10 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
Remarxs.—The type of polingi bears a label indicating that it had 
been compared with the cotype of citrina and regarded as conspecific 
with it, prior to dissection of the genitalia. Other labels also indicate 
confusion with helvialis and with a more remotely related species, 
Pionea eupalusalis Walker. The rather broad, fimbriate clasper 
distinguishes the male genitalia of poling: from those of helmalis and 
eupalusalis; the configuration of the sclerotization of the ductus 
bursae between the ostium and collarlike structure at origin of the 
ductus seminalis is diagnostic for the females of polingi. 
Loxostege pelotasalis, new species 
Fiaures 15, 113 
Mate (fig. 113).—Alar expanse 18 mm. Frons conical. Antenna 
somewhat pubescent, cilia very short. Midtibia slightly incrassate, 
hair-pencil weak. Outer spur one-half as long as inner. Similar to 
polingi in maculation. Genitalia (fig. 15) similar to those of polingi 
but with uncus broader, stouter; fimbriate clasper of harpe narrower; 
aedeagus with a narrow, curved, hooklike cornutus in addition to 
distal patch of slender spinules. 
FrmMaLe.—Unknown. 
Typr—Male, Cornell University, genitalia slide HWC 10,642. 
Typr-LOcALITy.—Pelotas, Rio Gran do Sul, Brazil. 
Foop pLrant.—Unknown. 
In FLIGHT.—May. 
Remarks.—FEfforts to obtain females of pelotasalis were unsuccess- 
ful. No other closely related species was noted in the South American 
material examined; there should be no difficulty in association of the 
sexes when the females become available. 
Loxostege boliviensis, new species 
Fiaures 16, 110 
Mats (fig. 110).—Alar expanse 19 mm. Frons conical. Antenna 
pubescent. Similar to pelotasalis in color but with markings much 
weaker, barely discernible. Genitalia (fig. 16) resemble those of 
pelotasalis but with uncus more pointed, the fimbriate clasper of the 
harpe distinctly narrower and more extenuate basally, and with a 
conspicuous, strong, hooklike production from near middle of dorsal 
margin of sacculus. 
Fremate.—Unknown. 
Typr.—Male, Canadian National Collection, genitalia slide CNC 
3765 MS. 
TyPE-LOCALITY.—Puerto Suarez, Bolivia. 
Foop pLaAnt.—Unknown. 
In FriiacHt.—December. 
