4 AKCXIAD-S. 



B, Hind wing with vein 4 present. 



a. Hind wing with veins 0, 7 coincident. 



a\ Fore wing with veins 4, 5 stalked CissuRA, p. 70. 



b^. Fore wing with veins 4, 5 from cell. 

 a^. Hind wing with vein 8 stalked with 7, rarely 

 obsolete. 



rv'. Proboscis aborted, minute Eueuythua, p. 254. 



ft3. Proboscis fully developed Melese, p. 72. 



fr-. Hind wing with vein 8 from the cell Bertholdia, p. 78. 



b. Hind wing with veins 6, 7 not coincident. 

 a}. Fore wing with vein 11 stalked with 10. 



ci^. Fore wing with veins 10, 11 stalked from 



7, 8, 9 Syntarctia, p. 98. 



b'^. Fore wing with veins 10, 11 stalked from cell. 



«■ 



Hind wing with vein S absent Carathis, p. 95. 



f^. Hind wing with vein 8 present, 

 a*. Fore wing with vein 6 from upper angle of 



cell or stalked with 7, 8, 9 Pack ydota , p. 92. 



6*. Fore wing with vein 6 from below angle of 



cell Baritius, p. 99. 



c^. Fore wing with vein 10 from 11 anastomosing ^Ct ', 



with 7, 8, 9 to form the areole T yria, p.]^185. 



b^. Fore wing with vein 11 from the cell. 

 a". Both wings with vein 6 from or from close to 

 angle of cell. 

 a^. Fore wing with veins 7 and 10 stalked ; 



8, 9 absent Arctagyrta, p. 173. 



*b^. Fore wing with veins 7, 8, 9, 10 stalked. 

 «■*. Proboscis more or less aborted, 

 a'. Hind tibije with the medial spurs absent. 

 a^. Fore tibifc with curved apical claw. 

 a' . Head with corneous jirocess on vertex . Acantharctia, p. 321, 

 h'' . Head without corneous process on 

 vertex. 

 a^. Head and thorax clothed with rough 

 hair. 



ft". Eyes small Ocnogyna, p. 225. 



¥. Eyes large Hypuantria, p. 335. 



h'*. Head and thorax smoothly scaled Amsacta, p. 322. 



b''\ Fore tibias without apical claw. 



a'. Eyes hairy Leptarctia, p. 220. 



b''. Eyes smooth. 

 aJ^. Head and thorax clothed with rough 



woolly hair ALenas, p. 247. 



6*. Head and thorax smoothly scaled, 

 a". Fore wing narrow ; abdomen 



smoothly scaled at base Creatonotus, p. 331. 



6°. Fore wing broad ; abdomen with 



some rough hair at base of dorsum . Ecpantheria, p. ''365. 

 ¥. Hind tibiss with the medial spurs present. 



ft*'. Fore tibise with curved apical claw Estigmene, p. 338. 



b^. Fore tibite without apical claw, 

 ft'. Eyes hairy. 



ft*. Eyes small Hvphoraia, p. 222. 



¥. Eyes large Ardices, p. 245. 



b''. Eyes smooth, 

 ft^. Thorax clothed with rough woolly hair. 

 ft^. Eyes small, 

 ft'". Thorax and abdomen clothed with 



very long hair Laor«, p. 225. 



* 



In the male of Tricypha vein 10 is from the cell. 



