Proteinus hamatus, Assing, 2007

Assing, Volker, 2007, Proteinus crenulatus - a complex of five species (Coleoptera: Staphylinidae: Proteininae), Beiträge Zur Entomologie = Contributions to Entomology 57 (2), pp. 355-366 : 365

publication ID	https://doi.org/ 10.21248/contrib.entomol.57.2.355-366
persistent identifier	https://treatment.plazi.org/id/8F7487AC-F122-5D06-7B09-29DBFC8193A9
treatment provided by	Felipe
scientific name	Proteinus hamatus
status	sp. nov.

Treatment

Proteinus hamatus View in CoL sp. n. ( Figs 20-21 View Figs 12-21 , Map 2 View Map 2 )

Type material:

Holotype ♂: "E - No. 13, Castilla-Leon , Sierra de Urbión, Peña Negra, 1950-2000 m, 42°03N, 02°46W, 15.X.2003, V. Assing / Holotypus ♂ Proteinus hamatushamatus sp. n. det. V. Assing 2007" (cAss) GoogleMaps . Paratypes: 2 ♂♂, 1 ♀: "E - No. 19, Castilla-Leon, 40 km ESE Burgos, Trigaza, 1950 m, 42°15 '25N, 03°14 ' 58W, 17.X.2003, P. Wunderle " (cWun, cAss) GoogleMaps ; 1 ♂: "E - No. 22, 40 km E Teruel , Sierra de Gúdar, path -> Peñarroya, 1890 m, 40°23 '34N, 00°39 '09W, 13.IV.2003, P. Wunderle " (cWun) GoogleMaps ; 2 ♂♂, 3 ♀♀: " France, Pyrénées-Orientales , La Preste, entée [sic] grotte En Brixtot, litière, M. Tronquet, 19.VI.2006 " (cTro, cAss) ; 1 ♂: " Spain, La Granja / Proteinus crenulatus / Coll. G. A. Lohse MHNG - 1994" ( MHNG) .

Description:

2.2-2.7 mm (abdomen extended); width of pronotum: 0.60-0.75 mm. Coloration and other external characters as in P. crenulatus , distinguished only as follows:

Pronotum slightly more transverse, 1.65-1.75 times as wide as long.

♂: secondary sexual characters as in P. crenulatus . Aedeagus larger than in P. crenulatus , approximately 0.48 mm long; ventral process apically longer and more abruptly bent; dorsal plate larger and more strongly curved in lateral view; internal sac with very short flagellum and with additional rather large and dark membraneous structure ( Figs 20-21 View Figs 12-21 ).

Etymology: The name (Latin, adjective: hooked, hook-like) refers to the shape of the apex of the aedeagus.

Comparative notes:

From the other species of the P. crenulatus group, this species is distinguished by the larger aedeagus with an abruptly bent apex and internal structures of distinctive shape.

Distribution and bionomics:

The known distribution of this species is confined to southwestern France and northern Spain ( Map 2 View Map 2 ); the locality "La Granja" is ambiguous and omitted from Map 2 View Map 2 . The type specimens were collected in June and October, those taken by Paul Wunderle and myself were sifted from the litter below old pine trees at altitudes of 1890-2000 m.