Cephennium lombardum, Kahlen & Eckelt, 2024

Kahlen, Manfred & Eckelt, Andreas, 2024, Contribution to the knowledge of the Italian species of the genus Cephennium MÜLLER & KUNZE, 1822 (Coleoptera, Staphylinidae, Scydmaeninae), Linzer biologische Beiträge 56 (1), pp. 69-109 : 82

Cephennium lombardum nov.sp. ( Figs 21-25 , 81 )

C. affabile BESUCHET i.l., = C. breitianum MACHULKA i.l.

T y p e M a t e r i a l: Holotype ♁: Italy / Bergamo , Bergamo Pre-Alps , Pizzo Arera vicinity, Val d'Arera right valley slope, karst, 1820-1850 m, 45.9281°N, 9.8°E, 27.5.2022, rhododendron litter, leg. Kahlen. / Cephennium lombardum nov.sp. ♁ det. Kahlen / Holotype TLMF. Paratypes: 2♁♁, same data as holotype, leg. Kahlen ( TLMF) ; 1♁: Italy / Bergamo , Bergamo Pre-Alps, Presolana, Colle della Guaita N side, 1900 m, 45.9629°N, 10.0639°E, 12.7.1989, rhododendron litter, leg. Kahlen ( TLMF) .

Type material collection Meybohm: Paratypes, all cMey:1♁: Italia / Bergamo, Bergamo Pre-Alps, Presolana, Rifugio Albani, 1950 m, 45.9661°N, 10.0561°E, 11.7.1989, leg. V. Brachat. 1♁ 1♀: Italia / Brescia, Monte Guglielmo, 1920 m, 45.7558°N, 10.1683°E, 3.6.2003, leg. P. Wunderle. All specimens det. Kahlen.

N o n t y p e m a t e r i a l: Brescia, Mt. Guglielmo , leg. Breit, det. Machulka: C. breitianum i.l. m .; 1♁ 1♀ coll. Mus. Frey, 1♁ 1♀ coll. Besuchet (Besuchet i.l) .

E t y m o l o g y: The species name derives from its occurrence in the pre-Alps of the Lombardy region.

D e s c r i p t i o n: Habitus as in Fig. 21 . Body length 1.25 mm. Body dark brownishblack, head, pronotum, and appendages lighter than elytra; glossy, hair fairly dense, moderately long, and almost appressed. Head glossy, unpunctured, with large but hardly protruding eyes. Antennal segment 1 short, 2 distinct, 3 to 7 slightly longer than wide and scarcely differing in width, only the 8th segment rounded and smaller than the 7th, 9th segment hardly wider than long and thus the club weakly differentiated. Pronotum slightly wider than long (1.18:1), glossy with dense fine and visibly rugose punctation, greatest width just before the middle, rounded from here to the front, almost straight converging towards the rear, no humped elevation before the base. Elytra narrower than long (1:1.4), glossy and with much coarser, rugose, but more extensive punctation than the pronotum. Greatest width before the middle, sides evenly rounded. The basal foveae notably large in the middle between the suture and lateral margin and with tomentose tufts at the anterior edge. In males, the tibiae are quite distinctive: the thickened fore tibiae in the apical half are curved on the outer margin in the thickening and particularly rough here with coarse granules, deeply incised on the inner margin and narrowed towards the apex. The long middle tibiae are slightly doubly curved and weakly thickened in their apical half. The also long hind tibiae are strikingly doubly curved, but hardly thickened in the apical two-thirds (Fore tibia Fig. 24 , hind tibia see habitus Fig. 21 ). Underside: ♁ with metaventrite deeply impressed, glossy, smooth and very fine punctured in the centre, finely and sparsely hairy and very finely and extensively punctured towards the edges ( Fig. 23 ). Genitalia: Length 0.32-0.33 mm. Dorsal Fig. 22 , unpublished drawing Besuchet Fig. 81 ; lateral Fig. 25 .

Figures

Figs 21-25: Cephennium lombardum. (21) male habitus holotype,sb: 0.5 mm; (22) aedeagus dorsal view holotype, sb: 0.1 mm; (23) ventral view of metaventrite; (24) male front tibia; (25) aedeagus lateral, sb: 0.1 mm (Figs 23-25 paratype).

Figs 79-87: Drawings of aedeagi and internal structures (based on Besuchet unpublished). (79) Cephennium friulicum, (80) C.liguricum, (81) C.lombardum, (82) C.tarvisinum, (83)C. vicentinum, (84) C. montiumliguriae, (85) C. peezi, (86) C. dolomitanum, (87) C. julicum.