Cephennium infractum, 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 : 8-16

Cephennium infractum spec. nov.

urn:lsid:zoobank.org:act:E222C4A2-D6AC-48FF-AC4C-B274EF405209

( Figs 4 , 33 , 47 , Map 1 )

Type material examined: Holotype : “ N39°56'15 E29°15'25 (24), TR Bursa 18.4.2010, Kocayayla 1200 m, leg. Brachat & Meybohm / Holotypus  Cephennium infractum sp. n., det. V. Assing 2020” (cAss) . Paratypes: 1 , 4 : same data as holotype (cAss).

Etymology: The specific epithet is the past participle of the Latin verb infringere (to fold, to break) and alludes to the subapically distinctly curved male protibiae.

Description: Body length 1.2–1.3 mm. Habitus as in Fig. 4 . Colouration: body reddish to brown, sometimes with the elytra somewhat darker than the head and pronotum. Eyes composed of 5–10 ommatidia. Other external characters as in C. fractum .

: protibia distinctly bent subapically and excavated in subapical portion, apically dilated; metaventrite shallowly and extensively impressed; aedeagus ( Figs 33 , 47 ) long and slender, 0.55–0.58 mm long; ventral process not constricted, subapically abruptly narrowed, and apically with long median extension; internal sac with weakly sclerotized small structures; paramere long and straight, each with a long and curved apical seta.

Comparative notes: This species is distinguished from the similar C. fractum especially by a shorter aedeagus with a ventral process of different shape and with a longer apical median extension. In addition, the male metaventrite is shallowly impressed and the colouration is on average paler.

Distribution and natural history: The type locality is situated in the south slopes of Uludağ, Bursa ( Map 1 ). The specimens were sifted from litter in a grassy valley surrounded by pine forest at an altitude of 1200 m.

Figures

Map 1: Distributions of species of the Cephennium perispinctum group: C. bodemeyeri (black circles); C. liguliferum (white star); C. infractum (white triangle); C. immutatum (white circles).

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 25–35: Aedeagus in ventral view (25, 27, 29–30, 32–35) and apical portion of aedeagus in ventral view (26, 28, 31) of Cephennium perispinctum (25–26), C. fibuliferum (27–28), C. bodemeyeri (29–31), C. fractum (32), C. infractum (33), and C. immutatum (34–35). Scale bars: 25, 27, 29–30, 32–35: 0.2 mm; 26, 28, 31: 0.1 mm.

Figs 36–47: Aedeagus in ventral view (36, 38, 40, 42, 44), internal structures of aedeagus (37, 39, 41, 43, 45), and apical portion of aedeagus in ventral view (46–47) of Cephennium ericinum (36–37), C. varispinosum (38–39), C. victrix (40–41), C. spinigerum (42–43), C. digitale (44–45), C. fractum (46), and C. infractum (47). Scale bars: 36, 38, 40, 42, 44: 0.2 mm; 37, 39, 41, 43, 45–47: 0.1 mm.