204 



THE BIOLOGY OF INSECTS 



QOO 



qM 





Fig. 56. — Scent-apparatus of male Amauris ntavius. a, scales of 

 general wing-area; b, scales of glandular patch, X 160. c, scales (out- 

 line dotted) in relation to perforated chitinous projections, X 350. 

 d, section through wing showing upper (s') and lower (s) scales and 

 glands C?), X 450. e section of abdominal " brush " showing filaments 

 arising from cells, and retractor muscle (w), X 100. /, cells of brush 

 with bases of filaments, X 200. 5-, fragments of filaments, X 700. After 

 H. Eltringham, Trans. Ent. Soc, 191 3. 



