PERIGRAPHA. 



405 



area paler ; antemedial line double, evenly oblique, fuscous ; clavi- 

 form absent ; orbicular and reniform large, pale grey defined by 

 fuscous, the former elliptical, touching below the latter, which is 

 tinged with red ; an indistinct medial shade ; postmedial line double, 

 fuscous, interrupted, indistinct, excurved beyond cell, the medial 

 part of postmedial area much paler ; subterminal line represented 

 by some black irroration ; a series of blackish terminal lunules. 

 Hind wing fuscous ; the underside fuscous brown with some pale 

 irroration, a discoidal spot and postmedial line. 



Hah. U.S.A., California, Sierra jSTevada. Exp. 30 millim. This 

 species is unknown to me. 



Sect. II. {Aceri-a). Autennae of male bipectinate, the apex serrate ; of female 

 minutely serrate. 



A. Fore wing with the orbicular and reniform confluent normalis. 



B. Fore wing with the orbicular and reniform not confluent. 



a. Fore wing with tbe orbicular present pulchclla. 



b. Fore wing with tbe orbicular absent. 



a}. Fore wing with tbe postmedial area darker tban 



ground-colour terminata. 



J\ Fore wing with tbe postmedial area concolorous ■pectinafa. 



1727. Perigrapha normalis. 



Acerra normalis, Grote, BuD. Buff. Soc. Xat. Sci. ii. p. 162 (1894) ; id 

 Check List Noct. pi. f. 4 ; Smitb, Cat. Noct. N. Am. p. 207. 



Head and thorax clothed with hair only, purplish brown mixed 

 with grey ; sides of palpi and frons dark brown ; tegulae with 

 brown lin^ at tips ; abdomen grey-brown irrorated with dark 

 brown. Pore wing grey suffused with purple-brown and irrorated 



Fig. lOy. — Ferigrajjha normalis, ,5 . \. 



with black ; a slightly curved subbasal black line from cell to 

 submedian fold ; antemedial line indistinct, very oblique from costa 

 to vein 1 near postmedial line, then angled inwards ; orbicular and 

 reniform very large, forming a V with very broad arms and 

 extending to below cell, where it is broadly truncate, defined by 

 whitish lines and by deep black suffusion in middle, at sides and 

 below, open above ; postmedial line fuscous, bent outwards below 

 costa, excurved to vein 5, then very obliquely incurved ; sub- 

 terminal line almost obsolete except towards costa, very slightly 

 angled outwards at vein 7 and excurved at middle ; a terminal 



