Baetis alternata

August 1st

Physical characteristics

  • Nymph: from 12 to 18 mm for the body
  • Imago:
    • Body: ♂ 12 to 14 mm, ♀ 16 to 17 mm
    • Cerque S: ♂ 20 to 22 mm, ♀ 16 to 18 mm
    • Ailes: ♂ 12 to 14 mm, ♀ 15 to 17 mm

Baetis alternata is very recognizable with its marks in " legs of oiseau" being reproduced on each ring of its abdomen.

  • Synomyme : Siphlurella linneana

Localization

Baetis alternata is especially present in the center and the south of Europe, particularly in the rivers of head of Bassin pouring.

Blossoming

Of at the beginning of May at the end of June.

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