Labena larae Marinho & Fernandes, 2025, sp. nov.
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2025
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| author | Marinho, Luana S. Fernandes, Daniell R. R. |
| author_facet | Marinho, Luana S. Fernandes, Daniell R. R. |
| contents | <p><b><i>Labena larae</i> sp. nov.</b></p><p>Figs. 52–53</p><p><b>Type material (</b><b>1♀).</b> Holotype. <b>BRAZIL, São Paulo</b>, Luiz Antônio, / Estação Ecológica de Jataí / 21º36’47.4’’S, 47º49’04.1’’W / Mata Ciliar - Light trap. 1./ 16.I.2008, RIR Lara leg. (1♀, LRRP).</p><p><b>Diagnosis.</b> This species can be distinguished from other Neotropical <i>Labena</i> species by the combination of the following characters: Metapleuron centrally with longitudinal striae; mesoscutum with notaulus impressed; propodeum with area superomedia longer than wide, with area postero-externa concave.</p><p><b>Description.</b> Female. Holotype. Body length 20.2 mm, except ovipositor. Overall coloration yellow-orange (Fig. 52A–D) <b>Head</b> (Fig. 52B–C). Without transverse black band between the occipital carina and the occiput; without a transverse black band on the ocellus. Antenna with 49 flagellomeres, measuring 14.8 mm, with compressed apex; flagellum light brown. Mandible bidentate with striate base, upper tooth larger than the lower tooth; mandible basal width 0.50 mm. Malar space width 0.19 mm. Ocellus diameter 0.62 mm; distance between anterior and posterior ocellus of 0.14 mm; shorter distance between posterior ocellus and compound eye of 0.31 mm; distance between the posterior ocelli of 0.28 mm. Compound eyes length 2.12 mm. Frons slightly concave, finely punctate with fine and sparse setae, a width of 1.25 mm. Face very striate, width of 1.27 mm. <b>Wings</b> (Fig. 52A). Fore wing with a length of 16.2 mm, hyaline with a light brown spot at the apex; areolet longer than the length of the distal abscissa of M, with 3rs-m greater than 2rs. Hind wing length 10.2 mm. <b>Mesosoma.</b> Mesoscutum with black border, without three longitudinal black bands, marked notaulus. Pronotum with epomia without punctate upper posterior part and without dense setae. Propleuron punctate and with dense setae. Scuto-scutellar groove black, shallow, with dense setae. Scutellum flat, punctate with dense setae, completely orange-yellow. Metanotum (postscutellum) completely yellow-orange. Propodeum anterior part without transverse band (Fig. 52E); area basalis reduced very longer than wide, funnel-shaped, completely yellow-orange; area externa very longer than wide, without diagonal black spot; area dentipara without spot, well delineated; area postero-externa without spot; area petiolaris obliterated by lateromedian longitudinal carina, without black upper region; area superomedia very longer than wide, with anterior transverse carina delineated, posterior transverse carina delineated; fore legs with a tibial spur, tarsomeres with apical setae fringes; mid legs with medially dilated tibiae, with two tibial spurs, without scattered slender setae on outer surface; hind legs slender, not medially dilated. <b>Metasoma.</b> Tergites I 1.31 mm in length, basal width 0.46 mm and apical width 1.17 mm; tergites II 2.19 mm in length, basal width 1.00 mm and apical width 1.29 mm; tergites III 1.85 mm in length, basal width 1.35 mm and apical width 1.75 mm; metasoma completely reddish-yellow. Ovipositor laterally compressed, apex tapering, transverse striae marked pre-apical; upper valve with marked transverse striae; lower valve with marked longitudinal striae and small proximal teeth.</p><p><b>Male</b>. Unknown.</p><p><b>Etymology.</b> The specific epithet is dedicated to Rogéria Inês Rosa Lara, eminent researcher of Neotropical Hemerobiidae (Neuroptera), who collected the holotype.</p><p><b>Holotype condition</b>. Broken antenna apex.</p><p><b>Host.</b> Unknown.</p><p><b>Distribution.</b> Brazil (<b>São Paulo</b>) (Fig. 53).</p><p><b>Discussion.</b> <i>Labena larae</i> <b>sp. nov.</b> is very similar to <i>Labena striata</i> Townes, 1966, in that both have metapleuron centrally with longitudinal striae, mesoscutum with marked notaulus, and propodeum with elongated area superomedia. However, <i>Labena larae</i> <b>sp. nov.</b> is distinguished by body color being completely orange-yellow, propodeum with the absence of a black spot in the area superomedia, and area dentipara has a rectangular shape. <i>Labena striata</i>, on the other hand, has a yellow body color, propodeum with a black spot in the area superomedia, and area dentipara has a trapezoidal shape. <i>Labena larae</i> <b>sp. nov.</b> was allocated <i>striata</i> species-group.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_16602309 |
| institution | Zenodo |
| language | |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Labena larae Marinho & Fernandes, 2025, sp. nov. Marinho, Luana S. Fernandes, Daniell R. R. Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Ichneumonidae Labena Labena larae <p><b><i>Labena larae</i> sp. nov.</b></p><p>Figs. 52–53</p><p><b>Type material (</b><b>1♀).</b> Holotype. <b>BRAZIL, São Paulo</b>, Luiz Antônio, / Estação Ecológica de Jataí / 21º36’47.4’’S, 47º49’04.1’’W / Mata Ciliar - Light trap. 1./ 16.I.2008, RIR Lara leg. (1♀, LRRP).</p><p><b>Diagnosis.</b> This species can be distinguished from other Neotropical <i>Labena</i> species by the combination of the following characters: Metapleuron centrally with longitudinal striae; mesoscutum with notaulus impressed; propodeum with area superomedia longer than wide, with area postero-externa concave.</p><p><b>Description.</b> Female. Holotype. Body length 20.2 mm, except ovipositor. Overall coloration yellow-orange (Fig. 52A–D) <b>Head</b> (Fig. 52B–C). Without transverse black band between the occipital carina and the occiput; without a transverse black band on the ocellus. Antenna with 49 flagellomeres, measuring 14.8 mm, with compressed apex; flagellum light brown. Mandible bidentate with striate base, upper tooth larger than the lower tooth; mandible basal width 0.50 mm. Malar space width 0.19 mm. Ocellus diameter 0.62 mm; distance between anterior and posterior ocellus of 0.14 mm; shorter distance between posterior ocellus and compound eye of 0.31 mm; distance between the posterior ocelli of 0.28 mm. Compound eyes length 2.12 mm. Frons slightly concave, finely punctate with fine and sparse setae, a width of 1.25 mm. Face very striate, width of 1.27 mm. <b>Wings</b> (Fig. 52A). Fore wing with a length of 16.2 mm, hyaline with a light brown spot at the apex; areolet longer than the length of the distal abscissa of M, with 3rs-m greater than 2rs. Hind wing length 10.2 mm. <b>Mesosoma.</b> Mesoscutum with black border, without three longitudinal black bands, marked notaulus. Pronotum with epomia without punctate upper posterior part and without dense setae. Propleuron punctate and with dense setae. Scuto-scutellar groove black, shallow, with dense setae. Scutellum flat, punctate with dense setae, completely orange-yellow. Metanotum (postscutellum) completely yellow-orange. Propodeum anterior part without transverse band (Fig. 52E); area basalis reduced very longer than wide, funnel-shaped, completely yellow-orange; area externa very longer than wide, without diagonal black spot; area dentipara without spot, well delineated; area postero-externa without spot; area petiolaris obliterated by lateromedian longitudinal carina, without black upper region; area superomedia very longer than wide, with anterior transverse carina delineated, posterior transverse carina delineated; fore legs with a tibial spur, tarsomeres with apical setae fringes; mid legs with medially dilated tibiae, with two tibial spurs, without scattered slender setae on outer surface; hind legs slender, not medially dilated. <b>Metasoma.</b> Tergites I 1.31 mm in length, basal width 0.46 mm and apical width 1.17 mm; tergites II 2.19 mm in length, basal width 1.00 mm and apical width 1.29 mm; tergites III 1.85 mm in length, basal width 1.35 mm and apical width 1.75 mm; metasoma completely reddish-yellow. Ovipositor laterally compressed, apex tapering, transverse striae marked pre-apical; upper valve with marked transverse striae; lower valve with marked longitudinal striae and small proximal teeth.</p><p><b>Male</b>. Unknown.</p><p><b>Etymology.</b> The specific epithet is dedicated to Rogéria Inês Rosa Lara, eminent researcher of Neotropical Hemerobiidae (Neuroptera), who collected the holotype.</p><p><b>Holotype condition</b>. Broken antenna apex.</p><p><b>Host.</b> Unknown.</p><p><b>Distribution.</b> Brazil (<b>São Paulo</b>) (Fig. 53).</p><p><b>Discussion.</b> <i>Labena larae</i> <b>sp. nov.</b> is very similar to <i>Labena striata</i> Townes, 1966, in that both have metapleuron centrally with longitudinal striae, mesoscutum with marked notaulus, and propodeum with elongated area superomedia. However, <i>Labena larae</i> <b>sp. nov.</b> is distinguished by body color being completely orange-yellow, propodeum with the absence of a black spot in the area superomedia, and area dentipara has a rectangular shape. <i>Labena striata</i>, on the other hand, has a yellow body color, propodeum with a black spot in the area superomedia, and area dentipara has a trapezoidal shape. <i>Labena larae</i> <b>sp. nov.</b> was allocated <i>striata</i> species-group.</p> |
| title | Labena larae Marinho & Fernandes, 2025, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Ichneumonidae Labena Labena larae |
| url | https://doi.org/10.5281/zenodo.16602309 |