NORTH AMERICAN STENOMIDAE — DUCKWORTH 49 



Alar expanse 15 mm. 



Color: Face and palpus white flecked with brown scales, palpus 

 brown at tip. Legs white flecked with brown scales, tarsi ringed 

 with brown. Thorax white flecked with brown scales. Abdomen 

 with mixed brown and white scales. Forewing white with two trans- 

 verse brown bands converging at anal angle forming V-shaped mark 

 on basal third, middle third with indistinct brown shading blending 

 into indistinct brown streaks in apical third that follow lines of veins 

 beyond cell to termen and costa; with row of five or six indistinct 

 brownish dots along termen reaching to apex; cilia brown tipped in 

 white. Hindwing light brown; cilia lighter, with light greyish-fuscous 

 line along margin at base and two parallel shades running through it. 



Male genitalia: Uncus very small bearing several small setae at 

 apex; gnathos with two small processes beneath uncus; harpes with 

 large lobe basally, median forked structure, and somewhat pointed 

 apical lobe bearing short, bifurcate setae; vinculum complete; anellus 

 with two large, pointed processes surrounding and extending above 

 aedeagus; aedeagus short, pointed laterally; cornuti a small cluster of 

 heavy spines. 



Female genitalia : Genital plate reduced to simple band surrounding 

 ostium; ostium bursae and ductus bursae membranous; corpus 

 bursae large; membranous, with two dentate, lightly sclerotized signa. 



Type: In the British Museum (Natural History). 



Type locality: Fort Grant, Arizona. 



Food plant: The type series was reared from a cynipid gall on 

 Quercus sp. 



Distribution: Arizona: Fort Grant (April); Baboquivari Mts. 

 (Oct.); Madera Canyon, Santa Rita Mts. (July, Aug., Sept., Oct.). 

 caldfornia: San Bernardino Co. (June). 



Genus Menesta Clemens 



Menesta Clemens, 1860, Proc. Acad. Nat. Sci. Philadelphia, vol. 12, p. 213. 

 1. Menesta tortriciformella Clemens 



Figures 23, 44; Plate 4d; Map 12 



Menesta tortriciformella Clemens, 1860, Proc. Acad. Nat. Sci. Philadelphia, 

 vol. 12, p. 213; 1872, The Tineina of North America, p. 151. — Chambers, 

 1878, Bull. U.S. Geol. Surv., vol. 4, p. 157.— Walsingham, 1881, Proc. Zool. 

 Soc. Loudon, p. 319; 1889, Insect Life, vol. 2, p. 154.— Busck, 1903b, Proc. 

 U.S. Nat. Mus., vol. 25, p. 903; 1934, in Lepidopterorum catalogus, vol. 

 67, p. 5. 



Gelechia liturella Walker, 1864, List of the specimens of lepidopterous insects in 

 the collection of the British Museum, vol. 29, p. 591. 



Hyale coryliella Chambers, 1875, Cincinnati Quart. Journ. Sci., vol. 2, p. 242. 



Strobisia albaciliaeella Chambers, 1878, Canadian Ent., vol. 10, p. 77. (New- 

 synonymy.) 



