Cephennium pellucidum, Assing, 2021

Assing, Volker, 2021, On the Cephennium fauna of Greece (Coleoptera, Staphylinidae, Scydmaeninae), Linzer biologische Beiträge 52 (2), pp. 869-889 : 874

Cephennium pellucidum nov.sp. ( Figs 3 , 20-22 )

Type material: Holotype ♂: " GR-Sterea Elada, Bez. Fthiotida, Timfristos-Gebiet , n./ö. Passhöhe, 3.5.82, leg. Brachat / Holotypus ♂ Cephennium pellucidum sp. n. det. V. Assing 2020" ( cAss) . Paratypes: 4♀♀: same data as holotype (cAss) ; 1♂, 5♀♀: "GR-Sterea Elada, Bez. Evritania, westl. Timfristos, 1.6.90, leg. Brachat " (cAss) .

Etymology: The specific epithet (Latin, adjective: transparent) alludes to the weakly sclerotized internal structures of the aedeagus.

Description: Body length 1.2-1.3 mm; antenna approximately 0.55-0.65 mm long. Colouration: body reddish to blackish-brown, usually with the elytra darker than the head and pronotum. Habitus ( Fig. 3 ) and other external characters as in C. dilatatum , except as follows:

Pronotum with indistinct median elevation posteriorly.

♂: protibia apically strongly bent and distinctly excavate; mesotibia subapically weakly curved and somewhat excavate; aedeagus ( Figs 20-22 ) 0.30-0.32 mm long; median lobe apically broad and with acute median process; internal structures lamellate and weakly sclerotized; parameres slender, not reaching apex of median lobe, with moderately long apical seta.

Comparative notes: This species, too, belongs to the C. perispinctum group. It differs from other representatives of this group particularly by the modifications of the male pro- and mesotibiae, as well as by the shape and lamellate internal structures of the aedeagus.

Distribution and natural history: The type material was collected in two localities in and near Oros Timfristos, near the border between Evritania and Fthiotis. Other data are not available.

Figures

Figs 1-5: Male habitus of Cephennium dilatatum (1), C. olympicum (2), C. pellucidum (3), C. brachati (4), and C. aciferum (5). Scale bar: 1.0 mm.

Figs 20-29: Cephennium pellucidum (20-22), C. brachati (23), C. vitsiense (24-25), C. vellicans (26-27), and C. catax (28-29): (20-24, 26, 28-29) aedeagus in lateral and in ventral view; (25, 27) internal structures of aedeagus. Scale bars: 20-24, 26, 28-29: 0.1 mm; 25, 27: 0.05 mm.