36 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lie 



in the male genitalia and in the location of the genital opening at the 

 anterior edge of the genital plate in the female. 



7. Antaeotricha furcata (Walsingham) 



Figures 7, 28; Plate 2a; Map 4 

 Stenoma furcata Walsingham, 1889, Insect Life, vol. 2, p. 153. — Barnes and 



Busck, 1920, Contrib. Nat. Hist. Lep. North America, vol. 4, p. 238. 

 Antaeotricha furcata Busck, 1934, in Lepidopterorum catalogus, vol. 67, p. 23. 



Alar expanse 27-30 mm. 



Color: Face and palpus white. Legs whitish, unspotted. Thorax 

 whitish slightly sprinkled with dusky scales dorsally, without tuft of 

 dark scales posteriorly. Abdomen cinereous. Forewing white; 

 patch of dark, raised scales at base of posterior edge as in A. schlaegeri; 

 with brownish-grey scales extending from this to anal angle behind 

 discal cell; with faint greyish clouds and spots at apex of cell and 

 brownish-grey transverse line between this and apical margin. Hind- 

 wing dark cinereous in male; pale greyish ochreous in female. Cilia 

 white, shaded with grey at tip ; few divided black scales present. 



Male genitalia: Uncus curved, widened, and distinctly notched at 

 tip; gnathos somewhat reduced in size, notched at tip; harpes as in 

 A. schlaegeri; anellus with four lobes, ventral ones small with pointed 

 apex bearing several setae, dorsal ones larger, truncate, bearing 

 several setae at apex; aedeagus long, a long recurved process near apex, 

 apex pointed; cornuti a large cluster of very small spines. 



Female genitalia: Genital plate large, lamella antevaginalis 

 moderately large and liplike, lamella postvaginalis with two lateral de- 

 pressions and median elevated area; ostium bursae large; ductus bur- 

 sae short, membranous ; corpus bursae with toothed signum ; inception 

 of ductus seminalis near ostium. 



Type: In the British Museum (Natural History). 



Type locality: Arizona. 



Food plant: Unknown. 



Distribution: Arizona: Paradise, Cochise Co. (May, June); Ma- 

 dera Canyon, Santa Rita Mts. (Aug., Sept., Oct.); Morrison; Nogales 

 (May). NEW MEXICO: Ruidosa Canyon (July). 



This species is similar to A. schlaegeri and A. lindseyi in color, but 

 the distinctive aedeagus and notched uncus serve to separate the 

 males, while the characteristic genital plate and the short, thick ductus 

 bursae separate the females. 



8. Antaeotricha Irene (Barnes and Busck) 



Figures 8, 8a, 29; Plate 2b; Map 5 

 Stenoma irene Barnes and Busck, 1920, Contrib. Nat. Hist. Lep. North America, 



vol. 4, p. 239. 

 Antaeotricha irene Busck, 1934, in Lepidopterorum catalogus, vol. 67, p. 24. 



Alar expanse 19-20 mm. 



