456 noctuidjE. 



4151. Balsa tristrigella. 



Gargaza tristrigella, Wlk. xxx7. 1734 (1865) ; Smith, Cat. Noct. N. Am. 



Asisyra zelleri, Grote, Bull. Buff. Soc. Nat. Sci. i. p. 169 (1873). 



Head and thorax grey-white slightly tinged with brown ; sides 



of palpi and frons blackish ; a black bar between antennae which 



are pale rufous ; tegulse with blackish band near tips ; legs blackish, 



the tarsi slightly ringed with white ; abdomen brownish white. 



Fore wing whitish suffused with pale red-brown, the veins with 



prominent dark streaks ; subbasal line represented by a slight 



black striga from costa, the antemedial line by an oblique black 



striga from costa and point on median nervure ; stigmata absent ; 



slight black streaks beyond the cell ahove and below vein 5 ; 



postniedial line very indistinct, brown faintly defined by whitish 



Fig. 129. — Balsa tristrigella 



on outer side, bent outwards below costa, then oblique and 

 strongly dentate, some slight black streaks beyond it on costa ; 

 subterminal line absent; the interspaces of terminal area wilh 

 slight black streaks ; cilia whitish intersected with slight rufous 

 streaks. Hind wing whitish tinged with pale red-brown ; cilia 

 white ; the underside white irrorated with red-brown, a slight dis- 

 coidal spot with oblique dark mark above it from costa, and faint 

 curved postmedial line. 



Hob. U.S.A., Massachusetts, New York (Packard, Smith), 2 6 , 

 2 2 > Schenectady (Lintner), 1 $ , Texas ; Hab. ign., 1 3 type. 

 Exp. 28 millim. 



4152. Balsa labecula. (Plate CXXXIV. fig. 2.) 



Nolophana labecula, Grote, Can. Ent. xii. p. 217 (1880); Smith, Cat. Noct. 

 N. Am. p. 194. 



5 . Head and thorax bluish white slightly mixed with brown 

 palpi brownish at sides; frons with slight lateral brown bars 

 tegulaB with brown band at tips ; tarsi blackish ringed with white 

 abdomen white slightly irrorated with black and with blackish 

 dorsal marks on terminal segments. Fore wing bluish white 

 slightly irrorated and suffused with brown, the veins with slight 

 dark streaks ; basal and subbasal black points on costa ; ante- 

 medial line blackish, oblique from costa to middle of cell, then 

 waved and strongly angled outwards above inner margin, traces 

 of another oblique line beyond it on costal area ; stigmata absent ; 



