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.