Cephennium peezi, 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 : 96-97

Cephennium peezi nov.sp. ( Figs 55-58 , 85 )

C. strupii BESUCHET i.l.

T y

p e M a t e r i a l: Holotype ♁: Italy / Trentino, Baitoni, 375 m, 45.808°N, 10.5407°E, 11.6.1935, leg. Pechlaner. / Cephennium peezi nov.sp. ♁ det. Kahlen / Holotype ( TLMF). Paratypes: 1♁: Italy / South Tyrol, Brixen/Mahr, 550-600 m, 46.6853°N, 11.6276°E, 10.6.1957, poplar mulch, leg. Peez ( TLMF); 1♁ 4♀♀: same data as above, 6.6.1956 and 10.6.1957, leg. Peez ( NMS); 1♁ 1♀: same data as above, 10.6.1957, leg. Peez (cMey).

Non type material: 1♁: Trentino, Monte Baldo, coll. Strupi; 1♀: Trentino, vicinity of Lake Ledro , coll. Strupi, 1♁ 1♀: coll. Strupi, coll. Besuchet ; 1♀: Trentino, Arco, coll. Strupi, coll. Museum Frey (unpublished notes Besuchet).

E t y m o l o g y: The species is to be dedicated in grateful memory to the first autors teacher and closest collaborator over several decades, Alexander von Peez.

D e s c r i p t i o n: Habitus as in Fig. 55 . Body length 0.95-1.05 mm, body width 0.35- 0.37 mm. Body slender and parallel, along with appendages light yellowish-brown; shiny, pilosity moderately dense, short, and appressed. Head shiny, unpunctured, with only an unstructured light area instead of facetted eyes and a shallowly bulging elevation above the base of the antenna. Antennal segment 1 short and rounded, 2 distinctly enlarged and nearly 1/3 longer than wide, 3-7 spherical, 8 broader than long and substantially smaller than 7, the three-segmented club sharply demarcated from it. Pronotum as long as wide, strongly shiny with extremely fine and very widespread punctures, the sides unbordered in the anterior curvature, sharply and distinctly bordered in the posterior two-thirds and slightly narrowed in this area; elongate triangular basal pits set off from the lateral margin by a distinct fold. Elytra much longer than wide (1.7:1), only very weakly rounded laterally, straightly truncated at the hind margin; shiny and compared to the pronotum with noticeably coarser and denser, but shallower punctures; the basal foveae broadened backwards and sideways, with slightly denser punctures at the margins, tomentose patch at the inner front edge. In males, anterior tibiae continuously weakly thickened, but without other distinctions. Underside:♁ Metaventrite only very shallowly depressed, almost flat, strongly shiny, extremely finely and widely punctured in the depression, bulge, and sides also strongly shiny and unpunctured, becoming distinctly punctured only at the extreme lateral margin ( Fig. 57 ). Genitalia: Length 0.25 mm. Dorsal Fig. 56 and 85 ., lateral Fig. 58 .

Figures

Figs 55-58: Cephennium peezi. (55) male habitus holotype, sb: 0.5 mm; (56) aedeagus dorsal view holotype, sb: 0.1 mm; (57) ventral view of metaventrite; (58) aedeagus lateral sb: 0.1 mm (Figs 57- 58 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.