Arthromelodes nomurai Yin 2022, sp. nov.

Arthromelodes nomurai sp. nov. (Figs 23, 79B, 97C, D) Chinese common name: Ǚ村氏njà甲 Type material (1 ex.). HOLOTYPE: CHINA: ♂, ‘ China: Xizang, Nyingchi City, Pailong Country, 30°0’34.71”N, 94°57’57.64”E, 2190 m, 2019.vii.15–viii.01, FIT, Z.-W. Yin leg., [ƱẪffżḦËƖǎ]’ (SNUC). Diagnosis. Male. Body length slightly over 2.0 mm. Head sub-rectangular at base; vertexal foveae large and asetose, with trapezoidal sulcus connecting foveae; lacking mediobasal carina; antenna moderately long, antennomeres each elongate, lacking modifications. Pronotum with median longitudinal sulcus much shorter than semicircular lateral ones. Discal stria of elytron extending to apical 1/3 of elytral length. Legs more or less robust; pro- and mesofemur thickened, mesotibia expanded mesally at basal 1/3 and with small apical protuberance, mesotrochanter with small, thin ventral spine. Abdomen with large tergite 1 (IV) longer than tergites 2–4 (V–VII) combined; tergite 1 (IV) simple; sternite 2 (IV) with short, transverse median projection. Aedeagus strongly asymmetric; median lobe with large basal capsule and rounded triangular foramen, basoventral projection moderately long, ventral stalk relatively short, narrowing apically in lateral view, dorsal lobe extremely elongate, apical half strongly curved ventrally, parameres reduced and forming single membranous structure. Description. Male. Body (Fig. 23A) length 2.05 mm; color reddish-brown, tarsi and mouthparts lighter. Dorsal surface of body covered with scattered exceptionally long pubescence and normal ones. Head (Fig. 23B) sub-rectangular at base, approximately as long as wide, length 0.38 mm, width across eyes 0.40 mm; vertex finely punctate, with large, asetose vertexal foveae (dorsal tentorial pits), with complete reversed trapezoidal sulcus connecting foveae, with pairs of long setae just posterior to anterior margin of sulcus and near head base, mediobasal carina absent; antennal tubercles moderately raised; frons slightly impressed medially, confluent with clypeus; clypeus with ...