NORTH AMERICAN STENOMIDAE — DUCKWORTH 39 



10. Antaeotricha agrioschista (Meyrick) 



Figures 10, 10a, 34; Plate 2d; Map 5 



Stenoma agrioschista Meyrick, 1927, Exotic Microlepidoptera, vol. 3, p. 365. — 

 Busck, 1934, in Lepidopterorum catalogus, vol. 67, p. 32. 



Antaeotricha agrioschista Clarke, 1955b, Catalogue of the type specimens of 

 Microlepidoptera in the British Museum (Natural History) described by 

 Edward Meyrick, vol. 2, p. 16, pi. 8, figs. 1-lb. 



Alar expanse 20-21 mm. 



Color: Antennae mixed brown and white. Face white, lightly- 

 shaded with brown; palpus white sprinkled with brown, base of 

 second segment and subapical band of apical segment brown. Legs 

 white, shaded with brown, progressively lighter to rear. Thorax and 

 tegula white heavily shaded with brown. Abdomen white shaded 

 with brown. Forewing white overlaid brown, sprinkled with fuscous; 

 short transverse fuscous line from base of costa; three oblique trans- 

 verse fuscous lines from costa, one at basal fourth, one at middle and 

 one at apical fourth; cUia white mixed with brown. Hindwing light 

 brown; cilia whitish with brown subbasal line. 



Male genitalia: Uncus arched, area near middle expanded ventrally 

 and laterally flattened; gnathos broad, rounded at tip; vinculum 

 complete, arched in front, notched at apex of arch; anellus without 

 lateral lobes; aedeagus slender; cornuti a long cluster of heavy spines. 



Female genitalia: Genital plate with excavation on posterior 

 margin. Ostium bursae large, sclerotized; ductus bursae short, 

 membranous; corpus bursae with large sclerotized signum; anterior 

 apophyses short, not fused to genital plate. 



Type: In the British Museum (Natural History). 



Type locaHty: Alpine, Texas, 5000-8000 ft. 



Food plant: Unknown. 



Distribution: texas: Alpine, 5000-8000 ft. (April, May, June). 



This species is nearest A. humilis, as noted by MejTick in the 

 original description. The presence of cornuti in the aedeagus and 

 the notched vinculum in A. agrioschista readily separate the males, 

 while the excavation on the posterior margin of the genital plate 

 separates the females. 



11. Antaeotricha thomasi (Barnes and Busck) 



Figures 12, 32; Plate 2e; Map 6 



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



vol. 4, p. 240. 

 Antaeotricha thornasi Busck, 1934, in Lepidopterorum catalogus, vol. 67, p. 29. 



Alar expanse 21-24 mm. 



Color: Face and palpus creamy white. Legs white sprinkled with 

 dusky scales; tarsal joints dusky. Thorax and abdomen creamy 



