258 MISC. PUBLICATION 42 4, IT. S. DEPT. OF AGRICULTURE 



Figure 23. — Asterolecanium euphorbiae: A, genital and anal area, X 330. A. 

 euryopis: B, tubular duct; C, outline, X 60; D, E, 8-shaped pores; F, multi- 

 locular pore ; G, H, spiracular rnultilocular and quinquelocular pores, respec- 

 tively ; /, genital and anal area, X 230; J, antenna. A. exlguum: K, genital 

 and anal area, X 650 ; L, tubular duct ; M, rnultilocular pore ; N, quinqueloc- 

 ular pore. 



