Amphimenes (s. str.) hartmanni, Anichtchenko, 2024

Amphimenes (s. str.) hartmanni sp. n.

(Figs. 2, 5, 6)

Material. Holotype, male: “NE – Laos, Pr. Hua Phan / Ban Saleui, Phou Pan (Mt.) / ~ 20°12N, 104°01E / 31.V.2011, 1300-1900m, / local collector”, “collection / NATURKUNDE -/ MUSEUM ERFURT [yellow label]”, “ Holotype / Amphimenes (s.str.) / hartmanni sp.n. / des. Anichtchenko A. 24 [red label, handwritten]” ( NME). GoogleMaps

Diagnosis. This new species belongs to the

“ piceolus ”-group sensu Fedorenko (2019). In general appearance, by the reduced hind-wings and the shape of aedeagus it is closely related to A. (s. str.) asahinai Nakane, 1957 , known from Taiwan, from which it can be distinguished by the small size, the narrow lateral margins of pronotum and the shape of median lobe of aedeagus, curved before the middle in lateral view, and wide in dorsal view.

Description. Body length 4.5 mm. Dorsum brown, mouthparts, legs and antennae light brown, clypeus and labrum brown (Fig. 2).

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Alexander Anichtchenko

Gula, trochanters and coxa brownish-red.

Eyes flattened, temples about half as long as eye; posterior supraorbital seta situated in distance equal to radius of eye back. Labrum slightly incised. Frontal foveae shallow. Microreticulation consists of polygonal meshes. Antennae long, surpassing base of pronotum by two and half last joints.

Pronotum 1.25 times as wide as long, 1.42 times as wide as head, with front angles slightly protruding and rounded apically; sides slightly angulate in front of lateral pore, weakly sinuate before hind angles; not reflexed between lateral pore and anterior angle, very slightly reflexed towards hind angles; lateral margin narrow, gradually expanding from anterior angles towards hind angles. Hind angles obtuse. Base of pronotum slightly protruding backwards. Mid-line reaching anterior border, superficial on the disc. Basal foveae flat and indistinct. Microreticulation on the disc very strong, almost isodiametric, towards the sides meshes becomes stronger, and towards hind angles meshes turns into small tubercles.

Elytra oval, 1.32 times as long as wide, 1.66 times as wide as pronotum, broadest at about middle, with shoulders strongly rounded; not fused along midline; apical truncature moderately sinuate between a rounded outer angle and a pointed apex. Three discal setigerous pores: D1/EL=0.32, D2/EL=0.78 and D3/EL=0.94. All elytral striae deep, gently punctate, intervals moderately transversally striate, on the disc of elytra transverse striation becomes weak. Microreticulation strongly transverse. Hind wings reduced.

Ventral segments smooth, impunctate. Metepisternum short, subsquare. Last metatarsomere with two distal pairs of ventral setae. Claws with four denticles, basal one much smaller. Basal third of male profemur with obtuse and wide ventral tubercle.

Aedeagus (Figs. 5-6): median lobe elongate, in lateral view evenly rounded dorsally and bend- ed at an obtuse angle before the middle ventrally; apical lamella elongate, with a rounded tip. Endophallus without distinct structures.

Etymology. This new species is named for Matthias Hartmann, Coleoptera specialist, and Managing Director at Naturkundemuseum Erfurt ( Germany).

Distribution. Known only from type locality in Laos.

Figures 3-6. Aedeagus structure of Amphimenes in lateral and dorsal view. 3-4 – A. (s. str.) kmecoi sp. n. 5-6 – A. (s. str.) hartmanni sp. n. Images courtesy A. Anichtchenko.

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New species of genus Amphimenes Bates, 1873 ( Coleoptera , carabidae, Lebiinae ) from Laos and Malaysia