NOETH AMERICAN LASPEYRESIINAE AND OLETHREUTINAB 109 

 HULDA IMPUDENS (Walsingham) 

 (Figs. 52, 193, 388) 



Penthina impudens Walsingham, Trans. Bnt. Soc. London, 1884, p. 135. 

 Olethreutes impudens Fernald, in Dyar List N. Amer. Lepid., no. 5073, 



1903.— Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 1924, p. 456. 

 Argyroploce impudens Barnes and McDunnough, Check List Lepid. Bor. 



Amer., no, 6871, 1917. 



A variable species, some specimens liaving the whitish areas of 

 fore wing much more suffused with fuscous, especially toward apex, 

 a complete dark median band and well-marked subapical bar. Be- 

 tween this and the typical pale form Avith broken median band and 

 an almost obsolete subapical bar, the intergradations are very grad- 

 ual, so no varietal lines can be drawn. 



Male and female genitalia figured from specimens in National 

 collection from Oak Station, Pennsylvania ("June 4-05," male) and 

 Plummer Island, Maryland (Busck, May 30, 1916, female). 



Distribution. — North Carolina, Virginia, Maryland, Pennsylvania, 

 New Jersey, Massachusetts, New Hampshire, Ontario, Manitoba. 



Alar expanse. — 10,5-14 mm. 



Type. — In British Museum, 



Type locality. — North Carolina. 



9. ESIA, new genus 



(Figs. 56, 202) 



Genotype. — Olethreutes approximana Heinrich (North America). 



Thorax with posterior tuft. 



Fore wing smooth ; termen convex ; 12 veins, all separate ; 7 to ter- 

 men; 8 and 9 closely approximate; upper internal vein of cell 

 from between 10-11; 3, 4. and 5 not approximate at termen; 2 from 

 cell at %, straight. 



Hind wing with 8 veins ; 6 and 7 approximate toward base ; 3 and 

 4 connate; 5 bent at base, but rather well separated from 4; termen 

 nowhere appreciably notched ; inner margin simple in male. 



Hind tibia of male without basal hair pencile. 



Male genitalia with harpe moderately long, broadened beyond base, 

 with a row of long flat spines on outer surface ; cucuUus stout, densely 

 and strongly spined, apex evenly rounded ; spine cluster Spc^ strong ; 

 spine cluster Spc- fused with spining on outer surface; sacculus 

 weakly spined toward base, not extended in an arch over neck. 

 Uncus reduced, rounded, very wealdy spined. Socii absent. Gnathos 

 constricted and closely encircling alimentary tube toward extremity 

 of tegumen, well chitinized, produced into a free chitinized blade be- 



