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Revista del Museo Argentino de Ciencias Naturales
On-line version ISSN 1853-0400
Abstract
LARREA, Dario D. and DUFEK, Matías I.. Formicidae (Hymenoptera) from the Humid Chaco ecoregion: inventory of species, new records, and pictorial keys for subfamilies and genera identification. Rev. Mus. Argent. Cienc. Nat. [online]. 2023, vol.25, n.2, pp.177-198. ISSN 1853-0400. http://dx.doi.org/10.22179/revmacn.25.792.
This is the first study that analyzes the ant fauna of the Humid Chaco ecoregion. We produced an inventory based on a) sampling at different locations in the provinces of Chaco and Corrientes, Argentina, and b) bibliographic records. This inventory comprises 10 subfamilies, 77 genera, and 462 species. Eight of these species are new records for the Humid Chaco ecoregion, and six species are registered for the first time in Argentina. Acanthostichus longinodis, Camponotus fiebrigi, Crematogaster thalia, Eciton mexicanum argenti num, Mycetomoellerius fiebrigi, Strumigenys insolita and Strumigenys siagodens are registered as endemic spe cies of the Humid Chaco ecoregion. Pictorial keys are provided for the 10 subfamilies and 77 genera that inhabit this ecoregion.
Keywords : Ants; Check list; Neotropical region; New records.