A revision of Nearctic species of the genus Geostiba Thomson, 1858 (Coleoptera: Staphylinidae: Aleocharinae)
Gusarov, Vladimir I.
Zootaxa
2002
81
1
88
8VRPP
[818,924,510,536]
Insecta
Staphylinidae
Geostiba
Animalia
Coleoptera
14
15
Arthropoda
genus
1 In males pronotum with one medial tubercle at posterior margin; each elytron with a tubercle near scutellum but not atthe elytral suture; abdominal tergum 7 with one short medial carina in front of posterior margin. Posterior margin of female sternum 8 distinctly convex, without medial emargination. Aedeagus: Figs. 13in Assing (2001). Spermatheca: Fig. 4in Assing (2001). Body length 2.32.8 mm, pronotal width 0.430.53 mm. Introduced from Europe to Newfoundland ( Fig. 336) ................ ......................................................................... 15. G.( s. str.) circellaris(Gravenhorst).