61DERIDIS. 



443 



white, more or less scrongly tinged with brown, especially on 

 terminal area, the termen slightly tinged with rufous ; the underside 

 with the costal and terminal ?reas irrorated and suffused with red, 

 traces of a curved postmedial line. 



Hah. Canada, Alberta, Calgary ( TFoZ?e!/-Z)ocZ), 1 $; U.S.A., N.E. 

 and Middle States, New York, Albany {Bailey), 2 J , 3 $ , type 

 vindemialis, Grote. E.rj-). 42 millim. This may be a variety of 

 congermana. 



Larva. Head brown, reticulate and banded with darker brown. 

 Body sordid pale brown, finely and densely dusted with brown- 

 black, leaving a distinct dorsal and broad paler substigmatal band 

 of the ground-colour. Cervical shield shining brown, a central pale 

 yellow line, the lateral corners luteous. Feet coloured like the 

 body.— U. G. D. 



1784. Sideridis csesia. 



Kocfua ccEsia, Schiff. Wien. Verz. p. 82 (177()) ; Borfc. Eur. Scbuiett. iv. 



p. 279 (1792) : Hiibn. Eur. Sclmiett., Noct. f. 60 ; Dup. Lep. Fr. vi. 



p. 415, pi. 98. f. 6 ; Staud. Cat. Lep. pal. p. 162. 

 JS'ocfua dichroma, Esp. Schinett. iv. p. 5l9, pi. \bii. f. 2 (1790). 

 Bianthcecia mananii, Gregson, Entoin. iii. p. 103 (1866). 

 Bianthoecia dcmhlcdcn/i, Mill. Nat. Sic. vi. p. 2 (18S6). 

 BJMithoeciii nigresccns, Stand. Cat. Lep. pal. p. 162 (1902). 

 Dianthacia clara, Staud, Cat. Lep. pal. p. 162 (1802). 



Head and thorax bluish grey mixed with fuscous ; tarsi black 

 with whitish rings ; abdomen grej'-brown. Fore wing blue-grey 

 thickly irrorated with fuscous, the ante- and postmedial areas suffused 

 with fuscous ; the discal and subraedian folds suffused with fulvous 

 yellow ; subbasal line waved, from costa to submedian fold ; ante- 

 medial line oblique, waved, defined by whitish on inner side ; clavi- 

 form absent ; orbicular and reniform with indistinct yellow annuli, 

 the former rounded ; an indistinct curved medial line, waved on 

 inner area ; postmedial line dentate and produced to grey points on 

 the veins, bent outwards below costa and incurved below vein 4, 

 some pale points beyond it on costa ; subterminal line whitish, with 

 more or less distinct dentate yellowish marks on inner side, angled 

 outwards at vein 7 and obscurely dentate at veins 4 and 3 ; cilia 

 chequered ochreous whitish and fuscous. Hind wing fuscous brown, 

 rather paler on basal and inner areas ; the cilia whitish, with a dark 

 line near base ; the underside grey irrorated with brown, a curved 

 postmedial line, the area beyond it suffused with fuscous. 



Ab. 1, manani. Much darker, and the fore wing more uniform 

 in colour. — Isle of Man. 



Ab. 2, nigrescens. Much darker; fore wing suffused with black. 

 — Higher Pyrenees, Alps, and Scandiu avian mountains. 



Ab, 3. clara. Fore wing greyer, slightly irrorated with pinkish ; 

 the medial area whitish. — Armenia, Asia Minor. 



Hah. Britaix, Isle of Man (Douhledag), Leech Coll., Ireland ; 

 France, Pyrenees, Gavarnie (Mrs. JS'ichoIl) ; Austria, Zeller Coll, ; 

 HxjKGARY ; BwiTZEEL.v>'P, Zellcr and Froy Colls, : SrAix, Granada ; 



