34 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119 



most specimens the remainder of the forewing is pale and thus contrasts 

 sharply with the black dash. 



Color variation occm's in princeps to the extent of a general darken- 

 ing of all areas. The color description given above was made from a 

 relatively light colored specimen. In some specimens the longitudinal 

 streak on the forewing is divided into its two component parts; 

 however, I have seen no specimens in which the faint longitudinal 

 streaking, typical of variabilis, is present. 



Lita juhata, new species 



Figures 32, 63, 64, 77, 141, 205, 206 



Maculation: as in figure 32. Head: tongue whitish basally; maxil- 

 lary palpus buff white, folded over base of tongue; labial palpus 

 whitish, first segment with pale brown scales basally, second segment 

 with brown scales on anterior, medial, and lateral surfaces, third 

 segment solid white on anterior edge, with brown scales elsewhere; 

 antenna cinereous brown, scape and apical half of shaft darker than 

 base of shaft; lower portion of frons pale buff; vertex buff brown; 

 occiput paler than vertex; frontovertical processes as in figures 63 

 and 64. Thorax and forewing pale buff; dai'ker markings of forewing 

 brown and black; cilia pale, scale apices slightly darker. Hindwing: 

 fuscous, cilia fuscous yellow. Legs: buff white overlaid with brown 

 basally, darker distally, apices of tibiae and first through third or 

 fourth tarsal segments pale. Abdomen: first three terga cinereous 

 yellow, caudal ones greasy pale brown, sterna greasy brown with 

 pale buff apices. Alar expanse: 16-20 mm. Male genitalia: as in 

 figure 77 (JFGC slide 9903). Female genitalia: as in figure 141 

 (JFGC slide 9905). 



Food plant: Chrysothamnus viscidiflorus Nuttall and C. nauseosus 

 (Pallas) Britten. Specimens were reared from the flowers. 



Type: Male, Satus Creek, Yakima Co., Washington, Sept. 19, 

 1949, E. C. Johnston, CNC. 



Paratypes : 



California: 9 mi. S Bridgeport, Mono Co., 3 9 , Sept. 10, 1957, ex flowers 

 Chrysothamnus, J. A. Chemsak, UCB, USNM; 1 mi. S Hobart Mills, 1 ? , Sept. 1, 

 1957, Chrysothamnus viscidiflorus typicus, J. M. Linsley, UCB; Nevada Co., 2?, 

 September (JFGC slide 9905), USNM; Sagehen near Hobart Mills, 1 9 , Sept. 5, 

 1957, B. J. Adelson, UCB; Sheep Rock, Siskiyou Co., 1 c?, Sept. 3, 1871, Wal- 

 singham, BMNH; 3 mi. N Termo, Lassen Co., 1 9 , Sept. 7, 1957, Chrysothamnus 

 nauseosus speciosus, J. A. Chemsak, UCB; Twin Lakes, Alpine Co., Icf, Aug. 21, 

 1936, E. C. Johnston (JFGC slide 4079), USNM. Colorado: Denver, 19, 

 Oslar, LACM; Glenwood Springs, 6 cT, August and September (JFGC slide 9902), 

 MCZ, USNM; Rock Creek vie. Colorado Springs, 1 cT, Aug. 25, 1935, Klots, 

 AMNH; Salida, 3c?, Aug. 26, 27, 1938, Sperry, AMNH, USNM; South Park, 



