28 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119 



medial and distal rows tipped with pale brown. Hindwing: fuscous 

 with numerous orange scales, ciUa buff, apices of scales slightly darker. 

 Prothoracic leg: coxa, femur, and tibia dark brown, scales pale basally, 

 outer surface of coxa gray brown; tarsus yellow brown, apices of first 

 and second and base of first segment white. Mesothoracic leg: coxa 

 buff white; femur, tibia, and tarsus brown, a dorsal white streak at 

 middle of tibia, apex of tibia white, base of basitarsus white, apices 

 of tarsal segments slightly paler than remainder of segments. Meta- 

 thoracic leg: coxa and femur buff white, many scales of femur streaked 

 with brown; tibia buff white, apices of many scales pale brown to 

 brown, dorsal tuft pale buff, apex white; tarsus pale brown, base of 

 first segment white, apices of segments buff white. Alar expanse: 

 14-17 mm. Male genitaha: as in figure 73 (RWH sHde 2630). 

 Female genitaha: as in figure 142 (KWH sHde 2631). 



Food plant: Unknown. 



Type: Male, San Diego, Cahf. (RWH shde 2630), USNM type 

 67649. 



Paratypes: 



California: same locality as type, 41 cf, 119, May 1-7 and Oct. 8-30 (RWH 

 slide 2631, JFGC slides 9900 and 9901), BMNH, CNC, CU, and LACM; same 

 locality as type, 5cf, Oct. 1-16, 1920, Karl Coolidge, LACM, USNM; same 

 locality as type, 3 cf , 2 ? , Sept. 21-Nov. 20, 1923, Piazza, LACM, USNM; Desert 

 Springs, San Bernardino Co., 1 ? , October 17, 1960, Hurd and Powell, UCB; 

 Los Angeles Co., 1 9 , September, CAS; Mouth, San Gabriel Canyon, Los Angeles 

 Co., Id^, Nov. 11, 1945, C. Henne, USNM. 



Other specimens examined: 



California: San Diego, Icf, 29, Oct. 8-15, CAS. 



Discussion: L. sironae is nearest to rectistrigella, differing in having 

 a pale yellow to orange-brown subcostal streak on the base of the 

 forewing and in the smaller average size (7.9 mm. for sironae, 9.4 mm. 

 for rectistrigella) . The signa of sironae are from 0.28-0.38 mm. long, 

 and the distance from the outer surface to the apex of the inwardly 

 projecting termen is 0.16-0.22 mm. The same dimensions for rectis- 

 trigella are 0.72-0.78 mm. and 0.28-0.29 mm. In sironae the inwardly 

 projecting termen of the signum is more nearly vertical with the outer 

 margin than is that of rectistrigella. In the latter this projection is not 

 abruptly angled from the outer margin. 



Lita tluiltae, new species 



Figures 26, 27, 74, 150, 197, 198 



Maculation: as in figures 26 and 27. Head: tongue white basally, 

 becoming pale brown medially; maxillary palpus white, folded over 

 base of tongue; fh^st segment of labial palpus pale brown with a 

 dorsobasal white patch; second and third segments white with scat- 



