Acanthagrion taxaense Santos, 1965

Rio de Janerio acanthagrion (proposed)



Taxonomy & Nomenclature

Synonym/s: Acanthagrion taxaensis Santos, 1965 (emandation)


Conservation Status


Last record: 1965

IUCN status: Critically Endangered


Acanthagrion taxaense has not been found since the last of the type series was collected in 1965 (von Ellenrieder, 2009). This species probably does not belong in Acanthagrion (Leonard, 1977:148). This species seems to have been declared officially extinct by the Brazilian government in the early 2000's (Fundação Biodiversitas, 2003).



Rio de Janerio, Brazil


Biology & Ecology




55 specimens have been preserved as part of the type series (40 males, 15 females) (Santos, 1965; von Ellenrieder, 2009).






Original scientific description:

Santos, N. D. (1965). Contribuição ao conhecimento da fauna do estado da Guanabara. LIV--Acanthagrion taxaensis sp. nov. (Odonata: Coenagrionidae). Atas da Sociedade de Biologia do Rio de Janeiro 9(4): 60-63.


Other references:

von Ellenrieder, N. (2009). Acanthagrion taxaense. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. ( Downloaded on 06 February 2013.

Fundação Biodiversitas. (2003). Lista das Espécies Ameaçadas da Fauna Brasileira - Maio de 2003. Available at: [Accessed 6/2/2013]

Leonard, Justin W. (1977). A Revisionary Study of the Genus Acanthagrion (Odonata: Zygoptera). Miscellaneous Publications, Museum of Zoology, Univerity of Michigan, No. 153.


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