202 U. S. NATIONAL MUSEUM BULLETIN 216 



except where described as yellow; hind tibia fulvous, pale yellow on 

 its basal 0.2 and infuscate apically and just beyond the basal yellow 

 part; tibial spurs whitish; first two segments of hind tarsus whitish, 

 brown at apex; third to fifth segments of hind tarsus brown, the base 

 of the third segment paler. 



Type: 9, Phantom Valley at 9,400 ft., Rocky Mountain National 

 Park, Colo., Aug. 10, 1948, H., M., D., and J. Townes (Washington, 

 USNM 63651). 



15. Exochus ochreatus, new species 



Figure 192,f 



Male: Front wing 3.3 to 3.8 mm. long; costula absent; second lateral 

 area of propodeum with hairs on its lateral 0.35, the rest bare or with 

 a few scattered hairs; median longitudinal carinae of propodeum 

 subparallel; front spur of middle tibia about 0.46 as long as the hind 

 spur; punctures on second abdominal tergite evenly distributed, 

 moderately dense. 



Black. Face, side of frons in its lower 0.7, large spot at top of eye, 

 cheek, lower 0.3 ± of temple, clypeus, mouth parts, scape except 

 above, large cuneate mark along upper margin of pronotum, tegula, 

 subtegular ridge, sometimes extreme apex of scutellum, usually lower 

 corner of pronotum, lower 0.4 of propleurum, and front and middle 

 legs pale yellow, the front and middle tarsi pale brown apically; hind 

 coxa pale yellow, fulvous basally and blackish above; hind trochanters 

 pale yellow, tinged with fulvous; hind femur light fulvous, brownish 

 above and at apex; hind tibia whitish, infuscate apically, fulvous 

 below and laterally except towards its base, and with a faint fuscous 

 ring at its basal 0.25; hind tibial spurs and hind tarsus pale stramineous, 

 the first three tarsal segments light brown apically and the last two 

 segments entirely light brown. 



Type: cf, near Alpine, Ariz., May 26, 1947, H. and M. Townes 

 (Washington, USNM 63652). 



i Paratypes: 9 c? 1 , near Alpine, Ariz., May 24, 26, and 27, 1947, H. 

 and M. Townes (Townes). 



16. Exochus spinalis, new species 



Figure 192,g 



Male: Unknown. 



Female: Front wing 3.4 to 3.6 mm. long; costula absent; second 

 lateral area of propodeum with hairs all over; median longitudinal 

 carinae of propodeum rather weakly convergent basally; front spur 

 of middle tibia 0.42 as long as hind spur; punctures on second ab- 

 dominal tergite moderately dense, sparser on the median triangular 

 pale area. 



