Sinoxylon lycturum Lesne 1936
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2026
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| _version_ | 1866901845152104448 |
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| author | Liu, Lan-Yu |
| author_facet | Liu, Lan-Yu |
| contents | <p><b><i>Sinoxylon lycturum</i> Lesne 1936 (Figs. 13C&D)</b></p><p><i>Sinoxylon lycturum</i> Lesne 1936: 136.</p><p>Type material examined: <i>Sinoxylon lycturum</i> HT (NFIC).</p><p>Diagnosis. Bostrichine type of antennal club. Elytra shining with sparse appressed yellowish setae; anteriorly, finely, evenly punctuated on disc. Elytral declivity truncate, without marginal tubercles; declivital suture cariniform but not swollen; juxtasutural spines inserted in the middle of declivity and on the suture, short, triangular, divergent, compressed laterally, blunt apex, external face smooth and shining.</p><p>BODY subelongate, 5mm in length, 2.25 times as long as wide. Dark brown and shinning especially the elytra, antennae reddish, funicle brownish, tarsi and humeri brown.</p><p>HEAD antennal club antennomeres dull, 1 st and 2 nd club antennomeres transverse, the 1 st club antennomere about twice as wide as long, the 2 nd club antennomere less than twice as wide as long, the 3 rd club antennomere slightly longer. Eyes medium-sized, posterior margin strongly raised. Frons sparsely granulate, with long, golden erect setae, inclined backwardly and centrally, in a transverse line behind the anterior margin, anterior emarginate sinuated between two rounded teeth next to the base of labrum, inflated and costiform at sides; anterior margin of clypeus arch form (fig.10), sparsely granulate with very sparse erect setae, framed by black outer frame and a median line, the middle part of the outer frame reddish.</p><p>PRONOTUM sides convex, anterior angles with a weakly backwardly curved tooth, posterior angles obtuse, sides slightly convex; posterior area of pronotum covered with minute, subcircular, appressed granules, densely placed but not contiguous, with a fine, appressed, yellow pubescence, the pubescence denser and longer on sides; no median sulcus.</p><p>SCUTELLUM very small, subquadrate.</p><p>ELYTRA shining with sparse appressed yellowish setae; anteriorly, finely, evenly punctuated on disc. Elytral declivity truncate, subconcave on middle part, more strongly bulged on both sides towards the declivital suture, lateral margin subcostate, without marginal tubercles; declivital disc with subsparse circular punctures, pubescence sparse, very fine, appressed directed dorsally; epipleural sulcate as far as the sutural angle. Declivital suture cariniform but not swollen; juxtasutural spines inserted in the middle of declivity and on the suture, short, triangular, divergent, compressed laterally, blunt apex, external face smooth and shining.</p><p>LEG Tibiae with long erect setae externally.</p><p><b>Geographical distribution:</b> Lesne (1936) described this species from a singleton collected from Insein distinct, Okkan Reserve, Myanmar.</p><p><b>Biology:</b> The type specimen was collected from <i>Bambusa polymorpha</i> (Poaceae) in February, 1927.</p><p><b>Remarks:</b> The holotype is deposited in NFIC (Borowski & Singh 2017). There is no further record since Lesne (1936).</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19172580 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Sinoxylon lycturum Lesne 1936 Liu, Lan-Yu Biodiversity Taxonomy Animalia Arthropoda Insecta Coleoptera Bostrichidae Sinoxylon Sinoxylon lycturum <p><b><i>Sinoxylon lycturum</i> Lesne 1936 (Figs. 13C&D)</b></p><p><i>Sinoxylon lycturum</i> Lesne 1936: 136.</p><p>Type material examined: <i>Sinoxylon lycturum</i> HT (NFIC).</p><p>Diagnosis. Bostrichine type of antennal club. Elytra shining with sparse appressed yellowish setae; anteriorly, finely, evenly punctuated on disc. Elytral declivity truncate, without marginal tubercles; declivital suture cariniform but not swollen; juxtasutural spines inserted in the middle of declivity and on the suture, short, triangular, divergent, compressed laterally, blunt apex, external face smooth and shining.</p><p>BODY subelongate, 5mm in length, 2.25 times as long as wide. Dark brown and shinning especially the elytra, antennae reddish, funicle brownish, tarsi and humeri brown.</p><p>HEAD antennal club antennomeres dull, 1 st and 2 nd club antennomeres transverse, the 1 st club antennomere about twice as wide as long, the 2 nd club antennomere less than twice as wide as long, the 3 rd club antennomere slightly longer. Eyes medium-sized, posterior margin strongly raised. Frons sparsely granulate, with long, golden erect setae, inclined backwardly and centrally, in a transverse line behind the anterior margin, anterior emarginate sinuated between two rounded teeth next to the base of labrum, inflated and costiform at sides; anterior margin of clypeus arch form (fig.10), sparsely granulate with very sparse erect setae, framed by black outer frame and a median line, the middle part of the outer frame reddish.</p><p>PRONOTUM sides convex, anterior angles with a weakly backwardly curved tooth, posterior angles obtuse, sides slightly convex; posterior area of pronotum covered with minute, subcircular, appressed granules, densely placed but not contiguous, with a fine, appressed, yellow pubescence, the pubescence denser and longer on sides; no median sulcus.</p><p>SCUTELLUM very small, subquadrate.</p><p>ELYTRA shining with sparse appressed yellowish setae; anteriorly, finely, evenly punctuated on disc. Elytral declivity truncate, subconcave on middle part, more strongly bulged on both sides towards the declivital suture, lateral margin subcostate, without marginal tubercles; declivital disc with subsparse circular punctures, pubescence sparse, very fine, appressed directed dorsally; epipleural sulcate as far as the sutural angle. Declivital suture cariniform but not swollen; juxtasutural spines inserted in the middle of declivity and on the suture, short, triangular, divergent, compressed laterally, blunt apex, external face smooth and shining.</p><p>LEG Tibiae with long erect setae externally.</p><p><b>Geographical distribution:</b> Lesne (1936) described this species from a singleton collected from Insein distinct, Okkan Reserve, Myanmar.</p><p><b>Biology:</b> The type specimen was collected from <i>Bambusa polymorpha</i> (Poaceae) in February, 1927.</p><p><b>Remarks:</b> The holotype is deposited in NFIC (Borowski & Singh 2017). There is no further record since Lesne (1936).</p> |
| title | Sinoxylon lycturum Lesne 1936 |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Coleoptera Bostrichidae Sinoxylon Sinoxylon lycturum |
| url | https://doi.org/10.5281/zenodo.19172580 |