FIGURES 16­21 in A revision of Nearctic species of the genus Tropimenelytron Pace, 1983 (Coleoptera: Staphylinidae: Aleocharinae), a new genus for North America

FIGURES 16­21. Male genitalia of Tropimenelytron americanum Gusarov, sp. n. (paratypes from Rensselaerville, New York (16­18) and Morgan Monroe State Park, Indiana (21)) and T. tuberiventre (Eppelsheim)(Polikesh, Azerbaijan (19­20)). 16 – everted internal sac of aedeagus, lateral view; 17 – medial lamellae, parameral view; 18 – copulatory piece, parameral view; 19 – apex of everted internal sac, lateral view; 20 – apex of everted internal sac, parameral view; 21 – internal sac retracted in median lobe, parameral view. CP ­ copulatory piece; ML ­ medial lamellae. Scale bar 0.1 mm.