pale j'cllow; mouth parts pale yellow, the palpi stramineous 

 apicaUy; lower corner of propleurum, upper and lower margins of 

 pronotum, tegula, subtegular ridge, sometimes spot on scutellum, 

 upper corner of mesepimeron, usually small spot on mesopleurum 

 at base of middle coxa, usually small spot on propodeal crest, and 

 under part of front and middle coxae and first trochanters, j^ellowish 

 white; front and middle legs be3"ond fu'st trochanters fulvous, the 

 second trochanters bro^vai above and the fifth tarsal segments light 

 browm; hind trochanters fulvous and fuscous; hind femur fulvous, its 

 apex narrowly infuscate and its extreme base a little infuscate; hind 

 tibia dark brown; hind tarsus brown, the apical 0.3 it of its first 

 segment and all of segments 2-4 ivory; wings hyaline; abdomen 

 ulvoferruginous, the clasper and sometimes apex of seventh tergite 

 uscous. 



Female: Black. Orbit (narrowest on upper part of temple and 

 widest on face), center of face, clypeus except its dorsolateral edge, 

 cheek, mandible, and thoracic markings as described for male, pale 

 yellow; scape fulvous, fuscous above; palpi dark brown; scutellum 



