162 NOCTUIB,!!. 



Ab. 1. hradyporina, Treit. Head and thorax irrorated with 

 fuscous ; fore wing strongly irrorated with fuscous, the veins with 

 shght dark streaks, the postraedial line more distinct, minutely 

 dentate with scries of small black spots on it and more distinct 

 dentate black marks at discal fold and below vein 2 ; hind wing 

 with the veins of terminal half irrorated with black, a terminal 

 scries of black strige with some fuscous beyond them at base of 

 cilia. 



Ab. 2. semivirga. Fore wing with the terminal area suffused 

 with fnscous. 



Ab. 3. leporelJa. Fore wing white irrorated with fuscous, the 

 markings indistinct. — Tibet, E. Siberia, Japan. 



Ab. 4. mcestn. Much more thickly irrorated with grey. — Br. 

 Columbia. 



Ilab. Canada, Ontario, Br. Columbia, Kaslo ; U.S.A., Maine, 

 Xew Hampshire, Jefferson, Massachusetts, New York, N. Illinois ; 

 Britain, Leech Coll. ; France, Sand Coll. ; Holland, Zeller Coll. ; 

 Denmaek ; Germany, Zeller, Frey, and Leech Colls.; Austria, 

 Zeller Coll. ; Hungahy ; Switzerland ; Spain, Bilbao ; N. Italy ; 

 Finland ; Eussia, St. Petersburg, Zeller Coll., Sarepta ; Armenia ; 

 W. TrRKESTAN, Issyk Kul ; W. Siberia ; E. Turkestan, Hi ; Tibet, 

 Kuku Nor, Amdo ; E. Siberia, Amurland, Ussuri ; Japan, Oiwake 

 {Prijer), 1 c^ . Exp. 3S-48 millim. 



Larva. Meyr. Brit. Lep. p. 140 ; Barrett, Lep. Brit. iii. p. 226, pi. 120. 

 f. 1 ; Smith, Pr. U.S. Nat. JVlus. xxi. pi. 8. f. 26. 



Green or greenish yellow, sometimes with obscure red-brown 

 dorsal and lateral suffusion ; numerous long white or yellowish hairs 

 directed forwards on right side and backwards on left ; sometimes 

 Avith dorsal tufts of black hairs ; head sometimes marked with 

 black. Food-plants : Alder, Birch, Elm, Salicc. 7-9. 



(American.) Head pale brownish. Body yellow, the hairs long, 

 soft, white or yellow, growing from the skin. Food-plant: Poplar. 

 — H. G. D. 



Ab. moesta. — Head white, largely black in front. Body whitish 

 or yellowish; the hairs long, soft, fine, growing from the skin, yellow 

 or white, no hair-pencils ; a more or less well developed dorsal 

 black stripe. Food-plant : Poplar. — H. G. D. 



Genus EULONCHE. 



Type. 



Eulonche, Grote, Bull. Buff. Soc, Nat. Sci. i. p. 81 (1873) oUinita. 



Proboscis slight, non-fuiictional ; palpi slender, obliquely porrect, extending 

 to well beyond frons, the 2nrl joint fringed with long hair ; Irons smooth ; eyes 

 large, rounded ; antennje laminate ; thorax clothed with hair and hair-like .scales 

 and without crests ; tibite fringed with long hair ; abdomen with some rough hair 

 at base and lateral fringes of hair but without crests. Fore wing narrow, the 

 apex more or less produced and the termen oblique, not crenulate ; veins o 

 and 6 from near angle of cell ; 6 from upper angle ; 9 from JO anastomosing 

 with 8 to from the areole, 11 from cell. Hiud wiug with veins 3, 4 from angle 

 of cell; 6 obsolescent from just below middle of discocellulars ; 6,7 shortly 

 stalked ; 8 anastomosing with the cell near base only. 



