40 BULLETIIsr 132, UNITED STATES NATIONAL. MUSEUM 



Hind wing with normal pecten; 8 veins; 6 and 7 approximate 

 toward base ; 3 and 4 connate ; inner margine simple in male. 



Hind tibia smooth scaled. 



Male genitalia with a row of long stout, flattened marginal spines 

 at lower outer angle of harpe; cucullus densely spined; basal open- 

 ing greatly enlarged; no appreciable neck incurvation; sacculus 

 reduced, sparsely haired. Uncus absent. Socii represented as 

 heavy hair tufts at extremity of tegumen. Gnathos poorly defined, 

 weakly chitinized. Aedaeagus long, slender, straight ; conuti absent. 



Abdomen of male simple. 



Female genitalia with two signa developed as short thorn-like 

 spines. Ductus bursae moderately long, unchitinized. Bursa copu- 

 latrix roughly triangular, smooth. Genital plate absent. 



A small North American genus affiliated with Laspeyresia. 



KEY TO THE SPECIES OF OFATULENA 



1. Basal half of fore wing whitish gray, finely cross marked with fuscous ; 

 ground color of ocelloid patch whitish ; hind wing hlackish fuscous. 



(1) duodecemstriata. 



Basal half of fore wing grayish fuscous, unmarked by transverse lines; 



ground color of ocelloid patch ocher yellow ; hind wing dark smoky brown. 



(2) luminosa. 



1. OFATULENA DUODECEMSTRIATA (Walsingham) 



(Figs. 30, 119, 309) 



Grapholitha? duodecemstriata Walsingham, Trans. Eut. Soc. London, 



1884, p. 146. 

 Enarmonia duodecemstriata Febnald, in Dyar List N. Amer. Lepid., no. 



5284, 1903. 

 Laspeyresia duodeoemstriata Barnes and McDunnough, Check List Lepid. 



Bor. Amer., no. 7240, 1917. 



A beautiful species easily recognized by its whitish gray, finely 

 cross-striped fore wing with large many striped ocelloid patch and 

 its black brown hind wing. 



Genitalia figured from specimens in National Collection from 

 Tempe, Ariz. (" July 19, 20," male) and La Puerta, Calif. (" July, 

 1911, Wright and Field," female). 



Disti'ihution. — Texas, Arizona, Utah, Nevada, California. 



Alar expanse. — 14-17 mm. 



Type. — In British Museum. 



Type locality. — Arizona. 



Food plant. — Mesquite beans. 



2. OFATULENA LUMINOSA, new species 

 (Figs. 120, 310) 



Palpus white. Face white. Head pale ocher yellow shading to 

 white in center. Thorax fuscous gray; tegula paler, whitish gray; 



