Leptusa (Adexiopisalia) hummleriana BERNHAUER 1935

Assing, V., 2014, On the Staphylinidae of Sardinia, Italy (Insecta: Coleoptera), Linzer biologische Beiträge 46 (1), pp. 415-428 : 422-423

Leptusa (Adexiopisalia) hummleriana BERNHAUER 1935 ( Figs 17-20 )

Leptusa hummleriana BERNHAUER 1935: 129 .

Leptusa sardoa BERNHAUER 1935: 129 .

T y p e m a t e r i a l e x a m i n e d L. hummleriana : Paralectotypes: 666, 1♀: "Aritzo, Sardinia / ex coll. Scheerpeltz / Cotypus Leptusa Hummleriana Bernhauer / Paralectotypus Leptusa hummleriana Bernhauer , rev. V. Assing 2013 / Leptusa hummleriana Bernhauer , det. V. Assing 2013" (NHMW); 266: "Aritzo, Sardinia / ex coll. O. Kaiser / ex coll. Scheerpeltz / Cotypus Leptusa sardoa Bernhauer / Paralectotypus Leptusa hummleriana Bernhauer , rev. V. Assing 2013 / Leptusa hummleriana Bernhauer , det. V. Assing 2013" (NHMW).

L. sardoa : Paralectotypes: 16, 4♀♀: "Mte. Aqueri, Sardinia / ex coll. Scheerpeltz / Cotypus Leptusa sardoa Bernhauer / Paralectotypus Leptusa sardoa Bernhauer , rev. V. Assing 2013 / Leptusa hummleriana Bernhauer , det. V. Assing 2013" (NHMW); 16, 3♀♀: "Dorgali, Sardinia / ex coll. Scheerpeltz / Cotypus Leptusa sardoa Bernhauer / Paralectotypus Leptusa sardoa Bernhauer , rev. V. Assing 2013 / Leptusa hummleriana Bernhauer , det. V. Assing 2013" (NHMW).

A d d i t i o n a l m a t e r i a l e x a m i n e d Italy S a r d i n i a 1♀, Monti del Gennargentu, 6 km S Fonni, 40°03'31''N, 9°15'29''E, 1100 m, oak forest, litter sifted, 26.XII.2012, leg. Assing (cAss); 1666, 1♀♀, Monte Arci , 12 km NE Terralba, Genna Spina, 39°48'07''N, 8°44'43''E, 710 m, oak forest, litter sifted, 27.XII.2012, leg. Assing (cAss, MNHUB) ; 1466, 7♀♀, 30 km W Nuoro, Catena del Márghine, 4 km N Bolótana, 40°21'25''N, 8°55'14''E, 1000 m, oak forest, leaf litter sifted, 30.XII.2012, leg. Assing (cAss, MNHUB) ; 1♀, Seui, 7.V.1902, leg. Dodero (NHMW); 16, Seui, leg. Dodero (NHMW); 16, Mte. Gennargentu, Aritzo, leg. Krüger (NHMW).

C o m m e n t: The original description is based on several syntypes ("in mehreren Stücken") collected in " Sardinien (Aristo)" by "Gustav Hummler-Paganetti" ( BERNHAUER 1935). A lectotype was designated by PACE (1989). The type series of L. sardoa is from " Sardinien (Dorgali, Mte. Aqueri" ( BERNHAUER 1935). PACE (1979) synonymized L. sardoa with L. hummleriana and in referring to the type specimen from the Bernhauer collection as "il tipo" unintentionally designated a lectotype.

In the collections of the NHMW, eleven specimens labelled as cotypes of L. hummleriana and seven labelled as cotypes of L. sardoa were found. However, some of them had evidently been mislabelled by Scheerpeltz. Four of the specimens labelled as cotypes of L. hummleriana are from Dorgali and consequently paralectotypes of L. sardoa , and two of the specimens labelled as cotypes of L. sardoa are from Aritzo and thus represent paralectotypes of L. hummleriana .

Leptusa hummleriana is remarkably widespread in Sardinia and has been reported from various localities both in the north and in the south of the island. For additional records see PACE (1989). The shape of the aedeagus varies slightly between populations, but the observed differences ( Figs 17-20 ) are interpreted as intra- rather than interspecific variation.

Figures

Figs 11-20: Leptusa meybohmi nov.sp. (11-16) and L. hummleriana BERNHAUER (17-20; 17: paralectotype of L. hummleriana; 18: paralectotype of L. sardoa from Dorgali; 19: male from Catena del Márghine; 20: male from Monte Arci): (11) habitus; (12) forebody; (13) male tergite VIII; (14) male sternite VIII; (15-20) median lobe of aedeagus in lateral view. Scale bars: 11: 1.0 mm; 12: 0.5 mm; 13-14: 0.2 mm; 15-20: 0.1 mm.