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espanolLos caballitos del diablo y las libelulas (Insecta: Odonata) enfrentan varias amenazas. Una herramienta para evaluar riesgo, es el area de distribucion. Usamos el modelado de nicho ecologico para estimar el rango de distribucion de 6 especies de caballitos del diablo del genero Argia, en Norte America: A. cuprea, A. funcki, A. garrisoni, A. harknessi, A. munda y A. rhoadsi. Estas especies no estan incluidas en la Lista Roja de la Union Internacional para la Conservacion de la Naturaleza (UICN), excepto A. garrisoni que se categorizo como de preocupacion menor (“least concern”). Nuestros resultados indicaron distribuciones amplias para todas las especies, excepto A. garrisoni (8,038 km² despues de un analisis refinado de habitat disponible). Una distribucion amplia puede explicarse por propiedades de nicho similares en todas las especies. Este no es el caso para A. garrisoni cuya situacion es preocupante. Esta especie se encontro en el estado mexicano de San Luis Potosi en 1999 y no se ha recolectado desde entonces por lo que deberia buscarse para saber si sus poblaciones estan en riesgo. Mientras tanto, y de acuerdo a los criterios de la UICN, A. garrisoni deberia ser incluida en la categoria de vulnerable. EnglishDamselflies and dragonflies (Insecta: Odonata) are currently facing a number of threats. One tool to provide a straightforward assessment of risk is distribution area. Here we have used ecological niche modeling to estimate distribution range for 6 species of Argia damselflies distributed in North America: A. cuprea, A. funcki, A. garrisoni, A. harknessi, A. munda, and A. rhoadsi. These species are not included in the International Union for the Conservation of Nature (IUCN) Red List, except for A. garrisoni which has been categorized as Least Concern. Our results indicated large distribution areas for all species, except for A. garrisoni, (8,038 km² after a refinement analysis looking for suitable habitat). Large distribution can be explained by similar niche properties shared by all study species. This is not the case for A. garrisoni whose situation seems worrying. This species was found in the Mexican state of San Luis Potosi in 1999 and there have been no further observations so it deserves further inspection to see whether populations are at risk. In the meantime, and according to the IUCN criteria, A. garrisoni should be placed under a vulnerable category.

Estimating distribution area in six Argia damselflies (Insecta: Odonata: Coenagrionidae) including A. garrisoni, a threatened species