Tanyxiphium Huber 2015
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2024
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| author | Huber, John T. Read, Jennifer D. Triapitsyn, Serguei V. |
| author_facet | Huber, John T. Read, Jennifer D. Triapitsyn, Serguei V. |
| contents | <p><b><i>TANYXIPHIUM</i> Huber, 2015</b></p><p>(Figs 321–329)</p><p><i>Tanyxiphium</i> Huber, 2015a: 57. Type species: <i>Tanyxiphium seychellense</i> Huber, 2015, by original designation.</p><p><b>Diagnosis</b>. <i>Tanyxiphium</i> is distinguished from the other genera of Gonatocerini by the following combination: mandible small, shorter than maxilla, with teeth minute (Fig. 321a); pronotum short, entire or apparently so (Fig. 324); dorsellum rhomboidal; ovipositor extending beyond gaster (Fig. 325a). Male head wider (Fig. 326a,b) and relatively narrower than in female (Fig. 321a,b); mandibles large, crossing when closed, each with 3 normal teeth (Fig. 326a); pronotum longer than in female, with lateral lobes apparently widely separated due to different colour of median area (Fig. 328).</p><p><b>Remarks</b>. <i>Tanyxiphium</i> belongs to the <i>Gonatocerus</i> group of genera, treated formally as Gonatocerini in Huber (2015a). <i>Tanyxiphium</i> is the only genus of Gonatocerini that shows secondary sexual differences in structure of the head and mouthparts. <i>Tanyxiphium</i> is most similar to <i>Gonatocerus</i> but differs by the mandibles being sexually dimorphic (not so in <i>Gonatocerus</i>), the vertex with 4 setae between the lateral ocelli (2 in <i>Gonatocerus</i>), and the pronotum entire, though appearing divided, with widely separated lateral lobes (medially divided, with lateral lobes abutting at least ventrally in <i>Gonatocerus</i>). It also is similar to <i>Lymaenon</i>, which sometimes has the vertex with 4 setae between lateral ocelli, pronotum with widely separated lateral lobes though in <i>Lymaenon</i> the pronotum really is divided whereas in <i>Tanyxiphium</i> it appears to be entire because its posterior margin does not have any breaks.</p><p><b>Neotropical hosts</b>. Unknown.</p><p><b>Important reference</b>. Huber (2015a).</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_14597307 |
| institution | Zenodo |
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| publishDate | 2024 |
| publisher | Zenodo |
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| spellingShingle | Tanyxiphium Huber 2015 Huber, John T. Read, Jennifer D. Triapitsyn, Serguei V. Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Mymaridae Tanyxiphium <p><b><i>TANYXIPHIUM</i> Huber, 2015</b></p><p>(Figs 321–329)</p><p><i>Tanyxiphium</i> Huber, 2015a: 57. Type species: <i>Tanyxiphium seychellense</i> Huber, 2015, by original designation.</p><p><b>Diagnosis</b>. <i>Tanyxiphium</i> is distinguished from the other genera of Gonatocerini by the following combination: mandible small, shorter than maxilla, with teeth minute (Fig. 321a); pronotum short, entire or apparently so (Fig. 324); dorsellum rhomboidal; ovipositor extending beyond gaster (Fig. 325a). Male head wider (Fig. 326a,b) and relatively narrower than in female (Fig. 321a,b); mandibles large, crossing when closed, each with 3 normal teeth (Fig. 326a); pronotum longer than in female, with lateral lobes apparently widely separated due to different colour of median area (Fig. 328).</p><p><b>Remarks</b>. <i>Tanyxiphium</i> belongs to the <i>Gonatocerus</i> group of genera, treated formally as Gonatocerini in Huber (2015a). <i>Tanyxiphium</i> is the only genus of Gonatocerini that shows secondary sexual differences in structure of the head and mouthparts. <i>Tanyxiphium</i> is most similar to <i>Gonatocerus</i> but differs by the mandibles being sexually dimorphic (not so in <i>Gonatocerus</i>), the vertex with 4 setae between the lateral ocelli (2 in <i>Gonatocerus</i>), and the pronotum entire, though appearing divided, with widely separated lateral lobes (medially divided, with lateral lobes abutting at least ventrally in <i>Gonatocerus</i>). It also is similar to <i>Lymaenon</i>, which sometimes has the vertex with 4 setae between lateral ocelli, pronotum with widely separated lateral lobes though in <i>Lymaenon</i> the pronotum really is divided whereas in <i>Tanyxiphium</i> it appears to be entire because its posterior margin does not have any breaks.</p><p><b>Neotropical hosts</b>. Unknown.</p><p><b>Important reference</b>. Huber (2015a).</p> |
| title | Tanyxiphium Huber 2015 |
| topic | Biodiversity Taxonomy Animalia Arthropoda Insecta Hymenoptera Mymaridae Tanyxiphium |
| url | https://doi.org/10.5281/zenodo.14597307 |