| _version_ | 1866902208189038592 |
|---|---|
| author | Gustafsson, Daniel R. Clayton, Dale H. Bush, Sarah E. |
| author_facet | Gustafsson, Daniel R. Clayton, Dale H. Bush, Sarah E. |
| contents | <p><b><i>Guimaraesiella</i> (<i>Cicchinella</i>) <i>mcgrewi</i> Gustafsson, Clayton & Bush, new species</b></p><p>(Figs 82–89)</p><p><b>Type host.</b> <i>Alcippe morrisonia</i> Swinhoe, 1863 —grey-cheeked fulvetta (Leiothrichidae).</p><p><b>Type locality.</b> Shiwan Dashan National Park, Guangxi Province, China.</p><p><b>Diagnosis.</b> <i>Guimaraesiella</i> (<i>C.</i>) <i>mcgrewi</i> is most similar to <i>Guimaraesiella</i> (<i>C.</i>) <i>iuga</i> (see below) with which it shares the following characters: (1) proximal mesosome widening proximally, with concave lateral margins and convex anterior margin (Figs 87, 94); (2) rugose area of mesosome forms distinct nodi that protrude beyond margin of mesosome (Figs 87, 94); and (3) gonopore distinct, with no comb-like lateral structures (Figs 87, 94). However, these two species can be separated by the following characters: (1) mesosome broader and with flatter anterior margin in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 87) than in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 94); (2) gonopore small, with triangular posterolateral extensions in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 87) but with quadratic antero-lateral extensions in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 94); (3) basal apodeme more slender in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 93) than in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 86); (4) parameral heads with prominent anterior bulge in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 88) but with only slight anterior bulge in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 95); (5) dorsal preantennal suture reaches lateral margin of head in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 84) but not in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 92); (6) female tergopleurite XI fused with tergopleurite IX+X in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 83) but not fused in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 91); and (7) antennae sexually dimorphic in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Figs 84–85) but not dimorphic in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 92).</p><p><b>Description. <i>Both sexes.</i></b> Head broadly bulb-shaped (Fig. 84). Lateral margins of preantennal head concave. Dorsal preantennal suture reaches lateral margins of head, but does not completely separate dorsal anterior plate from main head plate. Head chaetotaxy as in Fig. 84; <i>pns</i> microsetae. Coni long and broad, not reaching distal margin of scape. Antennae sexually dimorphic. Gular plate sinuously triangular. Thoracic and abdominal segments as in Figs 82–83. Reentrant heads of pleurites broad and long.</p><p><i>Male.</i> Scape as in Fig. 84. Thoracic and abdominal chaetotaxy as in Fig. 82. Genitalia as in Figs 86–88. Basal apodeme broad (Fig. 86), widening distally, with rounded proximal margin. Proximal mesosome trapezoidal (Fig. 87), widening proximally, with concave lateral margins and slightly convex proximal margin. Ventral sclerite absent. Mesosomal lobes wide, convex. Marginal thickenings of mesosomal lobes displaced medianly in anterior end. Rugose area forms distinct nodus on each side, extending beyond mesosomal margin. Elongated nodi on distal end of mesosome. Gonopore with pointed postero-lateral extensions; <i>ames</i> and <i>gpmes</i> not visible in examined material; 1 <i>lpmes</i> microseta visible on each side, anterior to rugose nodi; second <i>lpmes</i> may be obscured by rugose nodi. Parameral heads much displaced posteriorly (Fig. 88); anterior bulge large. Parameral blades broad, tapering only distally; <i>pst1–2</i> far apart. Measurements (n = 2): TL = 1.26–1.27; HL = 0.34; HW = 0.35–0.36; PRW = 0.21– 0.22; PTW = 0.32; AW = 0.48–0.49.</p><p><i>Female.</i> Scape as in Fig. 85. Thoracic and abdominal chaetotaxy as in Fig. 83. Tergopleurite IX+X fused medially with tergopleurite XI (Fig. 83). Subgenital plate as in Fig. 89, without reticulation; cross-piece with narrow connection to subgenital plate. Vulval margin (Fig. 89) convergent to median point, with 3–4 short, slender <i>vms</i> on each side, and 7–8 short, thorn-like <i>vss</i> on each side; 4–5 <i>vos</i> on each side; distal <i>vos</i> situated anterior to <i>vss</i>. Measurements (n = 2 except AW where n = 1): TL = 1.60–1.66; HL = 0.37–0.38; HW = 0.39–0.40; PRW = 0.22; PTW = 0.35; AW = 0.48.</p><p><b>Etymology.</b> The species epithet is in honor of Stanley E. McGrew (Mountain Green, Utah, U.S.A.), in recognition of his interest in, and support for, all things scientific.</p><p><b>Type material.</b> Ex <b><i>Alcippe morrisonia</i>: Holotype</b> ♂, Shiwan Dashan National Park, Guangxi Province, China, 20 Apr. 2005, S.E. Bush & D.H. Clayton, P-879 (NHML). <b>Paratypes:</b> 1♂, 2♀, same data as holotype (PIPeR).</p><p><b>Remarks.</b> Following Zou <i>et al.</i> (2007), many recent checklists—including Clements <i>et al</i>. (2017) —have divided <i>Alcippe morrisonia</i> into several species, with <i>A. morrisonia</i> restricted to Taiwan and <i>A. davidi schaefferi</i> La Touche, 1923, occurring in Guangxi. However, on recommendation from Mark B. Robbins (pers. comm., 2017), who identified the hosts, we retain the type host species as <i>Alcippe morrisonia</i>, considering that the taxonomy of this complex is still not well known.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_5936038 |
| institution | Zenodo |
| language | |
| publishDate | 2019 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Guimaraesiella (Cicchinella) mcgrewi Gustafsson, Clayton, new species Gustafsson, Daniel R. Clayton, Dale H. Bush, Sarah E. Biodiversity Taxonomy Animalia Arthropoda Insecta Phthiraptera Philopteridae Guimaraesiella <p><b><i>Guimaraesiella</i> (<i>Cicchinella</i>) <i>mcgrewi</i> Gustafsson, Clayton & Bush, new species</b></p><p>(Figs 82–89)</p><p><b>Type host.</b> <i>Alcippe morrisonia</i> Swinhoe, 1863 —grey-cheeked fulvetta (Leiothrichidae).</p><p><b>Type locality.</b> Shiwan Dashan National Park, Guangxi Province, China.</p><p><b>Diagnosis.</b> <i>Guimaraesiella</i> (<i>C.</i>) <i>mcgrewi</i> is most similar to <i>Guimaraesiella</i> (<i>C.</i>) <i>iuga</i> (see below) with which it shares the following characters: (1) proximal mesosome widening proximally, with concave lateral margins and convex anterior margin (Figs 87, 94); (2) rugose area of mesosome forms distinct nodi that protrude beyond margin of mesosome (Figs 87, 94); and (3) gonopore distinct, with no comb-like lateral structures (Figs 87, 94). However, these two species can be separated by the following characters: (1) mesosome broader and with flatter anterior margin in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 87) than in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 94); (2) gonopore small, with triangular posterolateral extensions in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 87) but with quadratic antero-lateral extensions in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 94); (3) basal apodeme more slender in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 93) than in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 86); (4) parameral heads with prominent anterior bulge in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 88) but with only slight anterior bulge in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 95); (5) dorsal preantennal suture reaches lateral margin of head in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 84) but not in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 92); (6) female tergopleurite XI fused with tergopleurite IX+X in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Fig. 83) but not fused in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 91); and (7) antennae sexually dimorphic in <i>G.</i> (<i>C.</i>) <i>mcgrewi</i> (Figs 84–85) but not dimorphic in <i>G.</i> (<i>C.</i>) <i>iuga</i> (Fig. 92).</p><p><b>Description. <i>Both sexes.</i></b> Head broadly bulb-shaped (Fig. 84). Lateral margins of preantennal head concave. Dorsal preantennal suture reaches lateral margins of head, but does not completely separate dorsal anterior plate from main head plate. Head chaetotaxy as in Fig. 84; <i>pns</i> microsetae. Coni long and broad, not reaching distal margin of scape. Antennae sexually dimorphic. Gular plate sinuously triangular. Thoracic and abdominal segments as in Figs 82–83. Reentrant heads of pleurites broad and long.</p><p><i>Male.</i> Scape as in Fig. 84. Thoracic and abdominal chaetotaxy as in Fig. 82. Genitalia as in Figs 86–88. Basal apodeme broad (Fig. 86), widening distally, with rounded proximal margin. Proximal mesosome trapezoidal (Fig. 87), widening proximally, with concave lateral margins and slightly convex proximal margin. Ventral sclerite absent. Mesosomal lobes wide, convex. Marginal thickenings of mesosomal lobes displaced medianly in anterior end. Rugose area forms distinct nodus on each side, extending beyond mesosomal margin. Elongated nodi on distal end of mesosome. Gonopore with pointed postero-lateral extensions; <i>ames</i> and <i>gpmes</i> not visible in examined material; 1 <i>lpmes</i> microseta visible on each side, anterior to rugose nodi; second <i>lpmes</i> may be obscured by rugose nodi. Parameral heads much displaced posteriorly (Fig. 88); anterior bulge large. Parameral blades broad, tapering only distally; <i>pst1–2</i> far apart. Measurements (n = 2): TL = 1.26–1.27; HL = 0.34; HW = 0.35–0.36; PRW = 0.21– 0.22; PTW = 0.32; AW = 0.48–0.49.</p><p><i>Female.</i> Scape as in Fig. 85. Thoracic and abdominal chaetotaxy as in Fig. 83. Tergopleurite IX+X fused medially with tergopleurite XI (Fig. 83). Subgenital plate as in Fig. 89, without reticulation; cross-piece with narrow connection to subgenital plate. Vulval margin (Fig. 89) convergent to median point, with 3–4 short, slender <i>vms</i> on each side, and 7–8 short, thorn-like <i>vss</i> on each side; 4–5 <i>vos</i> on each side; distal <i>vos</i> situated anterior to <i>vss</i>. Measurements (n = 2 except AW where n = 1): TL = 1.60–1.66; HL = 0.37–0.38; HW = 0.39–0.40; PRW = 0.22; PTW = 0.35; AW = 0.48.</p><p><b>Etymology.</b> The species epithet is in honor of Stanley E. McGrew (Mountain Green, Utah, U.S.A.), in recognition of his interest in, and support for, all things scientific.</p><p><b>Type material.</b> Ex <b><i>Alcippe morrisonia</i>: Holotype</b> ♂, Shiwan Dashan National Park, Guangxi Province, China, 20 Apr. 2005, S.E. Bush & D.H. Clayton, P-879 (NHML). <b>Paratypes:</b> 1♂, 2♀, same data as holotype (PIPeR).</p><p><b>Remarks.</b> Following Zou <i>et al.</i> (2007), many recent checklists—including Clements <i>et al</i>. (2017) —have divided <i>Alcippe morrisonia</i> into several species, with <i>A. morrisonia</i> restricted to Taiwan and <i>A. davidi schaefferi</i> La Touche, 1923, occurring in Guangxi. However, on recommendation from Mark B. Robbins (pers. comm., 2017), who identified the hosts, we retain the type host species as <i>Alcippe morrisonia</i>, considering that the taxonomy of this complex is still not well known.</p> |
| title | Guimaraesiella (Cicchinella) mcgrewi Gustafsson, Clayton, new species |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Phthiraptera Philopteridae Guimaraesiella |
| url | https://doi.org/10.5281/zenodo.5936038 |