Cephennium ericinum, Assing & Meybohm, 2021

Assing, Volker & Meybohm, Heinrich, 2021, The Cephennium fauna of Turkey and the Middle East (Coleoptera: Staphylinidae: Scydmaeninae), Beiträge Zur Entomologie = Contributions to Entomology 71 (1), pp. 1-28 : 16

Cephennium ericinum group

Species of intermediate to relatively large size; body length 1.3–1.7 mm. Body of reddish to dark-brown colouration. Eyes reduced to minute rudiments without ommatidia and pigmentation ( Figs 7–8 ). Pronotum large in relation to elytra (e.g., Figs 6 , 9 ), approximately as broad as elytra. Elytra without tomentose impressions anteriorly; humeral carina distinct, approximately as long as the combined length of the basal 3–4 antennomeres.

: protibia subapically not, or only weakly curved, flattened to weakly excavate in apical third to apical half; metaventrite extensively and rather deeply impressed; aedeagus with ventral process more or less gradually narrowed apicad, apically of more or less triangular shape; internal sac with spine-shaped structures of speciesspecific shapes and arrangement; parameres relatively short, thin, and non-sinuate, apically (seta excluded) extending to apical fourth or third of ventral process, with short and indistinct apical seta.

Species of the C. ericinum group are locally endemic in the region from Zonguldak province in the west to Ordu province in the east, Northwest and North Anatolia ( Map 2 ) .

Figures

Map 2: Distributions of Cephennium fractum (black circles) and of the species of the C. ericinum group: C. digitale (white triangle); C. spinigerum (black triangle); C. victrix (white circles); C. varispinosum (black diamond); C. ericinum (white diamond).

Figs 1–8: Male habitus in dorsal view (1–6) and head and pronotum in lateral view (7–8) of Cephennium bodemeyeri (1), C. fractum (2–3), C. infractum (4), C. immutatum (5), C. ericinum (6–7), and C. varispinosum (8). Scale bars: 1–6: 1.0 mm; 7–8: 0.5 mm.

Figs 9–16: Male habitus in dorsal view of Cephennium varispinosum (9), C. victrix (10), C. spinigerum (11), C. digitale (12), C. reductum (13), C. corruptum (14), C. marasicum (15), and C. dolucanum (16). Scale bar: 1.0 mm.