Acrotrichis bidens, sp. nov.
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| _version_ | 1866901272987172864 |
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| author | Darby, Michael |
| author_facet | Darby, Michael |
| contents | <p><b><i>Acrotrichis bidens</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 3B41E644-05C6-48F5-99B5-A128A2AC458E</p><p>Fig. 16</p><p><b>Diagnosis</b></p><p>The short metaventral termination and form of the genitalia distinguish this species.</p><p><b>Etymology</b></p><p>Named after the form of the metaventral termination between the metacoxae.</p><p><b>Type material</b></p><p><b>Holotype</b> MALAYSIA-BORNEO • ♀; Sarawak, 4 th Division, Gunung Mulu National Park; 800–1700 m a.s.l.; 29 Apr. 1978; I. Hanski leg., BM 1978-524; pitfall trap fish bait LMR forest slope 10-12; BMNH.</p><p><b>Paratypes</b> MALAYSIA-BORNEO • 3 specs; same data as for holotype; BMNH.</p><p><b>Description</b></p><p>SIZE. Habitus (Fig. 16A), length 0.73 mm.</p><p>COLOUR. Dark yellowish brown, antennae and legs yellow, dorsal surface densely covered with fine overlapping yellow pubescence.</p><p>HEAD. Distance across eyes 0.29 mm; antennomeres III–XI, length 0.31 mm; mentum and submentum chaetotaxy (Fig. 16F).</p><p>PRONOTUM. Length 0.22 mm, width 0.47 mm, hind angles with a tiny sinuation in the lateral margin creating an acute angle (viewed from 45°).</p><p>ELYTRA. Length 0.46 mm, width 0.47 mm, clearly reticulate.</p><p>VENTRUM. Mesoventrum reticulate, without pubescence, keel obliterated anteriorly before collar, extending posteriorly to a sharp point between the mesocoxae (Fig. 16G). Metaventrum reticulate with scattered pubescence at lateral margins, posterior margin between metacoxae very short, with two sharp points at corners (Fig. 16H).</p><p>ABDOMEN. Pygidium with three teeth and a row of setae along the anterior border (Fig. 16I).</p><p>FEMALE GENITALIA. Spermatheca elongate (Fig. 16E).</p><p>MALE GENITALIA. Aedeagus narrowing to a short flat tip (Fig. 16D).</p><p><b>Remarks</b></p><p>The close proximity of the metacoxae makes this a marginal choice for placement in <i>Storicricha</i> (see below).</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_5941319 |
| institution | Zenodo |
| language | |
| publishDate | 2019 |
| publisher | Zenodo |
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| spellingShingle | Acrotrichis bidens, sp. nov. Darby, Michael Biodiversity Taxonomy Animalia Arthropoda Insecta Coleoptera Ptiliidae Acrotrichis Acrotrichis bidens <p><b><i>Acrotrichis bidens</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 3B41E644-05C6-48F5-99B5-A128A2AC458E</p><p>Fig. 16</p><p><b>Diagnosis</b></p><p>The short metaventral termination and form of the genitalia distinguish this species.</p><p><b>Etymology</b></p><p>Named after the form of the metaventral termination between the metacoxae.</p><p><b>Type material</b></p><p><b>Holotype</b> MALAYSIA-BORNEO • ♀; Sarawak, 4 th Division, Gunung Mulu National Park; 800–1700 m a.s.l.; 29 Apr. 1978; I. Hanski leg., BM 1978-524; pitfall trap fish bait LMR forest slope 10-12; BMNH.</p><p><b>Paratypes</b> MALAYSIA-BORNEO • 3 specs; same data as for holotype; BMNH.</p><p><b>Description</b></p><p>SIZE. Habitus (Fig. 16A), length 0.73 mm.</p><p>COLOUR. Dark yellowish brown, antennae and legs yellow, dorsal surface densely covered with fine overlapping yellow pubescence.</p><p>HEAD. Distance across eyes 0.29 mm; antennomeres III–XI, length 0.31 mm; mentum and submentum chaetotaxy (Fig. 16F).</p><p>PRONOTUM. Length 0.22 mm, width 0.47 mm, hind angles with a tiny sinuation in the lateral margin creating an acute angle (viewed from 45°).</p><p>ELYTRA. Length 0.46 mm, width 0.47 mm, clearly reticulate.</p><p>VENTRUM. Mesoventrum reticulate, without pubescence, keel obliterated anteriorly before collar, extending posteriorly to a sharp point between the mesocoxae (Fig. 16G). Metaventrum reticulate with scattered pubescence at lateral margins, posterior margin between metacoxae very short, with two sharp points at corners (Fig. 16H).</p><p>ABDOMEN. Pygidium with three teeth and a row of setae along the anterior border (Fig. 16I).</p><p>FEMALE GENITALIA. Spermatheca elongate (Fig. 16E).</p><p>MALE GENITALIA. Aedeagus narrowing to a short flat tip (Fig. 16D).</p><p><b>Remarks</b></p><p>The close proximity of the metacoxae makes this a marginal choice for placement in <i>Storicricha</i> (see below).</p> |
| title | Acrotrichis bidens, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Coleoptera Ptiliidae Acrotrichis Acrotrichis bidens |
| url | https://doi.org/10.5281/zenodo.5941319 |