Cephennium (Macroderus) verrens, Assing, 2021

Assing, Volker, 2021, On the Cephennium fauna of the Iberian Peninsula and the Atlantic Islands (Coleoptera, Staphylinidae, Scydmaeninae), Linzer biologische Beiträge 52 (2), pp. 891-931 : 926-927

Cephennium (Macroderus) verrens nov.sp. ( Figs 16 , 66 , Map 3 )

Type material: Holotype ♂: "E – No. 9; Andalucia, Sierra de Segura , 20 km S Pontones, 1830 m, 38°00'41N, 02°44'35W, 9.IV.2003, leg. V. Assing / Holotypus ♂ Cephennium verrens sp. n. det. V. Assing 2020" ( cAss) . Paratypes: 1♂, 1♀: same data as holotype (cAss) ; 1♂, 1♀: "E – No. 5; Andalucia. Sierra de Segura , 15 km S Pontones, 1580 m, 38°04'23N, 02°41'19W, 7.IV.2003, leg. V. Assing " (Ass) .

Etymology: The specific epithet is the present participle of the Latin verb verrere (to sweep, to brush) and alludes to the broom-shaped internal structures of the aedeagus.

Description: Body length 1.3-1.4 mm. Habitus as in Fig. 16 . Colouration palereddish. Pubescence of pronotum and elytra rather short and depressed. Eyes composed of approximately six ommatidia. Pronotum approximately 1.35 times as broad as long. Elytra with anterior sulci approximately as long as the combined length of the basal four antennomeres. Other external characters as in C. alacantae .

♂: metaventrite shallowly impressed; aedeagus ( Fig. 66 ) approximately 0.35 mm long; apex of median lobe convex in ventral view; internal structures brush-shaped; parameres apically nearly reaching apex of median lobe.

Comparative notes: Cephennium verrens is distinguished from the geographically close C. cujonicum and C. segurae particularly by a larger aedeagus with an apically convex ventral process and internal structures of different shape.

Distribution and natural history: The species was collected in two localities to the south of Pontones in the Sierra de Segura ( Map 3 ). The specimens were sifted in a north slope near snow at an altitude of 1830 m and found under stones in a grassy valley near a pine forest at an altitude of 1580 m.

Figures

Map 3: Distributions of Cephennium asturicum (black circles; based on Besuchet (unpubl.) and examined material) and of species of the subgenus Macroderus in the Iberian Peninsula: C. alacantae (black triangles); C. cujonicum (white diamond); C. segurae (black diamond); C. verrens (white circles); C. cazorlae (black square); C. nevadae (black star); C. malagae (white triangles).

Figs 12-16: Male habitus of species of the subgenus Macroderus in dorsal (12, 15-16), ventral (13), and in lateral view (14): (12-14) Cephennium alacantae; (15) C. cujonicum; (16) C. verrens. Scale bar: 1.0 mm.

Figs 65-71: Cephennium cujonicum (65), C. verrens (66), C. segurae (67-69), and C. malagae (70- 71): (65-71) aedeagus in lateral and in ventral view. Scale bars: 65-71: 0.1 mm.