Atheta (Dimetrota auct.) prudhoensis, 2002

Gusarov, Vladimir I., 2003, Revision of some types of North American aleocharines (Coleoptera: Staphylinidae: Aleocharinae), with synonymic notes, Zootaxa 353 (1), pp. 1-134 : 39-40

Atheta (Dimetrota auct.) prudhoensis (Lohse in Lohse et al. 1990)

( Figs. 143–145 , 148– 151 in Lohse et al. 1990)

Dimetrota prudhoensis Lohse in Lohse et al., 1990: 182.

Dimetrota dempsterensis Lohse in Lohse et al., 1990: 181, syn. nov.

Atheta (Dimetrota) prudhoensis: Klimaszewski & Winchester, 2002: 30 .

Type material. Holotype of Dimetrota prudhoensis : ♂, UNITED STATES: Alaska: Prudhoe Bay Rd., Bonanze Cr., 900', 150º40' 66º40' (A.Smetana & J.M.Campbell), 2.vii.1978 ( CNCI).

Holotype of Dimetrota dempsterensis : ♂, CANADA: Yukon Territory: Dempster Hwy. Mi. 75, 3400' (A.Smetana & J.M.Campbell), 23.vii.1978 ( CNCI).

Additional material: UNITED STATES: New York: Orange Co.: 10 specimens, 8 km S New Windsor, Black Rock Forest, 23–25.v.1998 (V.I.Gusarov) ( SPSU); Vermont: Windsor Co.: ♀, 8 km SEE Springfield, Hwy. I­91, 43º14.00'N 72º26.81'W, 250m, forest litter, Acer , Betula , Quercus , Tsuga , 21.ix.1998 (V.I.Gusarov) ( SPSU).

Diagnosis. See Lohse et al. (1990).

Discussion. The holotype of Dim. prudhoensis is similar to the holotype of Dim. dempsterensis in both external characters and the shape of the aedeagus, including the structures of the internal sac.

Distribution. Atheta prudhoensis seems to be widespread in the northern Nearctic Region but its distribution is poorly documented. It is known from Alaska, Yukon Territory, Vermont and New York.

Figures

FIGURES 142–146. Abdominal segment 8 of Strigota ambigua (Erichson) (male, paralectotype of St. gnava Casey (142–144); and female, lectotype of St. oppidana Casey (145–146)). 142 — male tergum 8; 143 — male sternum 8; 144 — apex of male sternum 8, dorsal [sic!] view; 145 — female tergum 8; 146 — female sternum 8. Scale bar 0.1 mm (144), 0.2 mm (142–143, 145–146).

FIGURES 147–154. Genitalia of Strigota ambigua (Erichson) (male, paralectotype of St. gnava Casey (149–154); and female, lectotype of St. oppidana Casey (147–148)). 147–148 — spermatheca (of the same specimen; different views); 149 — median lobe, parameral view; 150 — apex of median lobe, parameral view; 151 — median lobe, lateral view; 152 — apex of median lobe, lateral view; 153–154 — apex of median lobe with retracted internal sac, lateral view. Scale bar 0.1 mm (150, 152), 0.2 mm (147–149, 151, 153–154).