Ochinoeus, Kubecek, Vaclav, Bray, Timothy C. & Bocak, Ladislav, 2015
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publication ID |
https://doi.org/ 10.11646/zootaxa.3955.1.6 |
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publication LSID |
lsid:zoobank.org:pub:A6799083-28D0-470A-A958-ACEBC7B1AC07 |
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DOI |
https://doi.org/10.5281/zenodo.6111807 |
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persistent identifier |
https://treatment.plazi.org/id/039F8791-FFB8-FF8A-E4A8-FAA6FD88FBFE |
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treatment provided by |
Plazi |
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scientific name |
Ochinoeus |
| status |
gen. nov. |
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 View FIGURES 23 – 33 ) unlike Matsudanoeus which have asymmetrical, long and well-sclerotized thorns in the internal sac ( Figs. 23–24 View FIGURES 23 – 33 ). Ovipositors have short, closely attached valvifers in the only slightly divergent position, aligned with the axis of the coxites ( Fig. 33 View FIGURES 23 – 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 View FIGURES 5 – 22 ) and regular, well-developed in Matsudanoeus ( Fig. 19 View FIGURES 5 – 22 ). All Metanoeus differ in structure of pronotal carinae ( Fig. 11 View FIGURES 5 – 22 ), 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 View FIGURES 5 – 22 ) 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 View FIGURES 2 – 4. 2 ). 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 View FIGURES 5 – 22 ).
Pronotum trapezoidal, widely rounded frontally, with projected posterior angles ( Figs. 6–9 View FIGURES 5 – 22 ) 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 View FIGURES 5 – 22 ). 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 View FIGURES 5 – 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 View FIGURES 23 – 33 ), internal sac with two inconspicuous thorns apically ( Figs. 25–32 View FIGURES 23 – 33 ). 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 View FIGURES 23 – 33 )
Distribution. Four known species were recorded from various regions of China and Laos ( Fig. 2 View FIGURES 2 – 4. 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.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.