Macrotomoderus hajeki Telnov 2022, sp. nov.
Creators: name: Telnov, Dmitry
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Anthicidae
Macrotomoderus
Macrotomoderus hajeki

description: Macrotomoderus hajeki sp. nov.
urn:lsid:zoobank.org:act: 9445FADE-9561-412D-B434-DA1D0699ACC4
Figs 16–17
Differential diagnosis
See key to species below.
Etymology
Patronymic. Named in honour of one of the first collectors and my good colleague, Jiří Hájek (NMP).
Type material
Holotype CHINA • ♂; “CHINA, Guangdong prov (MF 16) W of Qixing, 1-3.v.2011 Heishiding nature reserve 23°27.9′N, 111°54.3′E 190-260m, Fikáček & Hájek // sifting of moist leaf litter in the dried-up streambeds and along the streams in the primary lowland forest ”; NMP.
Paratypes (3 specimens) CHINA • 2 ♀♀; same labels as for holotype; NMP • 1 ♀; same labels as for holotype; DTC.
Description
MEASUREMENTS. Holotype, total body length 3.55 mm; head 0.7 mm long, across eyes 0.8 mm broad, pronotum 0.85 mm long, maximum width 0.7 mm, minimum width 0.3 mm, elytra 2 mm long, 1.5 mm combined wide. Selected female paratypes are 3.5 mm and 3.6 mm long.
Dorsum and venter uniformly brown, pronotum contrastingly paler. Mouthparts, antennae, palps and legs yellow. Head broadly ovoid with moderately large, ovoid compound eyes, which are slightly protruding beyond head outline laterally. Head rounded in very broad arc posterior to eyes. Head dorsal punctures minute and inconspicuous. Head dorsal setae inconspicuous, sparse. Antennae extending towards base of pronotum. Antennomere three slightly longer than antennomere two, antennomeres 8–10 transverse, of them 9–10 strongly transverse. Terminal antennomere asymmetrically triangular with pointed apex, 2–2.2× as long as penultimate antennomere. Terminal maxillary palpomere securiform. Pronotum with broad and medially deeply notched postmedian lateral constriction. Front margin of anterior lobe broadly rounded, dorsally without anterior rim (Fig. 16B). Anterior lobe very slightly convex, near flattened in lateral view (Fig. 16C). Lateral constriction slightly continues onto disc in lateral view, very shallow (Fig. 16C). Lateral pronotal fovea moderately broad and deep at lower external margin of pronotum, widens upwards towards pronotal disc in lateral view, external margins protruding into obtuse (in lateral view), moderately widely separated denticles (in lateral view). Cavity in lateral wall of pronotum between lateral denticles small, elliptical. In dorsal view, lateral pronotal fovea moderately broad, anterior and posterior pair of denticles appear obtusely angulate, anterior pair glabrous, posterior dorsally with a brush of dense, short setae (Fig. 16B). Pronotal punctures minute on disc; lateral constriction dorsally with dense, irregularly shaped punctures. Dorsal pronotal setae inconspicuous, moderately long. Scutellar shield small, apically rounded. Elytra dorsally elliptical, flattened in lateral view, widened laterally around midlength, shoulders obsolete (apterous species). Elytral punctures moderately large, dense, becoming smaller and sparser towards apices. Elytral setae long and sparse, suberect. Male tergite and morphological sternite VII broadly rounded at posterior margin. Aedeagus as in Fig. 17, rather large and robust, with large, balloon-like basale and large, irregularly-shaped, apically tapered, gonopore armature.
Sexual dimorphism
Not indicated.
Ecology
Collected from leaf litter in the streambeds in the primary lowland forest at 190–260 m elevation.
Distribution
Known only from Heishiding nature reserve, Guangdong Province, SE China.
description: Published as part of Telnov, Dmitry, 2022, Revision of the Tomoderinae (Coleoptera: Anthicidae). Part III. New species and records of Macrotomoderus Pic, 1901 from China and a key to the Palaearctic species, pp. 1-100 in European Journal of Taxonomy 797 on pages 29-32, DOI: 10.5852/ejt.2022.797.1667, http://zenodo.org/record/6299487