Ochinoeus Kubecek, Bray & Bocak, 2015, gen. nov.
Creators: name: Kubecek, Vaclav
name: Bray, Timothy C.
name: Bocak, Ladislav
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Ochinoeus

description: Ochinoeus gen. nov.
Type species. Ochinoeus huaphanensis sp. nov.
Diagnosis. Ochinoeus differs from Matsudanoeus in the structure of male and female genitalia: Ochinoeus have phallus widened apically, the sclerotized thorns are inconspicuous, short and similar in length (Figs. 25–32) unlike Matsudanoeus which have asymmetrical, long and well-sclerotized thorns in the internal sac (Figs. 23–24). Ovipositors have short, closely attached valvifers in the only slightly divergent position, aligned with the axis of the coxites (Fig. 33), differing from the almost perpendicular position of the coxites in Matsudanoeus. Both genera are similar in superficial appearance and differ only in the irregular elytral secondary costae, which are inconspicuous to missing in the middle part of the elytron in Ochinoeus (Figs. 18, 20–22) and regular, well-developed in Matsudanoeus (Fig. 19). All Metanoeus differ in structure of pronotal carinae (Fig. 11), presenting very small elytral cells and regular secondary and transverse costae. Xylometanoeus have only primary costae present (Sklenarova et al. 2014). The superficially similar Cautires (Fig. 10) have lanceolate phallus and slender valvifers.
Description. Adult. Body 8.9–12 mm, dorso-ventrally flattened, moderately slender, body length 3.9–4.6 times width at humeri, elytra slightly widened backward (Fig. 3–4). Body dark brown to black, pronotum and elytra often brightly coloured, ochreous, brown to dark brown, scutellum brown to light brown. Head, antennae and legs brown, covered with short pubescence.
Head small, slightly hypognathous, partly retracted in pronotum. Eyes large, hemispherically prominent, interocular distance 1.00–1.26 times maximum eye diameter in males and 1.22–1.23 times larger in females. Mandibles slender, strongly curved. Maxillary palpi 4-segmented, basal palpomere 1 short, triangular, palpomere 2 elongate, 1.67 times longer than palpomere 1, palpomere 3 very short, apical palpomere robust, almost parallelsided, obliquely cut at apex. Labial palpi 3-segmented, basal palpomere robust, palpomere 2 short, square, apical palpomere robust, widest apically. Antennae 11-segmented, finely pubescent, scapus pear-shaped, pedicel short, rectangular, partly hidden in scapus; antennomeres 3–10 flabellate in males, serrate in females (Figs. 14–17).
Pronotum trapezoidal, widely rounded frontally, with projected posterior angles (Figs. 6–9) pronotum 1.3–1.5 times wider at posterior angles than long at midline. Pronotum with seven areolae, but postero-lateral carinae sometimes inconspicuous and only five clear areolae present in disc of pronotum as result; lateral margins of pronotum only slightly elevated. Scutellum well-developed, wide at base, emarginate apically, with two prominent processes (Fig. 12). Elytra slender, 3.7–4.0 times longer than wide at humeri in males, 3.5 times longer than wide at humeri in females, flat, slightly widened posteriorly; four primary costae developed in entire length, secondary costae much weaker, irregular to missing especially in middle part of elytra (Figs. 18, 20–22); bottoms of elytral cells smooth, with very short microsetae.
Male genitalia without parameres, phallobase circular, with extensive ventral membrane ventrally, phallus club-shaped, widest anteriorly, with widely rounded or slender apex (Figs. 25–32), internal sac with two inconspicuous thorns apically (Figs. 25–32). Female genitalia short and wide, with slender coxites and short, closely attached valvifers, valvifers always shorter than coxites. Vagina wide, membranous, lateral glands with basally sclerotized ducts (Fig. 33)
Distribution. Four known species were recorded from various regions of China and Laos (Fig. 2), namely Yunnan, Shanxi, Hainan and Hua Phan province in northern Laos.
Etymology. The generic name Ochinoeus is a patronym in honour of Teruo Ochi, Kobe, Japan. The genus name is the noun of masculine gender.
description: Published as part of Kubecek, Vaclav, Bray, Timothy C. & Bocak, Ladislav, 2015, Molecular phylogeny of Metanoeina net-winged beetles identifies Ochinoeus, a new genus from China and Laos (Coleoptera: Lycidae), pp. 113-122 in Zootaxa 3955 (1) on pages 116-117, DOI: 10.11646/zootaxa.3955.1.6, http://zenodo.org/record/241004