Cephennodes (s. str.) rufus, Jałoszyński, 2025

Cephennodes (s. str.) rufus sp. nov.

( Figs 18–24 View FIGURES 12–24 )

Type material. Holotype: CHINA (YUNNAN Prov.): ♂, two labels: “CHINA: Yunnan [ CH07-24 ] Nujiang / Lisu Aut. Pref., Gaoligong Shan, valley 18 / km W Gongshan, 3020 m, 27º47’54’’N, / 98º30’13’’E, mixed forest, litter, moss / wood sifted, 7.VI.2007, M. Schülke ” [white, printed]; “ CEPHENNODES (s. str.) / rufus m. / P. Jałoszyński, 2025 / HOLOTYPUS ” [red, printed] ( MNB) GoogleMaps . Paratypes (3 exx.): 3 ♀♀, same data as for holotype, each with yellow “ PARATYPUS ” label ( MNB, cPJ) GoogleMaps .

Diagnosis. Body moderately large, around 1.5 mm in length; antennae with pentamerous clubs; punctures on head, pronotum and elytra equally fine and inconspicuous; pronotal lateral carinae single; subhumeral lines short, as long as 0.30 × EL. Male lacking secondary sexual characters; aedeagus ( Figs 23–24 View FIGURES 12–24 ) in ventral view with apical projections about as long as broad, in lateral view distal (dorsal) plate weakly curved, in ventral view rounded lobe at each distolateral corner of capsular region lacking; parameral apices strongly modified, in lateral view ( Fig. 22 View FIGURES 12–24 ) apical region with minute lateral denticles, subapical lateral process short, subtriangular and distant from apex.

Description. Body of male ( Fig. 18 View FIGURES 12–24 ) strongly convex, oval, with indistinct constriction between pronotum and elytra, light reddish-brown with darker pronotum and lighter tarsi, covered with yellowish setae. BL 1.45 mm.

Head broadest across moderately large and moderately strongly convex, coarsely faceted eyes, HL 0.18 mm, HW 0.35 mm; frontovertexal region weakly convex at middle, unmodified; supraantennal tubercles weakly elevated. Punctures on frontovertexal area fine and inconspicuous; setae sparse, short and suberect. Antennae long and slender, with pentamerous clubs, AnL 0.75 mm, antennomere 1 and 2 each distinctly elongate, 3 indistinctly elongate, 4 about as long as broad, 5 and 6 each distinctly elongate, 7 enlarged, elongate and slightly broader than 8, 8 distinctly transverse, 9 and 10 each about as long as broad, 11 indistinctly shorter than 9 and 10 combined, about 1.8 × as long as broad.

Pronotum semi-oval, strongly convex at middle and weakly flattened near hind corners, equally broad between middle and base; PL 0.45 mm, PW 0.65 mm. Anterior margin in strictly dorsal view nearly straight; lateral margins strongly rounded in anterior half and parallel posteriorly, microserration extremely fine and barely discernible; posterior corners nearly right-angled; posterior margin shallowly bisinuate; lateral marginal carinae simple (i.e., not doubled); lateral antebasal pits shallow but distinct, each slightly closer to posterior than lateral pronotal margin. Punctures on pronotal disc fine and inconspicuous; setae short and moderately dense, weakly suberect.

Elytra broader than pronotum, together oval, broadest near anterior third; EL 0.83 mm, EW 0.75 mm, EI 1.10; subhumeral lines developed as sharp borders between elevated humerus and lower mesal region, as long as 0.30 × EL and distinctly divergent posterad; basal elytral fovea on each elytron located distinctly closer to lateral margin of mesoscutellum than to subhumeral line; elytral apices unmodified, separately rounded. Punctures on elytra fine, unremarkable; setae similar to those on pronotum.

Hind wings functional.

Metaventrite lacking lateral impressions.

Legs long and slender, unmodified.

Aedeagus ( Figs 19–24 View FIGURES 12–24 ) of modified latus form, AeL 0.40 mm; capsular region of median lobe in ventral view oval, lacking pair of distolateral lobes; apical projections ( Fig. 19 View FIGURES 12–24 ) subtriangular and about as long as broad, in lateral view distal (dorsal) plate weakly curved; parameres short and massif, each with strongly modified apical region ( Figs 20–22 View FIGURES 12–24 ), in lateral view ( Fig. 22 View FIGURES 12–24 ) apical region with minute lateral denticles, subapical lateral process short, subtriangular and distant from apex, each paramere with two similarly long apical setae.

Female. Externally similar to male but slightly stouter and wingless; BL 1.55–1.58 mm; HL 0.23 mm, HW 0.38 mm, AnL 0.73–0.75 mm; PL 0.45–0.48 mm, PW 0.68–0.70 mm; EL 0.85–0.88 mm, EW 0.75–0.78 mm, EI 1.13–1.17.

Distribution. S China: Yunnan.

Etymology. The adjective rufus refers to the reddish pigmentation.

Remarks. This species is unremarkable, lacking any secondary sexual characters in males.The light pigmentation seems to be typical of fully pigmented adults, with the pronotum slightly darker than head and elytra. The most reliable diagnostic character is the unique modification of parameral apices ( Figs 27–29 View FIGURES 25–31 ), which have a small subapical process far from the insertion of setae and the subapical region is covered with asperities.