Abstract
The male of Dubiaranea difficilis (Mello-Leitão 1944) is described and illustrated for the first time. New geographic records of this species are provided, and its potential distribution is modeled using MAXENT. The actual and potential distribution of Dubiaranea difficilis proved to be much larger than the hitherto known records. This species inhabits at least in three ecoregional sectors in Argentina (northwestern area, central Sierras, and the Pampas), and is also likely that inhabits in Brazil and Bolivia. Possible causes of its wide and environmentally heterogeneous distribution are discussed.References
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