36 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iia 



Food plant: Chrysothamnus nauseosus (Pallas) Britten. 

 Type: Male, Sonora Pass, Tuolumne Co., Calif., Aug. 21, 1959, 

 J. PoweU, CAS. 

 Paratypes: 



California: 9mi. S Bridgeport, Mono Co., 4 $ , Sept. 10, 1959, J. A. Chemsak, 

 UCB; Monachee Meadows, 8000 ft., Tulare Co., 1 ? , Aug. 8-15, USNM; Nevada 

 Co., 1 9 , Sept., G. Willett, LACM; Ravendale, Lassen Co., 2 cf , 3 ? , Sept. 7, 1957, 

 Chrysothamnus nauseosus speciosus, B. J. Adelson, UCB; same data as type, 

 4cf, 1 ? (RWH slide 2638), UCB, USNM; same locality as type, 1 9 , Aug. 15, 

 1959, G. I. Stage (RWH slide 2639), USNM; 1 mi. W Tom's Place, Mono Co., 

 Icf, Aug. 13, 1957, J. Powell, Chrysothamnus nauseosus consimilis, UCB; Upper 

 Santa Ana R., San Bernardino Co., 1 d^, Sept. 22, 1947, Sperry, USNM; Westgard 

 Pass, Inyo Co., 1 cf , 49, Sept. 14, 15, 1938, G. Willett, LACM. Colorado: 

 Durango, 3 cf Sept. 26, 1945, E. C. Johnston, CNC; Glenwood Springs, 1 d^, 

 August 1899, MCZ; Lamar, Id", Sept. 24, 1945, E. C. Johnston, CNC, USNM. 

 New Mexico: Embido, Icf, Sept. 26, Cockerell, USNM. Nevada: Montgomery 

 Pass, Mineral Co., 3 cf , 3 9 , Sept. 16, 1939, Geo. Willett, LACM; Mt. Magruder, 

 Esmeralda Co., 3 9, Sept. 19, 1939, Geo. Willett, LACM, USNM. Utah: 

 Stockton, Icf, Sept. 5, 1904, T. Spalding, CU. Washington: Dry Falls, Icf, 

 Sept. 11, 1945, E. C. Johnston, CNC. 



Other specimens examined: 



California: Rock Cr., 1 mi. W Tom's Place, Mono Co., 2 9 , Sept. 6, 1960, 

 C. D. MacNeill, CAS; Sonora Pass, Tuolumne Co., Id", Aug. 21, 1959, C. W. 

 O'Brien, CAS. 



Discussion : L. nefrens is a striate-winged species with fron to vertical 

 processes. It may be separated from jubata by the circular cross 

 section of the dorsal process, that of jubata has a linear cross section. 



The color description of nejrons was taken from the type. Some 

 specimens are lighter in hue. 



Lita invariabilis (Kearfott) 



Figures 35, 59, 79, 134, 209, 210 



Gelechia invariabilis Kearfott, 1908, Journ. New York Ent. Soc, vol. 16, p. 184. 

 Lita invariabilis. — Busck, 1939, Proc. U.S. Nat. Mus., vol. 86, p. 573. 



Maculation: as in figure 35. Head: tongue pale gray basally, 

 slightly darker distally; maxillary palpus pale gray, folded over base 

 of tongue; first segment of labial palpus nearly white, outer surface 

 tinged with yellow, second segment pale gray dusted with bro^vn, third 

 segment brown dusted with pale gray; scape of antenna pale gray 

 basally becoming light piceous distally, shaft piceous on dorsal surface, 

 ocherous on ventral surface of basal half, piceous on distal half; frons 

 pale buft'; vertex and occiput with buff brown-tipped scales medially. 

 Thorax: tawny with scattered p ale buff and brown scales. Forewing: costal 

 margin brown intermixed with buff from base to two-thirds length of 

 wing; a broad pale buff band from near base to three-fourths length 



