DIPHTHEEA. 369 



somites; the 1st, 2nd, 4th, and 11th somites with pencils of red 

 hair darker at tijjs and slightly feathered ; stigmata defined by 

 brown ; legs red. Food-plant, Piniis. 8-9. 



8183. Diphthera portlandia. (Plate CCXXXIV. fig. 8.) 



Panihea porilancl'm, Grote, Mittb. Eoem. Mus. Hild. iii. p. 14 (1896) ; 

 Dyar, Cat. Lep. W. Am. p. 98., 



c5' . Head and thorax white mixed with brown ; antennge brown ; 

 palpi brown with some white in front ; sides of frons brown ; 

 patagia with two obscure brown bars ; the pro- and metathorax 

 with diif used brown bands ; tibise and tarsi banded with brown ; 

 abdomen reddish brown Avith white segmental lines, the ventral 

 surface whitish. Fore wing white irrorated with brown ; subbasal 

 black-brown bars from costa and cell ; antemedial line strong, 

 black-brown, sinuous ; a slight dark streak in middle of cell before 

 the strong black-brown medial line, which is oblique and slightly 

 sinuous to the submedian fold, then excurved ; a small black-brown 

 discoidal lunule ; postmedial line black-brown defined on outer 

 side by white, oblique, angled outwards at vein 6, excurved at 

 m.iddle, then incurved and angled outwards at vein 1 ; subterminal 

 line black-brown defined on outer side by white, angled outwards 

 below veins 7 and 6 and at veins 4 and 3, angled inwards above 

 and below veins 5 and 2 ; cilia chequered black-broAvn and white. 

 Hind wing white, the basal half tinged with brown, the veins 

 streaked with brown ; a diffused sinuous brown subterminal band 

 ending at torniis ; a black-brown terminal line ; cilia cheqviered 

 brown and white ; the underside with brown bar from middle of 

 costa and sinuous postmedial line. 



2 • The markings rather blacker and better defined. 



ilah. Canada, Vancouver I. {Danhy), 1 J , 3 $ ; U.S.A., 

 Pacific States. Exi^. 50-54 millim. 



8184. Diphthera gigantea. (Plate CCXXXIV. fig. 9.) 



Flatycertira gigantea, French, Can. Ent. xsii. p. 134 (1890); Smith, Cat. 

 Noct. N. Am. p. 31. 



2 . Head and thorax white mixed with dark brown ; palpi dark 

 broAvn at sides ; patagia dark brown at tips ; tarsi ringed with 

 dark brown ; abdomen white irrorated with dark brown and with 

 narrow dark brown segmental bands. Fore wing white thickly 

 irrorated with dark brown ; siibbasal line dark brown, from costa 

 to submedian fold ; antemedial line dark brown, excurved to sub- 

 median fold, then incurved ; a diffused almost straight dark brown 

 medial line ; postmedial line dark brown, slightly sinuous to vein 3, 

 then incurved, excurved at vein 1 ; subterminal line white defined 

 on inner side by rather diffused dark brown, dentate, angled out- 

 wards below vein 7 and excurved at middle ; cilia chequered dark 



VOL. XIII. 2 B 



