NO. 3547 NEARCTIC GELECHIIDAE — ^HODGES 29 



tered pale brown scales; scape of antenna white to buff white with 

 pale brown dusting dorsally; shaft greasy pale orange basally becoming 

 orange brown distally (cf ), shaft blotchy greasy brown dorsally, buff 

 ventrally ( 9 ) ; frons off white; vertex and occiput pale buff. Thorax; 

 mainly buff, some scales streaked with brown and a few brown scales 

 streaked with buff. Forewing: off white, pale buff, pale yellow, and 

 brown; ridges of many scales white or off white; cilia pale to dark 

 buff, scale apices of basal row brown. Hiudwing: pale fuscous, veins 

 and costal margin shining pale orange; cilia buff. Pro thoracic leg: 

 outer surface white, anteromedial surface a mixture of gray brown 

 and white; femur and tibia pale brown mixed with white, apex and 

 epiphysis of tibia white; tarsus pale brown, base of first segment and 

 apices of first and second segments white. Meso thoracic leg: coxa 

 white; femur appearing gray on outer surface; tibia pale brown, a 

 white streak at middle, apex white; tarsus gray brown, apices of seg- 

 ments and base of first segment pale gray to white. Metathoracic 

 leg: coxa, femur, and tibia white, tibia with a few brown scales; 

 tarsus off white with scattered brown scales. Alar expanse: 19.0- 

 20.5 mm. Male genitaha: as in figure 74 (RWH sHde 2578). Female 

 genitalia: as in figure 150 (RWH slide 2582). 



Food plant: Chrysothamnus nauseosus (Pallas) Britten. 



Type: Male, Eureka, Utah, August 16, 1911, Tom Spalding, USNM 

 type 67650. 



Paratypes : 



California: Nevada Co., 1 9 , September, CAS; near Sonora Peak, Tuolumne 

 Co., 11000 ft., Id', Aug. 6, 1959, C. D. MacNeill, CAS; 1 mi. W Tom's Place, 

 Mono Co., 1 9 , Aug. 13, 1957, ex Chrysothamnus nauseosus consimilis, J. Powell 

 (RWH slide 2582), UCB. Colorado: Glenwood Springs, 2cf, August 1892, 

 W. Barnes (AB slide Aug. 14, 1933; RWH slide 3249); same locality, Ic?, 

 August 1889, MCZ; no further locality, Icf, AMNH. Utah: same locality as 

 type, 20 d', 119, Aug. 16-Sept. 9, 1911 (RWH slides 2577-2580 and 2594), CAS, 

 USNM; Stockton, Id^, Sept. 6, 1907, USNM. 



Discussion: The faint oblique line from the costa at the base of 

 the forewing to the middle of the forewing at one-fifth will separate 

 nonstriate specimens of thaliae from pagella, harnesiella, and texanella. 

 Superficially, striate specimens of thaliae are similar to some specimens 

 of incicur, variabilis, and rectistrigella. By lacking fro n to vertical 

 processes thaliae differs from incicur, and in the shape of the aedeagus 

 {rectistrigella type) it differs from variabilis. L. thaliae differs from 

 most known males of rectistrigella by having narrow sensory areas on 

 the basal segments of the antenna. The basal extension of the 

 aedeagus differs from that of rectistrigella by being more heavily 

 sclerotized. Females of thaliae have the heavy setae at the base of 

 the papillae anales numerous and in several rows; females of recti- 



