Cephennium (Macroderus) nevadae, 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 : 927-928

Cephennium (Macroderus) nevadae nov.sp. ( Figs 18 , 72-74 , Map 3 )

Type material: Holotype ♂: "E. Andalusien (GR), Sierra Nevada, Solynieve , 1700- 1900 m, 21.III.1994 Assing 6 / Holotypus ♂ Cephennium nevadae sp. n. det. V. Assing 2020" ( cAss) . Paratypes: 3♂♂: same data as holotype (cAss) ; 2 exs.: "E Andalusia GR Sierra Nevada Str. zur 1700 m, N-Hang, Pinus Junip., 21.03.94 Wunderle leg." (cAss) .

Etymology: The specific epithet is the genitive of Nevada, the name of the mountain range where the type locality is situated.

Description: Body length 1.4-1.5 mm. Habitus as in Fig. 18 . Colouration palereddish. Eyes composed of approximately seven ommatidia. Elytra with anterior sulci approximately as long as the combined length of the basal four to five antennomeres. Other external characters not distinctive.

♂: metaventrite very shallowly impressed; aedeagus ( Figs 72-74 ) 0.38-0.39 mm long; apex of ventral process of broadly triangular shape in ventral view; internal structures massive; parameres apically nearly reaching apex of median lobe.

Comparative notes: Cephennium nevadae is distinguished from other Macroderus species only by the shape and internal structures of the aedeagus.

Distribution and natural history: The type material was found below Sol y Nieve (= Pradollano), Sierra Nevada, Andalucía ( Map 3 ). The specimens were sifted from litter and debris, partly near snow, in a stream valley at an altitude of 1900 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 17-20: Male habitus of species of the subgenus Macroderus in dorsal view: (17) Cephennium segurae; (18) C. nevadae; (19) C. cazorlae; (20) C. malagae. Scale bar: 1.0 mm.

Figs 72-78: Cephennium nevadae (72-74), C. carzolae (75-77), and C. malagae (78): (72-73, 75- 76) aedeagus in lateral and in ventral view; (74, 77-78) internal structures of aedeagus in ventral view. Scale bars: 0.1 mm.