456 NOCTIJTD^. 



4151. Balsa tristrigella. 



GargazatrisirigeUa,yN\k.-:'i%^7.Vl3^{\Q&b); Smith, Cat, Ncct. N. Am. 



p. 193. 

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



Head and thorax grey-white slightly tinged with brown ; sido^s 

 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 above and below vein 5 ; 

 postmedial line very indistinct, brown faintly defined by whitish 



Fig. 129. — Balsa tristrigella, (^ . \ 



on outer side, bent outwards below costa, then obli(pae and 

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

 subterminal line absent ; the interspaces of terminal area with 

 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. 



Bab. U.S.A., Massachusetts, New York (Packard, Smith), 2 J , 

 2 2 , Schenectady (Lintner), 1 5 , Texas ; Hab. ign., 1 d" type. 

 Exp. 28 millim. 



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



Nolopho.na lahecida, 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 ; 

 teguli« wdth 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 

 w^aved and strongly angled outwards above inner margin, traces 

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



