PERIGRAPHA. 



405 



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

 form absent; orbicular and reniforra 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 diseoidal spot and postmedial line. 



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

 species is unknown to me. 



Sect. II. {Acerm). Auteuiijs 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 renitbrm not confluent. 



a. Fore wing with the orbicular present pulchella. 



b. Fore wing with the orbicular absent. 



a\ Fore wing with the postmedial area darker than 



ground-colour terminata. 



6\ Fore wing with the jjostmedial area concolorous pectinata. 



1727. Perigrapha normalis. 



Acerra normalis, Grote, Bull. Buif. Soc. Nat. Sci. ii. p. 162 (1894) ; id 

 Check List Noct. pi. f. 4 ; Smith, 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 ; teguloe with 

 brown line at tips ; abdomen grey-brown irrorated with dark 

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



Fig. lU'J. — Ferigrajjha uonnalis, (^ . \. 



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

 submcdian fold ; antemedial lino indistinct, very oblique from costa 

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

 reniform very large, forming a V Avith 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 fusoous, 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 



