A revision of the genus Seeversiella Ashe, 1986 (Coleoptera: Staphylinidae: Aleocharinae) Author Gusarov, Vladimir I. text Zootaxa 2003 142 1 102 journal article 51371 10.5281/zenodo.156420 76c096e3-d27c-4abc-a504-a62ae8c7ba92 1175­5326 156420 7. Seeversiella tuberculicauda Gusarov , sp. n. ( Figs. 105­116 ) Type material. Holotype ,, MEXICO : Veracruz: 2.3 km S Jalapa, 1320 m , streamside litter (J.S.Ashe), 13.vii.1992 ( KSEM ). Paratypes : MEXICO : Veracruz: , same data as the holotype ( KSEM ). Diagnosis. Seeversiella tuberculicauda can be distinguished from other species of Seeversiella by having brown body; temples 1.2 times as long as eyes; glossy pronotum with weak isodiametric microsculpture; elytra longer than pronotum; wings fully developed; tergum 8 with four pairs of macrosetae; the distinct shape of aedeagus ( Figs. 110­ 115 ) and spermatheca ( Fig. 116 ). Seeversiella tuberculicauda can be distinguished from S. globicollis and the other similar species (3, 5­6, 8, 10­12) with long elytra and weak pronotal microsculpture by the combination of the following characters: distal sclerites of internal sac poorly sclerotized, not dentiform or hook­shaped and have weak spicules ( Fig. 114 ); apex of median lobe in lateral view widened subapically and not emarginate on parameral side ( Figs. 112­113 ), in parameral view wide ( Figs. 110­111 ); spermatheca L­shaped with small umbilicus and straight proximal portion ( Fig. 116 ). FIGURES 105­108 . Abdominal segment 8 of Seeversiella tuberculicauda Gusarov , sp. n. (105­ 106, holotype; 107­108, paratype from Jalapa, Mexico). 105 – male tergum 8; 106 – male sternum 8; 107 – female tergum 8; 108 – female sternum 8. Scale bar 0.2 mm. Description. Length 2.4 mm , pronotal width 0.49 mm . Body dark brown, legs brown. In all external character states S. tuberculicauda is very similar to S. globicollis , but differs in the shape of the aedeagus and spermatheca as described in the diagnosis. In the only known male specimen the posterior angles of male tergum 3 projecting as spines twice as long as tergum 3 (measured medially), tergum 7 in basal third with medial tubercle. Aedeagus as in Figs. 110­115 . Spermatheca as in Fig. 116 . Distribution. Known from Mexico ( Fig. 387 ). Natural History. Seeversiella tuberculicauda was collected in streamside litter at altitude of 1320 m .