VI Summary
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1
The larva and pupa of Hydrobaenus (Smittia) ephemerae Kief. has been found in phoretic association with Ephemera danica Muell. near Leeds.
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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.
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3.
There are four larval instars, all much alike. Details of mouth parts, prolegs and chaetotaxy are described (v. fig. 1).
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4.
The pupa is described (fig. 2).
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5.
The male and female adults are described in some details (figs. 2.33).
VII Resume
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1.
On a trouvé, près de Leeds, les larves et les pupes du Hydroaenus (Smittia) Kief en association phorétique avec Éphèmera danica Muell.
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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.
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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).
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4.
Description de la pupe (fig. 2).
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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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DOI: https://doi.org/10.1007/BF00150057