UYUIlOiClA. Ol 



white very faintly tinged witli ochreous ; the underside witli the 

 costal area slightly irrorated with fuscous. 



I/ab. W. France, Charente Inf., Koyau in Coll. Hucherard, 

 Ej.y. c? 42, 2 52 millim. 



Sect. II. AnteniiiE of male bipectinate with very short fasciculate brauches. 



A. Fore wing of male white tinged with rufous, of female grey 



with tlie medial area rufous ^jGi^tecc/zs. 



■ B. Fore wing of both sexes ochreous-wliite tinged with rufous., mcdialts. 



4333. Hydrcecia pallescens. (Plate CXXXVII. fig. 26.) 



Hydrmcia pallescens. Smith, Trans. Am. Eut. Soc. xxvi. p. 25 (1899) ; 

 Dyar, Cat. Lep. jV. Am. p. 175. 



6 . Head and thorax white slightly tinged with rufous ; tarsi 

 rufous ringed with white ; abdomen white with a very faint rufous 

 tinge. Fore wing white tinged with rufous, more strongly ou 

 medial area except towards co.sta ; suhbasal line indistinct, Avhitish, 

 angled outwards on subcostal nervure and ending at submedian 

 lobl ; antemedial line white, angled inwards on subcostal nervure, 

 strongly cxcurved to submedian fold, then sinuous ; claviform 

 represented by a faint pale mark ; orbicular and renitorm whitish, 

 undefined, the former rather oblique elliptical ; postmedial line 

 white, strongly bent outwards below costa, then very oblique and 

 slightly sinuous ; subterminal line whitish slightly defined by rufous 

 on outer side, somewliat excurved at vein 7 and middle; cilia white 

 at base, tinged with rufous at tips. Hind wing white with a faint 

 yellowish tinge, the cilia pure white ; the underside with the costa 

 faintly tinged with rufous, an indistinct sinuous postmedial line. 



$ . Head, thorax, abdomen, and wings with the ground-colour 

 grey. 



Hah. Canada, Alberta, Calgary ( Wolleif-Bod), 2 d , 1 $ , High K. 

 {Baird), 1 c? , 1 $ ; U.S.A., Oregon, Fort Klamath. Ki^)- oO milhm. 



4334. Hydrcecia medialis. 



Hijdroccia medialis, Smith, Trans. Am. EiU. Soc. xxi. p. 74 (1S94) ; Dyar, 

 Cat. Lep. JS. Am. p. 175. 



c5' . Head and thorax bright rufous mixed with yellowish ; 

 abdomen ochreous tinged with rufous. Fore wing ochreous-white 

 tinged with rufous and slightly irrorated with red-browm, a broad 

 band of rufous sutt'usiou before the postmedial line trom costa to 

 vein 1 ; antemedial line very indistinct, rufous, oblicjue from cosla 

 to submedian fold, then slightly incurved ; orbicular large, round, 

 defined by a fine rulous line except above ; renilorm large, defined 

 by a fine rufous line, the upper extremity produced ; postmedial line 

 white, strongly bent outwards below costa and veiy oblique below 

 vein 7 ; subterminal line very indistinct, pale, angled outwards at 

 vein 7j excurved at middle, then oblique ; a line rulous terminal 



