Psalidothrips trivius Wang & Mound & Tree 2019, sp.n.
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| author | Wang, Jun Mound, Laurence A. Tree, Desley J. |
| author_facet | Wang, Jun Mound, Laurence A. Tree, Desley J. |
| contents | <p><b><i>Psalidothrips trivius</i> sp.n.</b></p><p>(Figs 12, 16, 35)</p><p><i>Female aptera</i>. Body light brown, head darker, darkest at apex of head, thorax lighter but shaded with brown laterally, abdominal segment IX and tube a little lighter than rest of abdomen; legs mainly yellow; antennae yellow, but segment I brown, II and VIII weakly shaded. Head without sculpture medially but with few lines laterally; genae weakly constricted behind eyes, without strong internal apodeme behind compound eyes; ocelli absent; compound eyes with 2 large and 1 small facets; postocular setae long and bluntly pointed, longer than half the distance between their bases; postocellar setae minute; maxillary stylets about two-thirds of head width apart, retracted half way to postocular setae (Fig. 12). Antennal segment III with 1 sense cone that is often minute, IV with 2 slender sense cones, III–VIII each with pedicel; segment III longer than IV, VIII longer than VII (Fig. 35). Pronotum without sculpture; setae aa, ml, epim and pa well-developed, am as long as median discal setae. Mesonotum with transverse sculpture near anterior margin; metanotum without sculpture. Mesopresternum absent, mesoeusternal anterior margin weakly eroded. Fore tarsal tooth absent. Pelta broad across tergite II with sculpture at anterior, campaniform sensilla absent; tergites II–VII each with one pair of minute straight wing-retaining setae; median setae minute on II–VII but long on VIII; tergite IX setae S1 as long as tube, anal setae as long as tube. Sternites with 3–5 pairs of minute discal setae.</p><p><b>Measurements</b> (holotype female in microns). Body length 1890. Head, length 168; basal width 176; postocular setae 76, distance between their bases 130; postocellar setae 28, distance between their bases 58. Pronotum, length 153; median width 258; major setae am 10, aa 37, ml 67, epim 70, pa 75. Mesonotum posteromarginal setae 15. Metanotum median setae 21. Tergite IV median marginal setae 103; tergite VIII median setae 58, tergite IX setae S1 118, S2 100. Tube length 117; anal setae 122. Antennal segments III–VIII length 50, 46, 48, 51, 45, 52.</p><p><i>Male aptera</i>. Similar to female but smaller; fore femora larger and tarsal tooth present (Fig. 16); sternite VIII pore plate transverse and slender, almost reaching lateral margins of sternite.</p><p><b>Measurements</b> (in microns). Body length 1590.Head, length 150; width 151; postocular setae53, postocellar setae 15. Pronotum, length 150; median width 225; major setae am 8, aa 25, ml 61, epim 53, pa 55. Tergite VIII median setae 40. Tergite IX setae S1 95, S2 75. Tube length 107; anal setae 108. Antennal segments III–VIII length 45, 38, 43, 47, 37, 48.</p><p><b>Specimens studied.</b> Holotype female aptera. <b>Queensland</b>, Brisbane Forest Park, Centre Rd., from litter, 26.iii.2008 (DJT 930), in ANIC.</p><p>Paratypes: 10 females, 7 males, same data as holotype.</p><p><b>Comments.</b> The body structure and sclerites of this species are similarly to <i>tritus</i>. However, it has the pronotal aa setae longer, only one sense cone on antennal segment III and lacks the strong internal apodeme behind the compound eyes that is typical of <i>tritus</i> and related species.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_5943050 |
| institution | Zenodo |
| language | |
| publishDate | 2019 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Psalidothrips trivius Wang & Mound & Tree 2019, sp.n. Wang, Jun Mound, Laurence A. Tree, Desley J. Biodiversity Taxonomy Animalia Arthropoda Insecta Thysanoptera Phlaeothripidae Psalidothrips Psalidothrips trivius <p><b><i>Psalidothrips trivius</i> sp.n.</b></p><p>(Figs 12, 16, 35)</p><p><i>Female aptera</i>. Body light brown, head darker, darkest at apex of head, thorax lighter but shaded with brown laterally, abdominal segment IX and tube a little lighter than rest of abdomen; legs mainly yellow; antennae yellow, but segment I brown, II and VIII weakly shaded. Head without sculpture medially but with few lines laterally; genae weakly constricted behind eyes, without strong internal apodeme behind compound eyes; ocelli absent; compound eyes with 2 large and 1 small facets; postocular setae long and bluntly pointed, longer than half the distance between their bases; postocellar setae minute; maxillary stylets about two-thirds of head width apart, retracted half way to postocular setae (Fig. 12). Antennal segment III with 1 sense cone that is often minute, IV with 2 slender sense cones, III–VIII each with pedicel; segment III longer than IV, VIII longer than VII (Fig. 35). Pronotum without sculpture; setae aa, ml, epim and pa well-developed, am as long as median discal setae. Mesonotum with transverse sculpture near anterior margin; metanotum without sculpture. Mesopresternum absent, mesoeusternal anterior margin weakly eroded. Fore tarsal tooth absent. Pelta broad across tergite II with sculpture at anterior, campaniform sensilla absent; tergites II–VII each with one pair of minute straight wing-retaining setae; median setae minute on II–VII but long on VIII; tergite IX setae S1 as long as tube, anal setae as long as tube. Sternites with 3–5 pairs of minute discal setae.</p><p><b>Measurements</b> (holotype female in microns). Body length 1890. Head, length 168; basal width 176; postocular setae 76, distance between their bases 130; postocellar setae 28, distance between their bases 58. Pronotum, length 153; median width 258; major setae am 10, aa 37, ml 67, epim 70, pa 75. Mesonotum posteromarginal setae 15. Metanotum median setae 21. Tergite IV median marginal setae 103; tergite VIII median setae 58, tergite IX setae S1 118, S2 100. Tube length 117; anal setae 122. Antennal segments III–VIII length 50, 46, 48, 51, 45, 52.</p><p><i>Male aptera</i>. Similar to female but smaller; fore femora larger and tarsal tooth present (Fig. 16); sternite VIII pore plate transverse and slender, almost reaching lateral margins of sternite.</p><p><b>Measurements</b> (in microns). Body length 1590.Head, length 150; width 151; postocular setae53, postocellar setae 15. Pronotum, length 150; median width 225; major setae am 8, aa 25, ml 61, epim 53, pa 55. Tergite VIII median setae 40. Tergite IX setae S1 95, S2 75. Tube length 107; anal setae 108. Antennal segments III–VIII length 45, 38, 43, 47, 37, 48.</p><p><b>Specimens studied.</b> Holotype female aptera. <b>Queensland</b>, Brisbane Forest Park, Centre Rd., from litter, 26.iii.2008 (DJT 930), in ANIC.</p><p>Paratypes: 10 females, 7 males, same data as holotype.</p><p><b>Comments.</b> The body structure and sclerites of this species are similarly to <i>tritus</i>. However, it has the pronotal aa setae longer, only one sense cone on antennal segment III and lacks the strong internal apodeme behind the compound eyes that is typical of <i>tritus</i> and related species.</p> |
| title | Psalidothrips trivius Wang & Mound & Tree 2019, sp.n. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Thysanoptera Phlaeothripidae Psalidothrips Psalidothrips trivius |
| url | https://doi.org/10.5281/zenodo.5943050 |