pepsinae: tribe pepsini 71 



Oroville, Patterson, Pinoche in Fresno County, Placerville, Priest 

 Valley at 2,300 ft. in Monterey County, Quincy, Redwood City, 

 Redwood Creek, Richardson Springs, San Mateo County, San Fran- 

 cisco County, Santa Barbara, Santa Paula, Stanford University, 

 Tracy, Wood Lake in Tulare County, and Ventura) ; Nevada (Reno) ; 

 Oregon (Corvallis, Dufur, La Grande, Lane Benton Park 20 miles 

 south of Corvallis, Malheui* County, Pee Dee, and Yoncalla) ; and 

 Utah (Fair West, Salt Lake, and Tooele). 



Collection dates are mostly in June, July, August, and September. 

 Dates outside of these four months are: Apr. 15 at Ventura, Calif.; 

 May 7 at San Andreas Lake, San Mateo County, Calif.; May 10 at 

 Clayton, Calif.; May 15 at Pinoche, Fresno Count}^, Calif.; May 19 

 at Richardson Springs, Calif.; May 20 at Felton, Calif.; May 26 at 

 Wood Lake, Tulare County, Calif.; Oct. 2 at Concord, Calif.; Oct. 

 13 at Antioch, Calif.; Oct. 15 at Telsa, Alameda County, Cahf.; and 

 October at Green Valley, Solano County, Calif. Flower records 

 comprise Cleome serrulata and Baccharis. 



This species has been collected commonly in CaUfornia and Oregon 

 and sparingly in Nevada and Utah. Adults are on the wing during 

 the warmer part of the season. 



2. Cryptocheilus terminatum (Say) 



Male: Forewing 6 to 8.5 mm. long; front view of clypeus with 

 the apex wealdy arcuately concave; median notch of sixth sternite 

 deeply V-shaped with the bottom sharp; subgenital plate tongue- 

 shaped, with a weak median longitudinal rounded ridge that is 

 stronger basally and gradually weaker to the apex, the longitudinal 

 ridge without a crest of hairs; margin of subgenital plate with a fringe 

 of short straight and longer curved black hairs. Coloration as in 

 the female. 



Female: Forewing 7.5 to 10 mm. long; clypeus in side view rather 

 strongly convex, in front view with the apex strongly and broadly 

 arcuately concave; mandible (when not eroded) about 0.80 as long as 

 the clypeus is wide, its apical tooth moderately broad; propodeum 

 without distinct Avrinkles. 



Black. Body pubescence blackish; wings either entirely blackish 

 or largely orange-yellow, according to the subspecies. 



There are two subspecies, differing only in wing color. It may be 

 presumptuous to consider two forms subspecies without evidence of 

 intergrades where their ranges approach, but with their ranges adja- 

 cent and only one character distinguishing the two populations, it 

 seems reasonable to suppose that intergrades or other evidence of 

 natural interbreeding will eventually come to view. An exactly 

 similar situation occurs between the two forms here considered sub- 

 species of Cryptocheilus idoneum. 



