FIGURE 21 in Feather mites of the genus Trouessartia Canestrini (Acariformes: Trouessartiidae) from swallows (Passeriformes: Hirundinidae) in Canada

FIGURE 21. Trouessartia species, details of females. Trouessartia crucifera: A—dorsal hysterosoma, B—spermatheca and spermaducts; T. quarta: C—dorsal hysterosoma, D—spermatheca and spermaducts; T. ripariae: E—dorsal hysterosoma, Fspermatheca and spermaducts, G—area with distal end of primary spermaduct, ventral view. Abbreviations: co—copulatory opening, dp—distal bend of primary spermaduct, pd—primary spermaduct, vb—vertical bend of primary spermaduct.