Fig. 



hi. 



Fig. 



112. 



Fig. 



"3- 



Fig. 



114. 



Fig. 



"5- 



Fig. 



116. 



Fig. 



117. 



PLATE 19 



Selenarctia elissa, $, left tymbal organ ( x 17). 



5. elissa, <$, central part of left tymbal showing microtymbals, hair-scale sockets, 



and three hair-scales (x 104). 



S. elissa, $, base of microtymbal hair-scale ( x 1 70 1 ) . 



5. elissa, <§, dorsal surface. 



S. elissa, £, aedeagus. 



S. elissa, <j>, genitalia. 



5. elissa, <J, genitalia. 



