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

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

( Figs 126, 130–132 View FIGURES 124–133 )

Type material. Holotype: CHINA (YUNNAN Prov.): ♂, two labels: “CHINA: Yunnan, Lincang Pref., / Bangma Shan, E pass, 7 km NW / Lincang , 23º57’31’’N, 99º56’13’’E, / 2040 m, secondary pine forest, litter, / dead wood & mushrooms sifted, / 9.IX.2009, leg. M. Schülke [ CH09-36 ]” [white, printed]; “ CEPHENNODES (s. str.) / micrus m. / P. Jałoszyński, 2025 / HOLOTYPUS ” [red, printed] ( MNB). GoogleMaps

Diagnosis. Body extremely small, BL 1 mm; antennae gradually thickened; punctures on head fine and inconspicuous, on pronotum small but distinct, sharply marked and dense, separated by spaces slightly narrower than their diameters, those on elytra dense but very shallow, superficial; subhumeral lines short, as long as 0.3 × EL. Male: lacking secondary sexual characters; aedeagus ( Figs 131–132 View FIGURES 124–133 ) in ventral view with slightly recurved and conspicuously elongate, rod-like apical region of capsular portion pointed at apex; distal margin of apical plate distinctly concave.

Description. Body of male ( Fig. 130 View FIGURES 124–133 ) strongly convex, oval, with shallow but distinct constriction between pronotum and elytra, moderately dark brown with slightly lighter tarsi, covered with yellowish brown setae. BL 1.00 mm.

Head broadest across moderately large and moderately strongly convex, coarsely faceted eyes, HL 0.13 mm, HW 0.25 mm; frontovertexal region weakly convex at middle; supraantennal tubercles weakly elevated. Punctures on clypeus and frontovertexal region fine and inconspicuous; setae short, sparse, suberect. Antennae long and slender, gradually and strongly thickened, AnL 0.55 mm, antennomere 1 about as long as broad, 2 distinctly elongate, 3–7 each about as long as broad, 8 strongly, 9 and 10 weakly transverse, 11 slightly longer than 9 and 10 combined, about 1.8 × as long as broad.

Pronotum semi-oval, moderately strongly convex at middle and flattened near hind corners, equally broad between base and middle; PL 0.33 mm, PW 0.48 mm. Anterior margin in strictly dorsal view nearly straight; lateral margins strongly rounded in anterior half and straight posteriorly, finely microserrate, posterior corners nearly right-angled; posterior margin shallowly bisinuate; lateral marginal carinae simple (i.e., not doubled); lateral antebasal pits shallow but distinct, each distinctly closer to posterior than lateral pronotal margin. Punctures on pronotal disc small and shallow but sharply marked and dense, separated by spaces slightly shorter than their diameters; setae short and moderately dense, suberect.

Elytra slightly wider than pronotum, together oval, broadest between middle and anterior third; EL 0.55 mm, EW 0.50 mm, EI 1.10; subhumeral lines marked as borders between lower mesal and elevated humeral regions, as long as about 0.3 × EL and weakly divergent posterad; basal elytral fovea on each elytron situated slightly closer to lateral margin of mesoscutellum than to subhumeral line; elytral apices separately rounded. Punctures on elytra very shallow, superficial, slightly larger and sparser than those on pronotum; setae similar to those on pronotum.

Hind wings functional.

Metaventrite with lateral impressions about as long as half of its length.

Legs long and slender, unmodified.

Aedeagus ( Figs 131–132 View FIGURES 124–133 ) of modified simonis form, AeL 0.18 mm; capsular region of median lobe in ventral view drop-shaped with conspicuously strongly elongate, rod-like distal region largely parallel-sided except for tapered apex; dorsal apical projection (= distal plate) in ventral view with strongly concave distal (oblique) margin; parameres long and slender, not reaching apex of aedeagus, in studied specimen only one paramere is discernible, with two short apical setae and one long subapical seta.

Female. Unknown.

Distribution. S China: Yunnan.

Etymology. Micrus is here treated as a noun in apposition; it refers to the extremely small body size.

Remarks. Cephennodes micrus is the stoutest of all members of the C. palpalis group, with most strongly convex lateral elytral margins.