Goodeniacarus Beard & Seeman, 2025, gen. nov.
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2025
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| author | Beard, Jennifer J. Seeman, Owen D. |
| author_facet | Beard, Jennifer J. Seeman, Owen D. |
| contents | <p><b><i>Goodeniacarus</i> gen. nov. Beard & Seeman</b></p><p>Type species: <i>Goodeniacarus rostulatus</i> <b>sp. nov.</b> Beard & Seeman</p><p><b>Diagnosis. Female.</b> Palps 3-segmented; palp tarsus with 2 terminal phaneres (1 long and 1 minute). Anterior margin of prodorsum with small median forked projection forming a notch; dorsal opisthosoma with 7 pairs of setae (<i>c1</i>, <i>c3</i>, <i>d1</i>, <i>d3</i>, <i>e3</i>, <i>f3</i>, <i>h1</i> present; <i>c2</i>, <i>d2</i>, <i>e1</i>, <i>e2</i>, <i>f2, h2</i> absent); dorsal setae short, fine with blunt rounded tips; 1–3 pairs of large pores present on opisthosoma (often with an associated minute pore visible, but difficult to see). Ventral and genital shields not developed, both regions membranous and merged together; 2 pairs of <i>ps</i> setae, anal valves membranous, <i>ps2</i> and <i>ps3</i> inserted longitudinally on anal valves; setae <i>4a</i> elongate fine; lacking supernumerary coxal setae <i>3a2</i> and <i>4a2</i>. Setal formulae for legs I <i>–</i> IV: cx 2-2-1-1, tr 1-1-2-1, fe 4-4-2-1/2, ge 3-3-0-0, ti 5-5-3-3, ta 9(1)-9(1)-5-5 respectively. Trochanter III with seta <i>l′</i> blunt, delayed to adult. Femur IV with seta <i>d</i> present or absent. Setae on genua I–II all added in deutonymph. Tarsus I–II with seta <i>tcʺ</i> delayed to adult. Femora I–IV, genua I–II, tibiae I–IV usually with either or both setae <i>d</i> and <i>l″</i> blunt. Tarsal claws and empodia pad-like.</p><p><b>Remarks.</b> We cannot determine with certainty if the palp phaneres are eupathidia and/or setae. This genus has a thick microplate layer that persists intact even after mounting. This layer often obscures features, especially the minute dorsal pores. The ultrafine detail of this layer can be seen in the images taken using low temperature scanning electron microscopy (LTSEM) in Figures 6, 9, 11, 14, 31.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_15585398 |
| institution | Zenodo |
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| publishDate | 2025 |
| publisher | Zenodo |
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| spellingShingle | Goodeniacarus Beard & Seeman, 2025, gen. nov. Beard, Jennifer J. Seeman, Owen D. Biodiversity Taxonomy Animalia Arthropoda Arachnida Trombidiformes Tenuipalpidae Goodeniacarus <p><b><i>Goodeniacarus</i> gen. nov. Beard & Seeman</b></p><p>Type species: <i>Goodeniacarus rostulatus</i> <b>sp. nov.</b> Beard & Seeman</p><p><b>Diagnosis. Female.</b> Palps 3-segmented; palp tarsus with 2 terminal phaneres (1 long and 1 minute). Anterior margin of prodorsum with small median forked projection forming a notch; dorsal opisthosoma with 7 pairs of setae (<i>c1</i>, <i>c3</i>, <i>d1</i>, <i>d3</i>, <i>e3</i>, <i>f3</i>, <i>h1</i> present; <i>c2</i>, <i>d2</i>, <i>e1</i>, <i>e2</i>, <i>f2, h2</i> absent); dorsal setae short, fine with blunt rounded tips; 1–3 pairs of large pores present on opisthosoma (often with an associated minute pore visible, but difficult to see). Ventral and genital shields not developed, both regions membranous and merged together; 2 pairs of <i>ps</i> setae, anal valves membranous, <i>ps2</i> and <i>ps3</i> inserted longitudinally on anal valves; setae <i>4a</i> elongate fine; lacking supernumerary coxal setae <i>3a2</i> and <i>4a2</i>. Setal formulae for legs I <i>–</i> IV: cx 2-2-1-1, tr 1-1-2-1, fe 4-4-2-1/2, ge 3-3-0-0, ti 5-5-3-3, ta 9(1)-9(1)-5-5 respectively. Trochanter III with seta <i>l′</i> blunt, delayed to adult. Femur IV with seta <i>d</i> present or absent. Setae on genua I–II all added in deutonymph. Tarsus I–II with seta <i>tcʺ</i> delayed to adult. Femora I–IV, genua I–II, tibiae I–IV usually with either or both setae <i>d</i> and <i>l″</i> blunt. Tarsal claws and empodia pad-like.</p><p><b>Remarks.</b> We cannot determine with certainty if the palp phaneres are eupathidia and/or setae. This genus has a thick microplate layer that persists intact even after mounting. This layer often obscures features, especially the minute dorsal pores. The ultrafine detail of this layer can be seen in the images taken using low temperature scanning electron microscopy (LTSEM) in Figures 6, 9, 11, 14, 31.</p> |
| title | Goodeniacarus Beard & Seeman, 2025, gen. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Arachnida Trombidiformes Tenuipalpidae Goodeniacarus |
| url | https://doi.org/10.5281/zenodo.15585398 |