110 U.S. NATIONAL MUSEUM BULLETIN 244 



1929.— Gaede in Seitz, Macrolep. World, vol. 6, p. 1185, pi. 169f, 1936.— 

 McDunnough, Check List Lep. Canada and USA, pt. 2, no. 9517, 1939. — 

 Vazquez, Anales Instit. Biol., vol. 13, no. 1, p. 268, figs. 44, 46, 1942; in 

 Mem. Congr. Cient. Mex., Vll-Cienc. Biol., p. 339, 1953. 

 Oiketicus mortonjonesi Vazquez, Anales Instit. Biol., vol. 20, nos. 1-2, p. 339, 

 figs. 1-2, 1-8, 1949 (new synonymy) ; in Mem. Congr. Cient. Mex., VII- 

 Cienc. Biol., pp. 325, 330, 333, 336, 339, fig. 7e, 1953. 



Male. — (Figs. 46, 47.) Body vesture yellowish brown. Antennae 

 33- to 38-segmented; apical third strongly biserrate. Epiphysis less 

 than j^ length fore tibia. Tibiae of meso- and metathoracic legs 

 each with single apical spur. 



Wings slender, usually semitransparent, with a few sparsely scat- 

 tered dark scales; some specimens with more scales persisting, thus 

 demonstrating somewhat clearly the characteristic color pattern of 

 this subgenus; venation varying slightly, essentially only in outer 

 medial veins of secondaries. Forewing apex extended, termen strongly 

 oblique; discal scales oblanceolate with acute or bluntly rounded 

 apices. Secondaries with basal crossvein and one or two subcostal 

 spurs present; outer radial crossvein distinctly separated from apex of 

 cell; termen shallowly excavate to nearly straight. Wing expanse 

 28-35 mm. 



Male genitalia, — (Fig. 289.) Very slender. Valves with pulvilli 

 well developed. Neck of aedeagus smoothly curved. 



Female. — Length approximately 27 mm. As described for genus. 



Female genitalia. — (Fig. 314.) 



Case. — (Figs. 98, 99.) Length 60-90 mm.; diameter at widest part 

 10-12 mm. Elongate fusiform, composed of greyish-white silk, 

 frequently largely exposed because of small amount of attached ma- 

 terial used in construction; extraneous material consisting of short 

 (approximately 15 mm.) segments of slender twigs applied longi- 

 tudinally, or covered by leaf fragments tightly appressed to surface; 

 sometimes mixture of both. 



Types. — In the United States National Museum {0. toumeyi) ; 

 Instituto de Biologia, Mexico City {0. mortonjonesi) . 



Type localities. — Tucson, Arizona (0. toumeyi) ; Camino entre 

 Ixtapan de la Sal y Tonatico, Mexico (0. mortonjonesi). 



Recorded hosts. — "Asteraceae: Baccharis ramulosa (DC) A. 

 Gray" (Vazquez, 1949). "Cupressaceae: Juniperus sempervirens ; 

 Fabaceae: Mimosa sp., Robinia neomexicana A. Gray" ((from speci- 

 men labels), "Prosopis juliflora (Swartz) DC" (Vazquez, 1949). 

 "Rosaceae: Prunus Armeniaca L., Pyrus malus L.; Sapindaceae: 

 soapberry bush [Sapindus sp.]; Simaroubaceae: Ailanthus altissima 

 (Mill.) Swingle" (from specimen labels). 



Distribution.^ — (Map 10.) This species occurs from the Basin and 

 Range Province of southern Arizona, south to the states of Colima 



