PAPAIPEMA. 83 



from costa to vein 1, with small white spot beyond it in cell; 

 antemedial line indistinct, double, angled outwards below costa, 

 incurved in cell, oblique to vein 1 and bent outwards above inner 

 margin, some white scales on it in submedian interspace ; claviform 

 represented by two obliquely placed round white spots; the orbicular 

 a larger rounded white spot with yellow point on outer edge ; the 

 reniform with curved yellowish-white line in middle surrounded by 

 small white spots ; medial line indistinct, dark, oblique from costa 

 to median nervure, then erect and slightly waved ; postmedial line 

 double with whitish spot at costa, bent outwards below costa, then 

 minutel)- waved, oblique below vein 4, some white points beyond 

 it on costa ; subterminal line formed by a series of slight dark 

 lunules with some white scales on them from costa to vein 7, 

 angled outwards at veins 7, 4, 3, then oblique ; a faint yellowish 

 apical spot ; a fine dark terminal line. Hind wing greyish suffused 

 with cupreous brown ; cilia with a fine brown line through them 

 and whitish tips ; the underside grey irrorated with brown, thickly 

 on costal area, a dark discoidal spot and indistinct curved post- 

 medial line. 



Ab. 1. frigida. Fore wing without the white spots on the 

 stigmata. 



Ab. 2. Fore wing with the terminal area not tinged with golden 

 brown, the reniform less elongate. — New York. 



Hob. Canada, Montreal (Lyman), 1 S , Ottawa (Young), 1 rf , 

 1 § , Manitoba, Winnipeg ; U.S.A., New Hampshire, White Mts., 

 New York, Rye (Bird), 1^,2$. Exp. 34-44 millim. Types f 

 thallctri and perobsoleta in Coll. Lyman. 



Larva. Semitranslucent whitish, with pale reddish-brown seg- 

 mental bands in early stages, disappearing in the later stages ; 

 tubercles small, black ; head and thoracic plate pale red-brown. 

 Food-plant, Thalictrum. 



4397. Papaipema cerussata. (Plate CNXXIX. fig. 4.) 



Gortyna cerussata, Grote, Proc. Ent. Soc. Phil. ii. p. 431, pi. ix. f. 1 (1864) ; 

 Smith, Cat. Noct. N. Am. p. 178. 



Head and thorax very dark red-brown mixed with some greyish 

 ochreous ; antenna? with the basal joint white; teguke edged with 

 white behind ; abdomen dark reddish brown mixed with greyish 

 ochreous, the crests dark at tips. Fore wing very dark purple- 

 brown, the medial area red irrorated with yellow towards inner 

 margin, the postmedial and terminal areas with a greyish gloss ; a 

 small white spot at base ; subbasal white spots in and below cell, 

 followed by two small spots in cell, then a single spot ; antemedial 

 line indistinct, sinuous, bent outwards above inner margin, defined 

 slightly by rufous on inner side from cell to inner margin ; clavi- 

 form represented by two obliquely placed white spots, the upper 

 smaller ; orbicular white, rather triangular ; reniform narrow, 

 oblique, with pale yellow line in centre defined by brown surrounded 



