OXYAMBULYX. 



113 



or violet before pupation, and the larva then jumps violently 

 when touched by bending the head round to the anal segments 

 on one side and then suddenly to the other side. Pupation 

 in an ovoid cell underground. The moths are seldom seen 

 on the wing, and little is known of their habits. 



Hab. Widely distributed from the Palaearctic Region to the 

 Philippines. Fifteen Indian species and subspecies. 



Key to the Species and Subspecies. 



Imagines. 



1. Fore wing upperside with three or four 



subbasal spots behind cell 2. 



Fore wing upperside with less than three 

 subbasal spots 3. 



2. Olive-green band on thorax about 1 mm. 



broad in middle ; abdomen without [p. 136. 



dorsal line in either sex O. subocellata (Feld.), 



Band on thorax broader ; three subbasal 

 spots on fore wing besides a spot in the 



cell ; upperside whitish-grey ; abdomen [p. 135. 



without dorsal line in either sex 0. c. canescens (Walk.). 



3. Fore wing ground-colour yellow ; a round 



subbasal costal spot and one large sub- 

 basal spot behind cell ; abdomen with- 

 out dorsal line (eighth tergite of <$ ex- [p. 124. 



cepted) O. ochracea (Butl.), 



Fore wing ground-colour not yellow 4. 



4. Fore wing usually with no subbasal costal 



spot ; abdomen with dorsal line in both 

 sexes ; no patch on eighth tergite in $ . . 5. 

 Fore wing with a round subbasal costal 

 spot 8. 



5. Basal patch of hind wing upperside black 



or tawny 6. 



Basal patch of hind wing less tawny and 

 never black 7. 



6. Fore wing with submarginal line on upper 



and lower sides ; subbasal costal spot [Jord., p. 128. 



sometimes present O. siibstrigilis aglaia 



7. Fore wing with submarginal line absent [(Moore), p. 127. 



below O. s. auripennis 



Fore wing with submarginal line present 

 below 8. 



8. Fore wing with submarginal line more 



proximal posteriorly than in 0. s. sub- [p. 125. 



strigilis 0. I. liturata (Butl.), 



Fore wing with submarginal line less 

 proximal posteriorly than in 0. I. [(Westw.), p. 131. 



liturata 0. s. substrigilis 



9. Fore wing underside with no submarginal 



line ; abdomen with dorsal line and 



a patch on eighth tergite in $ (9 not [p. 123. 



known) 0. lahora (Butl.), 



Fore wing underside with no submarginal [Kaye, p. 139. 



line ; abdomen without a dorsal line. O. cyclasticta Joicey & 

 Fore wing underside with a brown sub- 

 marginal line 10. 



VOL. V. I 



