Taxonomy of the genera Scaeva, Simosyrphus and Ischiodon (Diptera: Syrphidae): descriptions of immature stages and status of taxa

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Título: Taxonomy of the genera Scaeva, Simosyrphus and Ischiodon (Diptera: Syrphidae): descriptions of immature stages and status of taxa
Autor/es: Láska, Pavel | Pérez-Bañón, Celeste | Mazánek, Libor | Rojo, Santos | Ståhls, Gunilla | Marcos-García, M. Ángeles | Bicik, Vitezslav | Dusek, Jindra
Grupo/s de investigación o GITE: Bionomía, Sistemática e Investigación Aplicada de Insectos Dípteros e Himenópteros
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Ciencias Ambientales y Recursos Naturales | Universidad de Alicante. Centro Iberoamericano de la Biodiversidad | Palacky University. Department of Zoology | Finnish Museum of Natural History | University of Agriculture (Zemedelská). Institute of Applied Entomology
Palabras clave: Diptera | Syrphidae | Scaeva | Semiscaeva | Mecoscaeva | Simosyrphus | Ischiodon | Taxonomy | Immature morphology | Chaetotaxy | New combination | New synonymy
Área/s de conocimiento: Zoología | Entomología | Morfología
Fecha de creación: 1-feb-2005
Fecha de publicación: 3-jul-2006
Editor: Czech Academy of Sciences. Institute of Entomology | Czech Entomological Society
Cita bibliográfica: LÁSKA, Pavel, et al. "Taxonomy of the genera Scaeva, Simosyrphus and Ischiodon (Diptera: Syrphidae): descriptions of immature stages and status of taxa". European Journal of Entomology. Vol. 103, No. 3 (2006). ISSN 1210-5759, pp. 637-655
Serie/Informe nº: IBAI | 32
Resumen: A review of all known descriptions of immature stages of the species of the genera Scaeva Fabricius, 1805, Ischiodon Sack, 1913 and Simosyrphus Bigot, 1882 is presented using SEM illustrations. The third instar larval and/or pupal morphology of Scaeva dignota (Rondani, 1857), Scaeva mecogramma (Bigot, 1860) and Simosyrphus grandicornis (Macquart, 1842) are newly described. All species of the genera studied in this paper are very similar for all the studied characters of their immature stages, including the chaetotaxy. Molecular characters of the mitochondrial cox1 gene (1128bp) were used for inferring relationships of the studied taxa. The nuclear internal transcribed spacer 2 (ITS2) was additionally applied for species delimitation of the closely related species Scaeva selenitica and S. dignota. The Palaearctic Scaeva species could be split into two groups based on the analysis of morphology of posterior respiratory process. These groups were previously diagnosed as S. selenitica-group [i.e., S. selenitica (Meigen, 1822), S. dignota (Rondani, 1857), S. mecogramma (Bigot, 1860)] and S. pyrastri-group [i.e., S. pyrastri (Linnaeus, 1758), S. albomaculata (Macquart, 1842), S. latimaculata (Brunetti, 1923)]. Semiscaeva Kuznetzov, 1985 and Scaeva Fabricius, 1805 are the available names for these two natural groups that should be classified as subgenera; the former name is proposed for S. selenitica-group and the latter for S. pyrastri-group. Mecoscaeva Kuznetzov, 1985 syn. n. is transferred as a junior synonym of the subgenus Semiscaeva Kuznetzov, 1985 according to the principle of the first reviser. Based on the analysis of immature stages, the generic name Ischiodon Sack, 1913 syn. n. is proposed as a junior synonym of the genus Simosyrphus Bigot, 1882. The similarity of immature stages between Scaeva s. str. And Simosyrphus grandicornis Macquart, 1842, Simosyrphusaegyptius (Wiedemann, 1830) comb. n. and Simosyrphus scutellaris (Fabricius, 1805) comb. n. is discussed. All the proposed subgeneric and generic taxa based on morphological studies received high support employing molecular characters.
Patrocinador/es: Financial support was provided by the Spanish Ministry of Environment (040/2002) (C. P-B., M-G.), University of Alicante, Spain (GRE04-25) (C. P-B., S.R) and from Finnish Ministry of Environment (G.S.).
URI: http://hdl.handle.net/10045/9628
ISSN: 1210-5759 (Print) | 1802-8829 (Online)
Idioma: eng
Tipo: info:eu-repo/semantics/article
Revisión científica: si
Aparece en las colecciones:INV - IBAI-DH - Artículos Científicos / Scientific Papers
INV - BBaBC - Artículos de Revistas

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