200 U. S. NATIONAL MUSEUM BULLETIN 2 1 6 part 3 



9. Trachysphyrus serraticaudus (Pratt) 



Figures 328,n; 376 



Cryptus serraticaudus Pratt, 1945, Amer. Midi. Nat., vol. 34, p. 594; cf, ? . Type: 

 9, Siskiyou Pass, Jackson Co., Oreg., 4,500 ft. (Washington). 



Front wing 9.5 to 13.5 mm. long; head rather wide; clypeus rather 

 strongly convex; fi-ons with a shallow depression dorsolaterad of each 

 antennal socket; front tarsus of female about 1.2 as wide as its tibia, 

 as in figure 376 ; ovipositor sheath longer than in other Nearctic species, 

 about 0.82 as long as front wing; ovipositor weakly upcurved, its lower 

 valve with strong sharp teeth that extend about 0.35 of the distance 

 from its apex to base of ovipositor sheath, as in figure 328,n. 



Male: Body and legs ferruginous, more or less of head and thorax 

 black, but mesoscutum always mostly ferruginous ; coxae more or less 

 fuscous at base and above; hind trochanters more or less infuscate; 

 hind tibia fuscous, ferruginous basally; segment 1 of hind tarsus 

 mostly brown, fulvous apically; segments 2-4 of hind tarsus yellowish; 

 segment 5 of hind tarsus fulvous; wings dark brown. 



Female: Head, body, and legs fulvoferruginous, the thorax with 

 some narrow sutural marldngs black, apex of hind tibia darkened, and 

 segments 2-4 of hind tarsus light fulvous; wings dark brown. 



Specimens (11 cT, 159): From British Columbia (Keremeos, Nicola 

 at 2,200 ft., and Vernon); California (Big Flat on Coffee Creek in 

 Trinity Co., Coalinga and 12 miles west of Coalinga, Dutch Flat, Has- 

 tings Natm-al History Reservation in Santa Lucia Mts. near Jamesburg 

 at 1,900 to 2,700 ft., Meadow Valley at 3,500 to 4,000 ft., and 4 miles 

 west of Quincy); Colorado (Plainview at 7,000 to 8,000 ft.); Idaho (13 

 miles northeast of Franklin and Pine Spring in Minidoka [—Sawtooth] 

 National Forest in Oneida Co.); Oregon (Jackson Co. near Copco 

 [Calif.], Olene, and Siskiyou Pass in Jackson Co. at 4,500 ft.); Utah 

 (Cache Junction and Park City) ; and Washington (Touchet) . 



Collection dates are mostly from May 30 to Jul}^ 7. Those outside 

 of this range are : April 8 twelve miles west of Coalinga, Calif. ; April 

 26 at Coalinga, Calif.; May 29 at Dutch Flat, Calif.; July 9 to 14 at 

 Plainview, 7,000 to 8,000 ft., Colo.; and July 13 at Keremeos, B.C., 

 and at 13 miles northeast of Franldin, Idaho. 



This species ranges from southern British Columbia to central 

 California, eastward to central Colorado. Most of the localities in 

 which it has been collected are in the Upper Sonoran fauna. 



10. Trachysphyrus calescens (Gravenhorst) 



Figures 328,o; 377 



Front wing 8.0 to 13.0 mm. long; head with long, suberect, brown 

 hairs; cheek about 0.9 as long as basal width of mandible in male, 

 about 1.25 as long in female; clypeus rather narrow, rather weakly 



