&lt;p&gt;&lt;strong&gt;A new species of &lt;em&gt;Prosyntexis&lt;/em&gt; Sharkey, 1990 (Hymenoptera: Sepulcidae) from the Lower Cretaceous Crato Formation of Brazil confirmed by geometric morphometric analysis&lt;/strong&gt;&lt;/p&gt;

Jouault, Corentin; Nel, André

doi:10.11646/palaeoentomology.4.2.6

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Although GMA has been used widely in systematic studies of extinct organisms, its application on fossil insects is relatively scarce (e.g., Lin et al, 2016; Shih et al, 2017; Jouault and Nel, 2021). We herein provide a new case study on GMA for fossil insects, especially on the data with only wing venations included.…”

Section: Discussionmentioning

confidence: 99%

Geometric morphometric analysis for the systematic elucidation of new Hylicellidae from the Jurassic of China (Hemiptera: Cicadomorpha)

et al. 2022

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The extinct family Hylicellidae, as the ancestral group of modern cicadomorphans, had a wide distribution and a very high species-level biodiversity from the Triassic to Early Cretaceous. We herein report 11 new hylicellid specimens from the Jurassic Daohugou beds of Inner Mongolia, NE China, and execute geometric morphometric analysis (GMA) to elucidate their systematic position. Our GMA and subsequent morphometric statistics indicate that 10 of our new specimens can be compared to the holotype of Cycloscytina gobiensis, and one is new to science. Cycloscytina incompleta new species is erected based on this specimen, with the following discriminatory tegminal traits: C3 almost as long as and slightly narrower than C2, and the forking position of stem M distinctly migrates towards wing apex and much apicad of the stem CuA bifurcating. Additionally, Cycloscytina plachutai is herein transferred to the procercopid genus Procercopina, resulting in P. plachutai new combination. To date, just a few body structures of Hylicellidae have been revealed, and the new whole-bodied hylicellids reported herein provide some novel insights on the evolution of basal Clypeata. This study also emphasizes the use of morphometric analysis in the systematics of wing-bearing insects such as hylicellids. UUID: http://zoobank.org/84a67eba-9b7c-4e27-a436-764802c4cdfb.

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Section: Discussionmentioning

confidence: 99%

Geometric morphometric analysis for the systematic elucidation of new Hylicellidae from the Jurassic of China (Hemiptera: Cicadomorpha)

et al. 2022

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Species morphospace boundary revisited through wing phenotypic variations of Antodynerus species (Hymenoptera: Vespidae: Eumeninae) from the Indian subcontinent

et al. 2023

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The main objective of this study was to investigate the taxonomic significance of wing phenotypic variations (size and shape) for classifying potter wasps. This is the first study investigating the wing size and shape variations, as well as wing asymmetry, sexual dimorphism, wing integration, and phylogenetic signal analysis of all known Antodynerus species from the Indian subcontinent: A. flavescens, A. limbatus, and A. punctatipennis. We used forewings and hindwings for geometric morphometric analysis, and we proved that each species’ wing had unique size and shape variations, as well as significant right–left wing asymmetry and sexual dimorphism across the Antodynerus species, as verified by discriminant function analysis. Wings of Vespidae are longitudinally folded; based on that, we tested two alternative wing modular hypotheses for evaluating the wing integration, using two subsets organization, such as anterior–posterior (AP) and proximal-distal (PD) wing modular organization. We proved that Antodynerus species wings are highly integrated units (RV > 0.5), and we rejected our hypothesis at p < 0.05. The morphospace distribution analysis revealed that each species has its unique morphospace boundary, although they share some level of homoplasy, which suggests to us that we can use wing morphometric traits for Antodynerus species delimitation. In addition, we revealed the phylogenetic signal of Antodynerus species. Surprisingly, we found a shape-related phylogenetic signal in the forewing, and there is no significant (p > 0.05) phylogenetic signal in forewing size, hindwing shape, and size. We observed that the Antodynerus species’ forewing shape is evolutionarily more highly constrained than the hindwing. We found that A. limbatus and A. flavescens with distinct geographical distribution share a similar evolutionary history, while A. punctatipennis evolved independently.

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<p><strong>A new species of <em>Prosyntexis</em> Sharkey, 1990 (Hymenoptera: Sepulcidae) from the Lower Cretaceous Crato Formation of Brazil confirmed by geometric morphometric analysis</strong></p>

Cited by 2 publications

References 10 publications

Geometric morphometric analysis for the systematic elucidation of new Hylicellidae from the Jurassic of China (Hemiptera: Cicadomorpha)

Geometric morphometric analysis for the systematic elucidation of new Hylicellidae from the Jurassic of China (Hemiptera: Cicadomorpha)

Species morphospace boundary revisited through wing phenotypic variations of Antodynerus species (Hymenoptera: Vespidae: Eumeninae) from the Indian subcontinent

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