Seeversiella badia Gusarov

Gusarov, Vladimir I., 2003, A revision of the genus Seeversiella Ashe, 1986 (Coleoptera: Staphylinidae: Aleocharinae), Zootaxa 142, pp. 1-102 : 43-45

11. Seeversiella badia Gusarov , sp. n. ( Figs. 150­160 )

Type material. Holotype ,, EL SALVADOR: Santa Ana: Montecristo, 21.7 km NE Metapan, 2100 m, cloud forest litter (R.S.Anderson), 29.viii.1994 ( KSEM).

Paratypes: EL SALVADOR: Santa Ana: 2, same data as the holotype (all ­ KSEM).

Diagnosis. Seeversiella badia can be distinguished from other species of Seeversiella by having brown body; temples 1.7­2.0 times as long as eyes; glossy pronotum with weak isodiametric microsculpture; elytra as long as pronotum; tergum 8 with four pairs of macrosetae; the distinct shape of aedeagus ( Figs. 154­159 ) and spermatheca ( Fig. 160 ).

Seeversiella badia differs from closely related S. similis in that the apex of median lobe in lateral view is emarginate on parameral side ( Figs. 156­157 ; 167­168).

Seeversiella badia can be distinguished from S. globicollis and the other similar species (3, 5­8, 10) 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 small spicules ( Fig. 158 ); apex of median lobe in lateral view widened subapically and emarginate on parameral side ( Figs. 156­157 ); spermatheca Sshaped with umbilicus facing laterally ( Fig. 160 ).

Description. Length 2.5 mm, pronotal width 0.50­0.53 mm. Body brown to dark brown with lighter elytra, legs brown to yellowish brown.

In all character states S. badia 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 tergum 3 projecting as spines, as long as tergum 3 (measured medially), tergum 7 with medial carina along midline, the carina up to 2/3 as long as tergum length.

Aedeagus as in Figs. 154­159 .

Spermatheca as in Fig. 160 .

Distribution. Known from El Salvador ( Fig. 387 ).

Natural History. Seeversiella badia was collected in cloud forest litter at altitude of 2100 m.

Figures

FIGURE 387. Geographical distribution of Seeversiella from Mexico to Honduras.

FIGURES 150 ­ 153. Abdominal segment 8 of Seeversiella badia Gusarov, sp. n. (150 ­ 151, holotype; 152 ­ 153, paratype, 21.7 km NE Metapan, El Salvador). 150 – male tergum 8; 151 – male sternum 8; 152 – female tergum 8; 153 – female sternum 8. Scale bar 0.2 mm.

FIGURES 154 ­ 160. Genitalia of Seeversiella badia Gusarov, sp. n. (154 ­ 159, holotype; 160, paratype, 21.7 km NE Metapan, El Salvador). 154 – median lobe, parameral view; 155 – apex of median lobe, parameral view; 156 – median lobe, lateral view; 157 – apex of median lobe, lateral view; 158 – details of internal sac retracted into median lobe, lateral view; 159 – apex of left paramere; 160 – spermatheca. Scale bar 0.2 mm (154, 156, 158), 0.1 mm (155, 157, 159 ­ 160).