6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
Typr.—Male, U.S. National Museum, USNM 67595, genitalia slide 
OBP 290. 
Typr-LocaLity.—Baboquivari Mts., Pima Co., Ariz. 
PARATYPES.—UNITED sTaTEs: Arizona: type-locality, 8 o, 4 Q; 
Brown Canyon, Baboquivari Mts., 7 9; Madera Canyon, Santa Rita 
Mts., 33 o’, 28 9; Madera Canyon, Pima Co., 1 9; Paradise, Cochise 
Co., 1 &#; Tempe, 1 @, 1 9; Tucson, 1 o, 1 9; Scottsdale, Maricopa 
Co., 1 &@; Southwestern Res. Sta., Chiricahua Mts., 2 o, 1 9; Chiri- 
cahua Mts., 2 co, 1 9; White Mts., 1 9; Huachuca Mts., 2 9; Yavapai 
Co., 1 9; “Arizona” [no additional locality], 2 o, 3 9. California: 
San Diego, 7 o', 4 9; La Puerta Valley, 2 o, 3 9. Utah: Beaver, 
1 @. New Mexico: Mesilla, 19. Texas: Limpia Canyon, Jeff Davis 
Co., 1 9. mexico: Sonora: Nainari, 1 o&, 5 9. Paratypes in the 
U.S. National Museum, Los Angeles County Museum, American 
Museum of Natural History, the collection of C. P. Kimball, the 
Canadian National Collection, and the British Museum (Nat. Hist.). 
Foop puant.—Unknown. 
IN FLIGHT.—June to September. 
Remarxs.—The L. pseudohelvialis series contains specimens with 
labels of both helvialis and citrina. If specimens are in good con- 
dition, the luteous suffusion along the outer margin of the fore- 
and hindwing distinguishes specimens of pseudohelvialis from those 
of helvialis. The more incrassate midtibia and hair-pencil of pseudo- 
helvialis also distinguish its males from those of helvialis, but exami- 
nation of the genitalia is necessary for reliable identification of worn 
females. 
Loxostege arizonensis, new species 
Figures 11, 64, 112 
Mate (fig. 112).—Alar expanse 20-24 mm. Frons conical. An- 
tenna ciliate, length of cilia about one-half width of shaft. Midtibia 
distinctly incrassate, hair-pencil well developed. Outer spur slightly 
less than one-third as long as inner spur. Similar to pseudohelvialis 
in color and maculation, but the average size of arizonensis is larger 
and luteous suffusion along outer margin of fore- and hindwing is 
more extensive. 
Genitalia (fig. 11): Uncus pointed. Harpe with hairlike scales 
simple; padlike production above base of hook narrow, nonscobinate, 
but with a few simple setae, hooklike structure strong, curved; 
sacculus normally with a single spine about midway between cluster 
of spines and base of anellus. Vinculum narrowly attenuate mid- 
ventrally. Aedeagus with a conspicuous, thin, rounded basal keel and 
a dense cluster of spinelike cornuti distally. 
Fremate.—Alar expanse 19-24 mm. Similar to male in color and 
maculation. Genitalia (fig. 64) with midventral invagination of 
