Baetis

This article is about the genus of insects. For the river previously known as "Baetis", see Guadalquivir.

Baetis is a genus of mayflies of the family Baetidae, known as the blue-winged olive to anglers. There are at least 150 described species in Baetis.^[1][2][3][4] They are distributed worldwide, with the most variety in North America and northern Europe.^[5]

Baetis
Baetis intercalaris
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Ephemeroptera
Family:	Baetidae
Subfamily:	Baetinae
Genus:	Baetis Leach, 1815
Diversity
at least 150 species

Nymph

Male imago of Baetis tricaudatus

Baetis sahoensis

Selected species

Main article: List of Baetis species

About 48 species occur in Europe including:^[6]

• Baetis alpinus (Pictet, 1843)
• Baetis atrebatinus Eaton, 1870
• Baetis bicaudatus Dodds, 1923
• Baetis buceratus Eaton, 1870
• Baetis cypronyx Godunko, Soldán & Staniczek, 2017
• Baetis fuscatus (Linnaeus, 1761) - type species (as Ephemera fuscata Linnaeus, 1761)^[7]
• Baetis muticus (Linnaeus, 1758)
• Baetis niger (Linnaeus, 1761)
• Baetis rhodani (Pictet, 1843)
• Baetis scambus Eaton, 1870
• Baetis vernus Curtis, 1834