ACRONTCTA. ] 33 



subterminal line represented by a series of whitish marks in the 

 interspaces with blackish points on their outer side ; a terminal 

 series of slight black points with dark marks beyond them on the 

 cilia. Hind wing white tinged with oehreous brown especially 

 towards base ; cilia white ; the underside white slightly tinged 

 with oehreous, the costal area with very slight brown irroration. 



Ab. 1. pepli. Pore wing darker and more uniform in colour. 



Hah. Britain, Leech Coll. ; Feancb, Leech Coll. ; Denmark, 

 Leech Coll. ; Germany, Zeller & Frey Colls. ; Austria ; Hungary ; 

 Switzerland, Frey Coll. ; Spain, Catalonia ; Italy ; Norway, 

 Surendal {Christy)-, Laplaistd ; Kussia, Finland, Esthonia, Zeller 

 Coll., St. Petersburg, Zeller Coll. ; Armenia ; N". Siberia ; 

 E. Siberia, Amurland. Exp. 36-42 millim. 



Larva. Mejr. Brit. Lep. p. 143 ; Barrett, Lep. Brit. iii. p. 259, pL 121 . f. 4. 



Black, the segmental incisions greyer; somites 2— 12 each with 

 two or four orange red tubercles bearing fascicles of orange hair, 

 the other hairs blackish ; head and thoracic plate black. Food- 

 plants : Oak, Birch, liubus, &c. 6-7 and 9-4. 



3718. Acronycta pul¥erosa, n. sp. (Plate CXXVL fig. 9.) 

 Acronycia pndiiosa. Leech, Trans. Enfc. Soc. 1900, p. 104 (xi^c Guen.). 



Head and thorax grey-white mixed with daik brown ; palpi 

 with black patch on 2nd joint at sides ; tegulas with dark marks 

 near tips at middle ; patagia with black streaks on outer edges ; 

 tarsi banded with fuscous ; abdomen grey-white irrorated with 

 fuscous and dorsally suffused with brown. Fore wing grey- white 

 irrorated and in parts suffused with brown ; subbasal line repre- 

 sented by double black striae from costa ; a slight sinuous black 

 streak in submedian fold from base to antemedial line, its lower 

 edge expanding into a spot at middle Mnth brownish mark beyond 

 it ; antemedial line rather indistinct, double, oblique, waved, angled 

 inwards below costa and cell and on vein 1 ; orbicular whitish 

 defined by black at sides, rather oblique quadrate ; reniform defined 

 by black, the black on outer edge reduced to points, its centre 

 suffused with brown, somewhat constricted at middle ; an oblique 

 dark striga from costa to reniform and traces of an oblique line 

 from cell to inner margin angled outwards on vein 1 ; postmedial 

 line double filled in by white lunules, the inner line indistinct 

 except at costa, bent outwards below costa, then minutely dentate, 

 incurved below vein 3 and angled outwards on vein 1, a black 

 streak from it to termen in submedian fold, some brown suffusion 

 in discal and submedian fold.s and some white points with slight 

 dark streaks between them beyond it on costa ; faint traces of 

 a subterminal series of whitish marks in the interspaces ; a terminal 

 series of small black lunules with slight brown marks beyond them 

 on the cilia. Hind wing white tinged with brownish fuscous, the 

 terminal area suffused with brown from apex to vein 2 ; an in- 

 distinct ])0stmedial sinuous line ; cilia white with a series of brown 

 spots ; the underside white faintly tinged with brown, a dark 



