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Onychogomphus costae in Andalusia, southern Spain - Mapping an overlooked species (Odonata: Gomphidae)

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  • AEA El Bosque Animado

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Onychogomphus costae is an Ibero-Maghrebian endemic, which is rare in the Ibe-rian Peninsula. This study updates its distribution in Andalusia, southern Spain, based on a targeted survey carried out in 2015-2017 and the compilation of all available records. The species appears to be more widespread than previously documented, with a core distribution along the river Guadalquivir and its tributaries in the province of Córdoba. The altitudinal distribution of Onychogomphus costae reflects its general preferences for permanent, seasonally flooding, lowland rivers. The period of most observations of adults stretches over two months from mid-May to mid-July. Factors likely to explain why the species has been overlooked in past decades are discussed. These include recording effort, habitat features, adult behaviour, larval ecology and general water quality.
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... El género Onychogomphus Selys, 1854 contaba en la península ibérica con tres especies de anisópteros de carácter reófilo: Onychogomphus uncatus (Charpentier, 1840), Onychogomphus forcipatus (Linnaeus, 1758) y Onychogomphus costae Selys, 1885, esta última muy escasa a nivel penin-sular e incluida en la Lista Roja de los Invertebrados de España en la categoría "Vulnerable" (Prunier 2018, Verdú et al. 2011. Con el reciente descubrimiento de O. cazuma, se eleva a cuatro el número de especies del género para el territorio peninsular (Boudot & Kalkman 2015, López-Estrada et al. 2020. ...
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