ODONTESTKA. 



205 



Genus ODONTESTRA, uov. 



Type, 0. vittigera. 



Proboscis fully developed ; palpi sboi't, oblique, fringed with hair in front ; 

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

 large, rounded ; antennne of male ciliated ; head and thorax clothed chiefly 

 with scales, the pro- and metathorax with spreading crests ; abdomen with 

 dorsal crest on Ist segment only. Fore wing rather short and broad, the 

 ternien evenly curved ; veins 3 and 5 from near angle of cell ; 6 from upper 

 angle ; 9 from 10 anastomosing with 8 to form the areole; 11 from cell. Hind 

 wing with veins 3, 4 from angle of cell ; b obsolescent from middle of disco- 

 cellulars, B, 7 from upper angle or shortly stalked ; 8 anastomosing with the 

 cell near base only. 



A. Fore wing without whitish streak below vein 2 vittigcra. 



B. Fore wing with whitish streak below vein 2. 



a. Fore wing without M'hitish fascia on inner margin albivitta. 



b. Fore wing with whitisli fascia on inner margin. 



a? . Fore wing with the subteruiinal line narrow, whitish. 

 «'-. Hind wing white, the terminal area suflused with 



fuscous simiUima. 



/*-. Hind wing uniformly suffused with fuscous potanini. 



i'. Fore wing with the subterminal line broader, 



yellowish submargincdls. 



1419. Odontestra vittigera. 



Mamestra vitfigera, Hmpsn. Ann. S. Afr. Mus. ii. p. 266 (1902). 



c5' . Head and thorax purplish fuscous mixed with grey and red ; 

 tarsi with pale rings ; abdomen ochreous, the ventral surface dark 

 brown. Fore wing purplish fuscous, the medial area more or less 

 tinged with purplish pink ; subbasal line represented by pink striae 

 from costa and cell, with diffused black on each side of them ; ante- 

 medial line double, filled in by brown, curved; claviform large, 



Fig. 28. — Odontestra vittigera, (^ . \. 



filled in with black ; orbicular usually obsolete, sometimes a small 

 round ochreous spot ; reniform large, ochreous white defined by 

 black and with rufous centre, some blackish suftusion before ajid 

 beyond it ; an ochreous-whitc fascia on medial part of inner margin ; 

 postmedial line double, filled in with ochreous, minutely dentate, 

 bent outwards below costa and oblique below vein 4 ; suhtcrininal 

 line ochreotxs, defined by dentate black marks on inner side, angled 

 outwards at vein 7 and dentate at veins 4, 3 ; an apical ochreous 

 patch ; a terminal scries of small black lunulos ; cilia intersected 



