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The larva, pupa, and imago of Hydrobaenus ephemerae Kief (Chironomidae, Diptera)

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VI Summary

  1. 1

    The larva and pupa of Hydrobaenus (Smittia) ephemerae Kief. has been found in phoretic association with Ephemera danica Muell. near Leeds.

  2. 2.

    The imago has been bred out and two distinct periods of emergence noted — late May to mid June and late July to late August.

  3. 3.

    There are four larval instars, all much alike. Details of mouth parts, prolegs and chaetotaxy are described (v. fig. 1).

  4. 4.

    The pupa is described (fig. 2).

  5. 5.

    The male and female adults are described in some details (figs. 2.33).

VII Resume

  1. 1.

    On a trouvé, près de Leeds, les larves et les pupes du Hydroaenus (Smittia) Kief en association phorétique avec Éphèmera danica Muell.

  2. 2.

    L'imago a éte élevée, et deux périodes distinctes d'emérgence ont été observées: fin Mai jusqu'a mi-Juin, et fin Juillet jusqu'a la fin d'Août.

  3. 3.

    Il existe quatre stades larvaires, qui se ressemblent plus ou moins. Description de l'appareil buccal, les fausses-pattes, et la chaetotaxie (fig. 1).

  4. 4.

    Description de la pupe (fig. 2).

  5. 5.

    Le détail des adultes mâles et femelles est fourni (fig. 2, 3).

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References

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Henson, H. The larva, pupa, and imago of Hydrobaenus ephemerae Kief (Chironomidae, Diptera). Hydrobiologia 9, 25–37 (1957). https://doi.org/10.1007/BF00150057

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