FIGURES 20–25 in Review of the Nearctic species of Drusilla Leach (Coleoptera: Staphylinidae: Aleocharinae)

FIGURES 20–25. Details of Drusilla nearctica (20–23) and D. ashei (24–25). 20) tergite VIII; 21) sternite VIII; 22) female genital segments (tergites IX and X), showing genital plate and spermathecal duct, dorsal; 23) spermatheca; 24) male genital segments (sternite IX and tergites IX and X), dorsal; 25) detail of sternite IX, ventral. Scale bars (0.1 mm): I = 20–22, 24–25.