14 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
Genitalia (fig. 20): Uncus stout. Harpe with cluster of digitate 
setae; pad broadly rounded and scobinate distally; sacculus with a 
long, slender, curved spine and two subequal strongly sclerotized 
productions, the outer bluntly conical, the inner slender, fingerlike, 
sometimes sharply pointed distally. Aedeagus stout, without 
cornutus. 
Frema.e.—Alar expanse 21-26 mm. Similar to male in color and 
maculation. Genitalia (fig. 70) with ventral margin of ostium 
distinctly concave medially. 
Lectotype.—Female, American Museum of Natural History, 
Grote and Robinson no. 22995. 
TyprE LocaLity.— Atlantic District (Penna.).” 
Foop pLtants.—Ambrosia trifida and Solidago. 
DISTRIBUTION.—UNITED sTATES: Maine, Connecticut, Massachu- 
setts, New York, New Jersey, Pennsylvania, Maryland, District of 
Columbia, Virginia, North Carolina, Alabama, Mississippi, Ohio, 
Illinois, Missouri, Michigan, Iowa, Texas, and New Mexico. CANADA: 
Ontario, Quebec. 
SPECIMENS EXAMINED.—117. 
In ruicgHt.—May to September. 
RemARKs.—Labels in collections indicate confusion of marculenta 
with helvialis, obliteralis, and mancalis. The presence of subterminal 
lines on the fore- and hindwings distinguishes marculenta from helvialis 
and others of that group. The markings on the wings of marculenta 
are somewhat diffuse, often obscure, usually more brownish and with 
the definition weaker than in mancalis, and the subterminal line of 
the hindwing is closer to the outer margin in mancalis than in 
marculenta. ‘The frons is conical in marculenta and round in obliteralis. 
Loxostege neomarculenta, new species 
Figures 21, 71, 131 
Matr.—Alar expanse 22-24 mm. With characters of marculenta 
and reliably distinguished from it only by examination of the genitalia. 
Genitalia (fig. 21): harpe with digitate setae; scobinate area of pad 
rather narrow; sacculus with a strong subequal bifid spine and a stout, 
conical production slightly beyond base of spine. Aedeagus without 
cornutus. 
Femaue (fig. 131).—Alar expanse 22-23 mm. Similar to male 
in color and maculation. Genitalia (fig. 71) with two conspicuous, 
pronglike elements from median area of ventral margin of ostium, 
margins of prongs occasionally somewhat serrate; ductus bursae 
distinctly angulate at constriction above origin of ductus seminalis. 
Typr.—Male, U.S. National Museum, USNM 67602, genitalia 
slide HWC 7825. 
