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| Formaat: | Recurso digital |
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Zenodo
2018
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| Online toegang: | https://doi.org/10.5281/zenodo.5986242 |
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- <p><b><i>Camafroneta</i> gen. nov.</b></p><p>urn:lsid:zoobank.org:act:A9911BE3-8F58-4BBB-BC5C-7116B2ECA337</p><p><b>Type species</b></p><p><i>Camafroneta oku</i> gen. et sp. nov. by monotypy and present designation.</p><p><b>Diagnosis</b></p><p>Typical mynoglenine spiders with faint subocular sulci below ALE. With unusual genitalia and three instead of one trichobothrium on metatarsus I, which is unique within Linyphiidae. See section below for a description of the only known species in this genus.</p><p><b>Etymology</b></p><p>The name <i>Camafroneta</i> is an arbitrary combination of the abbreviation ‘Cam’ for the country Cameroon and the existing genus name <i>Afroneta</i> Holm, 1968. The gender of the name should be considered feminine. We follow the tradition within the subfamily Mynogleninae of including the name <i>Afroneta</i> in the new genus name.</p><p><b>Remarks</b></p><p>The phylogenetic analysis placed this species as sister to <i>Laminafroneta</i> Merrett, 2004 (see discussion of phylogeny under description of <i>Camafroneta oku</i> gen. et sp. nov.).</p><p>Merrett (2004) diagnosed the genus <i>Laminafroneta</i> by the males having an embolic membrane (conductor) that partly encircles the embolus (Merrett 2004: fig. 86) and the females having a broad, triangular, partly sclerotised dorsal plate (Merrett 2004: figs 87–88). The males of <i>Camafroneta</i> gen. nov. share the partly encircled shape of the embolic membrane, but this is also present in <i>Afroneta tenuivulva</i> Merrett, 2004 to a lesser extend and in most mynoglenines from New Zealand. The shape of the epigyne of <i>Laminafroneta</i> is very different from anything else known from mynoglenines, while that of <i>Camafroneta</i> gen. nov. resembles the one of <i>Afroneta lobeliae</i> Merrett, 2004 (Merrett 2004: fig. 28) and many other mynoglenines, especially from New Zealand. Including <i>Camafroneta</i> gen. nov. in <i>Laminafroneta</i> is, therefore, not justified.</p><p>Establishing a monotypic genus is unfortunate, because the genus will not add any grouping information until new species will be assigned to the genus. However, African mynoglenines are not well known and we probably only know a fraction of the existing taxa, especially from western Africa, where <i>Camafroneta</i> gen. nov. was found.</p><p>The most unique character present in <i>Camafroneta</i> gen. nov. are three trichobothria on metatarsus I (this was the case in all examined specimens of <i>Camafroneta oku</i> gen. et sp. nov.). The position of the trichobothrium on metatarsus I is one of the standard characters used to identify linyphiid spiders (see, e.g., Roberts 1987: tables A–D) and is routinely checked. The presence of more than one trichobothrium on metatarsus I is not known for any other linyphiid and is, therefore, unique to <i>Camafroneta</i> gen. nov. See more diagnostic details on the conformation of the male and female copulatory organs in the species diagnosis section below.</p>