26 PROCEEDESTGS OF THE NATIONAL MUSEUM vol. ug 



Mr. Andre Pizziui for the distribution maps and Mr. Jack Scott for 

 the photographic work. 



Family Stenomidae Meyrick 



Stenomidae Meyrick (in part), 1906, Trans. Roy. Soc. South Australia, vol. 30, 

 p. 50; 1909, Trans. Ent. Soc. London, p. 28; 1912, Trans. Ent. Soc. Loudon, 

 p. 706; 1931, Anal. Mus. Nac. Hist. Nat. Buenos Aires, vol. 36, p. 378.— 

 Walsingham, 1912, Lepidoptera-Heterocera, vol. 4 (vol. 42 in Godman and 

 Salvin, Biologia Centrali- Americana), pp. 153-187; 1913, Lepidoptera- 

 Heterocera, vol. 4 (vol. 42 in Godman and Salvin, Biologia Centrali-Ameri- 

 cana), pp. 188-190. — Barnes and Busck, 1920, Contrib. Nat. Hist. Lepidop. 

 North America, vol. 4, p. 236. 



Stenomatidae Walsingham, 1907, Proc. U.S. Nat. Mus., voL 33, p. 214. 



Cryptolechiidae Meyrick (in part), 1883, Trans. Ent. Soc. London, p. 124. 



Xyloryctidae Meyrick (in part), 1925-1934, Exotic Microlepidoptera, vols. 1-4. 

 — Forbes, 1923, Cornell Agric. Exp. Sta. Mem., vol. 68, p. 250. 



Cryptophasidae Fletcher (in part), 1929, Mem. Dept. Agric. India, Ent. Ser., 

 vol. 11, pp. 1-244. 



Stenomides Meyrick, 1930, Ann. Naturhist. Mus. Wien, vol. 44, p. 233. 



Stenominae Janse, 1932, The moths of South Africa, vol. 1, p. 61. 



Type genus. — Stenoma Zeller. 



Male antenna heavily ciliated ventrally, female with shght or no 

 cihation, basal segment without pecten; labial palpus compressed, 

 curved gradually dorsad and extending above crown of head. Fore- 

 wing with 12 veins (or 11 by fusion of veins 2 and 3) ; vein lb furcate 

 at base; vein 7 separate to termen, apex or costa; veins 2-3 and 4 

 separate, connate, or stalked; veins 2 and 3 fused, stalked, or separate. 

 Fore wing typically much more than twice as long as wide; shorter in 

 Menesta and Setiostoma. Hindwing with veins 6 and 7 stalked ; 3 and 

 4 connate, stalked, or fused; vein 5 close to, connate, or fused with 4; 

 typically very broad with rounded termen. 



Male genitalia: Symmetrical; harpes simple or divided into lobes, 

 bearing bifm'cate setae that may be long and straight, long and re- 

 curved, or short; socii and transtHla absent; aneUus a simple plate or 

 with moderately or weU-developed lateral processes. Vinculum band- 

 Uke, complete or incomplete. Gnathos present; uncus present, well 

 developed or reduced. 



Female genitalia: Genital plate variously sclerotized or membra- 

 nous; corpus bursae mth or without signum. 



Key to Species of North American Stenomidae Based on Genitalia 



1. Male 2 



Female 24 



2. Harpes with thumblike projection on costa bearing long, recurved, bifurcate 



setae (Genus Antaeotricha Zeller) 3 



Harpes without such a projection 17 



