New records, extended and updated geographic distribution of the South American native antlion Dimares elegans (Perty, 1833) (Neuroptera, Myrmeleontidae)

An extensive review of primary and secondary occurrence data, including several new records, of the South American native antlion Dimares elegans (Perty) revealed that this species is endemic to regions of stressful water regime (Caatinga, Cerrado, Chaco and temperate fields) and adjacent areas in Amazon rainforest, Atlantic forest and Pampas. Its known distribution is from Santarem, Para state, northern Brazil to Rio Negro, Chimpay, northwestern Argentina. The known distribution of the species in Brazil has been extended, registering several areas above the Sao Francisco River (former possible northeastern limit). New limits further east were established from new primary records. For the first time the species is registered from the Brazillian states of Maranhao, Piaui, Rio Grande do Norte, Paraiba, Bahia, Goiais, Tocantins, Minas Gerais, Mato Grosso do Sul, Sao Paulo and Parana, Brazil. Historical data of occurrence in Goias (Cerrado) have been geopolitically rectified (Tocantins) and, present occurrence in Goias is reported by primary data in two new localities. Antlions are mostly xerofilous species, however with recent data this species might present much wider distribution than restricted to seasonally dry forests.

Automated summary

An extensive review of occurrence data has revealed that the South American native antlion Dimares elegans is endemic to specific regions of South America. Its distribution range has been expanded, with new records indicating a wider range than previously thought.