BIDERIDI8. 



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 areas irrorated and suffused with red, 

 traces of a curved postmedial line. 



Hah. Canada, Alberta, Calgary ( TF"oZ%-Z)ocZ), 1 ?; U.S.A., N.E. 

 and Middle States, New York, Albany {Bailey), 2 (5,3 $ , type 

 vindemiaUs, Grote. Ea^p. 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 shiuing brown, a central pale 

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

 body.— H. G. D. 



1784. Sideridis caBsia. 



Kodua ccBsia, Schiff. Wien. Verz. p. 82 (177()) ; Bork. Eur. Schmett. iv. 



p. 279 (1792) ; Hiibn. Eur. Schmett., Noct. f. 60 ; Dup. Lup. Fr. vi. 



p. 415, pi. 98. f. 6 ; Stand. Cat. Lep. pal. p. If52. 

 l:\octua dichroma, Esp. Schmett. iv. p. 519, pi. 155. f. 2 (1790). 

 Dianthcecia mmianii, Gregson, Entom. iii. p. 103 (1866). 

 Biantlmcia doubledayi. Mill. Nat. Sic. vi. p. 2 (18S(i). 

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

 Dianthcecia clara, Staud. Cat. Lep. pal. p. 162 (1902). 



Head and thorax bluish grey mixed with fuscous ; tarsi black 

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

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

 with fuscous ; the discal and submedian 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. nifjrescens. Much darker; fore wing suffused with black. 

 — Higher Pyrenees, Alps, and Scandinavian mountains. 



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

 the medial area whitish. — Armenia, Asia Minor. 



Hah. Britain, Isle of Man {Douhleclay), Leech Coll., Ireland ; 

 France, Pyrenees, Gavarnie (Mrs. Nicholl) ; Austria, Zeller Coll. ; 

 HtTNGARY ; SwiTZEELANP, ZcUcr and Froy Colls. ; Spain, Granada ; 



