178 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XVII. 



Habitat — Europe ; W. Asia ; W. Turkistan. Exp. 36-40 mill. 



Subspecies, conspurcata. Frr. Neue. Beitr. Schmett., V., p. 82, pi., 433, f. 3 

 (1844); Herr. Schfiff. Eur. Schmett. Noct. ff. 463-470 ; 

 Staud. Cat. Lep. pal, p. 162. 



Head, thorax and forewing grey-brown without the rufous tinge, the last 

 with the claviform reduced to a small black mark, the orbicular oblique 

 elliptical, the reniform slightly angled inwards on median nervure, but not on 

 subcostal nervure. 



Habitat— C. and S. Russia, Urals ; W. Siberia, Altai ; ? E. Siberia ; 

 Punjab, Hunza. 



Larva, Wallschlegel, Stett. Ent. Zeit, XXXII, p. 466. 



Pale reddish grey with a dark maculate dorsal stripe, oblique subdorsal 

 marks and pale lateral line. Food plant : Silene nutans. 8'9. 



Genus Odontestra. Type. 



Odontestra, Hmpsn. Cat. Lep. Phal. B. M., Y., p. 205 (1905) vittigera. 



Proboscis fully developed ; palpi short, oblique, fringed with hair in front ; 

 frons with rounded prominence with small corneous plate below it ; eyes large, 

 rounded ; antennas of male ciliated ; head and thorax clothed chiefly with 

 6cales, pro- and metathorax with spreading crests; abdomen with dorsal crest 

 on 1st segment only. Forewing rather short and broad, the termen evenly 

 curved ; veins 3 and 5 from near angle of cell, 6 from upper angle ; 9 from 1 

 anastomosing with 8 to form the areole ; 11 from cell. Hindwing with veins 

 3*4 from angle of cell ; 5 obsolescent from middle of discocellulars ; 6'7 from 

 upper angle or shortly stalked ; 8 anastomosing with the cell near, base only. 



A. Forewing with the terminal line narrow, whitish. 



a. Hindwing white, the terminal area suffused with 



fuscous ... simillima. 



b. Hindwing uniformly suffused with fuscous potanini. 



B. Forewing with the subterminal line broader, yellowish suomarginalis. 

 1687. Odontestra simillima. 



1687a. Odontestra potanini, Alph. Iris., VIII, p. 192 (1895) ; id. Rom, 



Mem., IX , p. 137, pi. IX., f. 10 (1897). 



Head and thorax irro rated with grey ; tegulse with black medial line ; 

 patagia edged with black above ; tarsi with pale rings ; abdomen fuscous 

 brown. Forewing purple-grey ; the costal area suffused with purplish 

 red except towards base ; the inner margin with ochreous white fascia from 

 base to tornus ; subbasal line represented by double strise from costa and a 

 black patch below the cell crossed by an oblique ochreous striga ; antemedial 

 line double, dentate towards costa, usually filled in with ochreous in submedian 

 interspace, obsolete below vein 1 ; claviform very large, filled in with black ; 

 vein 2 defined by an ochreous white fascia below or on both sides to just 

 beyond postmedial line ; orbicular and reniform with ochreous annuli defined 

 by black, the former ve-y small, round or oblique elliptical, the latter with 

 ochreous centre and angled inwards on median nervure ; postrceuial line 



