^66 NOCTDIDJE. 



Hah. Canada, Alberta, Calgary {Wolley-Dod), 1 J , Br. Columbia, 

 Upper Keremeos {Mrs. Nicholl), 1 $ ; U.S.A., Massachusetts, 1 c? , 

 Colorado (Bruce), 1 iS • Exjj. 40-42 millim. 



2922, Trachea leucodon. 



Hadena leucodon, Bv. Bull. Soc. Mosc. 1837, p. 37 ; Frr. Neue Beitr. iv. 

 pi. 359. f. 1 ; Dup. Lep. Fr., Suppl. iii. p. 32.i, pi. 30. f. 2; Herr.- 

 Schaff. Eur. Schmett., Noct. f. 51 ; Staud. Oat. Lep. pal. p. 173. 



Hadena bidens, Ev. Bull. Soc, Mosc. 1852, i. p. 153 & 185(i, ii. pi. 2. f. 4. 



Head and thorax grey-white mixed with pale brown ; frons with 

 lateral blackish bars ; patagia with slight blackish line near upper 

 edge ; tarsi black ringed with white ; abdomen grey-white. Pore 

 wing white suffused with reddish brown and with slight dark 

 irroration, leaving some pure white on inner margin, above vein 1 

 near base, beyond the postmedial line towards inner margin, and 

 at apex, the veins with slight dark streaks ; subbasal line repre- 

 sented by a black striga from costa defined by white on outer side 

 and Avith a white mark beyond it in cell ; a slight oblique blackish 

 streak above inner margili before the antemedial line, which is 

 blackish defined by white on inner side, sinuous and diffused from 

 costa to submedian fold, then strongly excurved and retracted to 

 inner margin ; claviform small, defined by black, with whitish 

 dentate mark beyond it ; orbicular and reniform with white annuli 

 defined bj^- black, the former small, elongate elliptical, the latter 

 narrow; traces of a medial line towards costa ; postmedial line black 

 defined by white on outer side, double at costa, bent outwards below 

 costa, oblique to vein 5, then inwardly oblique and slightly sinuous, 

 some white points beyond it on costa ; subterminal line white, 

 defined on inner side by small dentate blackish marks between 

 veins 6 and 1, angled outwards at vein 7, dentate to termen at 

 veins 4, 3, then incurved ; a terminal series of small black lunules; 

 cilia intersected with white. Hind wing pale suffused with reddish 

 brown, the terminal area darker; a faint discoidal spot and curved 

 postmedial line ; cilia pure white, with slight brown medial line 

 from costa to vein 2 ; the underside white, the costal area irrorated 

 with brown, a discoidal spot, curved postmedial line, and diffused 

 subterminal band. 



Hab. Etjssia, Sarepta, Zeller and Crowley Colls, ; Kttkdistan, 

 Malatra ; W, Turkestan, Ferghana, Issyk Kul ; W. Siberia, Altai ; 

 Mongolia, Urga ; E, Siberia, Dahuria. Ea^. 38-42 millim. 



2923, Trachea cinefacta, (Plate CXII. fig, 4,) 



Hadena cinefacta, Grote, Papilio, i. p. 76 (1881) ; Smith, Cat. Noct. N. 

 Am. p. 140. 



Bead and thorax bluish white mixed with pale brown ; frons with 

 black bar ; tegulae with medial black line ; patagia with blackish 

 lines near edges ; tarsi blackish with pale rings ; abdomen grey 



