Proteinus tronqueti, 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 : 364

Proteinus tronqueti sp. n. ( Figs 18-19 , Map 2 )

Type material:

Holotype ♂: " Forêt Valdo-Niello [= Forêt de Valdu-Niellu, ca. 42°18 'N, 8°55 'E], 24.V.1972, M. Tronquet / au vol le soir / Holotypus ♂ Proteinus tronqueti sp. n. det. V. Assing 2007" (cAss) . Paratypes: 2 ♂♂, 2 ♀♀: same data as holotype (cTro, cAss) ; 2 ♀♀: same data, but " 25.5.1972 "(cTro) ; 1 ♂: "Zicavo (20), 31.5.72, M. Tronquet / au vol entre B. d. Cosciones e Col de Verde 17h" (cAss) ; 1 ♂: "Vizzavona, Corsica, Psudka, IX.07 / limbatus ♂ Mäkl. / Coll. Mus. Vindob. " ( NHMW) ; 3 ♀♀: " Corsica, Vizzavona, Coll. O. Leonhard / Prot. limbatus / Hubenthal det. / Proteinus crenulatus Pand. " ( DEI, cAss) .

Description:

Body length 2.1-2.5 mm (abdomen extended); width of pronotum 0.6-0.7 mm; pronotum 1.60- 1.70 times as wide as long. External morphology, including the male secondary sexual characters, as in P. crenulatus ; distinguished only by the morphology of the aedeagus.

♂: aedeagus 0.41-0.43 mm long; ventral process weakly bulging in lateral view and apically weakly curved; dorsal plate small and weakly bent in lateral view; flagellum moderately long, straight, slightly shorter and less slender than in P. crenulatuscrenulatus ( Figs 18-19 ).

Etymology: The species is dedicated to Marc Tronquet, who collected most of the type specimens.

Comparative notes:

From all other species of the P. crenulatuscrenulatus group, P. tronquetitronqueti is reliably distinguished only based on the morphology of the aedeagus, especially the apically weakly curved ventral process (lateral view) and the small dorsal plate.

Distribution and bionomics:

The distribution of this species appears to be confined to Corsica ( Map 2 ). Most of the type specimens were collected on the wing in May. One paratype was taken in September .

Figures

Map 2: Distributions of Proteinus abditus sp. n. (open squares), P. angulatus sp. n. (filled squares), P. hamatustus sp. n. (open circles), and P. tronqueti sp. n. (filled circles) in Europe.

Figs 12-21: Proteinus abditusabditus sp. n. (12), P.angulatusangulatus sp. n. (13-17), P. tronquetitronqueti sp. n. (18-19), and P. hamatus sp. n. (20-21): apical part of aedeagus in lateral view (12, 17); aedeagus in lateral view (13-15, 18-21) of males from Greece (13; holotype), Sicily (14), Basilicata (15), Corsica (18-19; 18: holotype), northern Spain (20; holotype), and southwestern France (21); apical part of aedeagus in dorsal view (16). Scale bars: 0.1 mm.