204 PROCEEDINGS OF THE NATIONAL MUSEUM voi,. 90 



United States records 



Arizona: Baboquivari Mountains, Pima County, 3 $ $ (15-30 July 1924, O. C. 



Poling) ; Huachuca Mountains, S $ S ; Palmerlee, Cochise County, 5 $ $ , 



2 9 9; Redington, 2 $ $. 

 Texas: No further data. 



Remarks. — The description of diligenda agrees in every detail with 

 the type of huacliuceTla so there appears to be no doubt about the 

 synonymy. 



9. Genus PSILOCORSIS Clemens 



Plate 3, Figure 24 ; Plate 5, Figure 38 ; Plate 8, Figures 59, 59a ; Plate 17, 



Figure 105 



Psilocorsis Clemens, Proc. Acad. Nat. Sci. Philadelphia, vol. 12, p. 212, 1860; 

 in Stainton, Tineina of North America, p. 149-151, 1872. — Zeller, Verh. 

 zool.-bot. Ges. Wien, vol. 23, p. 239, 1873.— Busck, Proc. Ent. Soc. Washington, 

 vol. 5, p. 207, 1903 ; Proc. U. S. Nat. Mus., vol. 35, p. 196, 1908.— Walsingham, 

 Biol. Centr.-Amer., Lepidoptera-Heterocera, vol. 4, p. 118-119, 1912. — Barnes 

 and McDuNNouQH, Check list of the Lepidoptera of Boreal America, p. 160, 

 1917.— Forbes, Cornell Univ. Agr. Exp. Stat. Memoir 68, p. 235-236, 1923.— 

 Brimlet, The insects of North Carolina, p. 304, 1938. (Genotype: 

 Psilocorsis quercicella Clemens, Proc. Acad. Nat. Sci. Philadelphia, vol. 12, 

 p. 212, 1860.) 



Eagno Chambers, Can. Ent., vol. 4, p. 129-132, 191, 1872 ; Journ. Cincinnati Soc. 

 Nat. Hist., vol. 2, p. 198, 1880. (Genotype: Eagno faginella Chambers, Can, 

 Ent.vol. 4,p. 131, 1872.) 



Labial palpus long, slender, smooth, always with conspicuous longi- 

 tudinal stripes; terminal segment scarcely shorter than second. An- 

 tenna simple, without pecten on basal segment ; tongue well developed. 



Fore wing with costa arched, termen slightly oblique, straight; 12 

 veins ; 2 from near angle, 3-5 approximate, 5 and 6 parallel, 7 and 8 

 stalked, 7 to apex, 11 from before middle of cell. 



Hind wing as broad as fore wing ; apex rounded, termen oblique ; 8 

 veins; 3 and 4 connate or short stalked, 5 equidistant from 4 and 6; 

 6 and 7 nearly parallel, slightly divergent at tip. 



Male genitalia. — Harpe long, narrow, without clasper, moderately 

 clothed with hairs. Anellus membranous, with long, fingerlike lateral 

 lobes. Aedeagus stout ; vesica armed with one or more strong cornuti. 

 Gnathos large, broad, spined. Uncus simple. Socii absent. 



Female genitalia. — Signum large, many branched. Bursa copula- 

 trix double. 



Larva. — Ninth abdominal segment with setae I and II well separated. 

 Seta VI closely associated and on the same pinaculum with setae 

 IV and V. Setal group VII (as in Agonopterix) bisetose on first and 

 seventh, unisetose on eighth and ninth abdominal segments. Ocelli 

 normal. Submentum without pit. 



