298 MISC. PUBLICATION 42 4, U. S. DEPT. OF AGRICULTURE 



Figure 63. — Aster olecanium semisepultuni: A, outline, X 120; B, section of mar- 

 gin, X 650; C, genital and anal area, X 460; D, 8-shaped pore; E, antenna. 

 A. simile: F, antenna ; G, spiracle ; H, outline, X 87 ; /, genital and anal area, 

 X 650; J, section of margin, X 650; K, 8-shaped pore; L, tubular duct; M, 

 minute dorsal 8-shaped pore ; N, submarginal 8-shaped pore ; O, disk pore. 



