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Northeastern Hammertail
Efferia aestuans
Erax aestuans is a species of insect in the family Asilidae, the robber flies. It is native to eastern North America, where it ranges from Ontario and New Hampshire south into Florida and New Mexico. It was originally described as Asilus aestuans in Carl Linnaeus' 1763 work Centuria Insectorum.
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Every page naming Efferia aestuans in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 61607.