206 U. S. NATIONAL MUSEUM BULLETIN 216 part 3 



12. Trachysphyrus asymtnetricus (Pratt) 



Figures 329,a; 381 



Front wing 6.0 to 11.0 mm. long; clypeus broad, moderately con- 

 vex; frons with a weak depression or pit dorsolaterad of each antennal 

 socket; temple rather broad and full; lower end of occipital carina 

 usually incomplete and not reaching hypostomal carina; punctures on 

 lower 0.7 of temple of female, and on mesoscutum and mesosternum of 

 female moderately large and very sparse; mesopleurum and meta- 

 pleurum with horizontal or oblique wrinkling, in the male the wrin- 

 kling weak and interspersed with or partly replaced by punctures ; 

 front tarsus of female as in figure 381 ; ovipositor sheath about 0.33 

 as long as front wing; ovipositor tip as in figiu-e 329, a. 



There are two subspecies, separable on color as below: 



1. Mesoscutum entirely black; front and hind orbits with narrow whitish marks; 

 range: Sierra Nevada to Rocky Mountains. 



12a. asymmetricus asymmetricus (Pratt) 

 Mesoscutum and front and hind orbits of female largely or entirely red; 

 range: San Bernardino and San Diego Counties, California. 



12b. asymmetricus mirabilis (Pratt) 



12a. Trachysphyriis asymmetricus asymmetricus (Pratt) 



Cryptus asymmetricus Pratt, 1945, Amer. Midi. Nat., vol. 34, p. 587; cf, 9. 

 Type: 9, French Glen, Steens Mts., Oreg. (Washington). 



Male: Black. Facial orbit, lower 0.6 ± of frontal orbit narrowly, 

 part of hind orbit narrowly, central part of clypeus, median part of 

 mandible, and sometimes dorsocentral spot on face, white; front of 

 second segment of maxillary palpus partly whitish; femora varying 

 from black to fulvous ; front and middle tibiae varying from fuscous to 

 fulvous ; hind tibia varying from black to f uscofulvous ; front and middle 

 tarsi fulvous or somewhat inf uscate ; segments 1 and 2 of hind tarsus 

 fuscous, the second segment often partly light brown ; segments 3 and 

 4 of hind tarsus white or fidvous, and segment 5 pale brown to fuscous ; 

 wings subhyaline to moderately inf uscate; first abdominal segment 

 black, its apical 0.3 ± usually red; abdomen red beyond the fu-st 

 segment. 



Female: Black. Front and hind orbits narrowly stramineous; 

 front and middle legs beyond trochanters and hind femur varying 

 from ferruginous to black; wings black; apical 0.33 ± of first segment 

 of abdomen and all of the following segments, red. 



Specimens (47 cf, 889): From Alberta (Biackfoot Hills, Calgary, 

 Consort, Cypress Hills, and Waterton) ; Arizona (Grand Canyon at 

 7,000 ft. and 20 miles south of Jacob Lake in Coconimo Co.) ; British 

 Cohunbia (Aspen Grove, Chilcotin, Clinton, Douglas Lake, Fort 

 Steele, Kamloops, Keremeos, Lillooet, Midday Valley, Mount Lolo 



