248 MISC. PUBLICATION" 42 4, U. S. DEPT. OF AGRICULTURE 



Figure 13. — Aster olecanium caudatum: A, outline, X 87; B, section of margin 

 and ventral submarginal area, X650; C, genital and anal area, X 460; D, 

 antenna ; E, marginal 8-shaped pore ; F, dorsal 8-shaped pore. A. ceriferum 

 ceriferum: G, outline, X 115 ; H. genital and anal area, X 230 ; /, splrable ; J, 

 marginal 8-shaped pore ; K, ventral 8-shaped pore ; L, section of margin, X 

 750; M, antenna. 



