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Platycheirus ramsarensis Goeldlin de Tiefenau, Maibach & Speight, 1990

Identification

Identification difficulty = 3. microscope_icon camera_icon_cross according to Ball & Morris, 20241

Synonymy

One of the species split from Platycheirus clypeatus by Speight & Goeldlin (1990)2 and Goeldlin et al. (1990)3.

Biology

Larva unknown. It has been found in oligotrophic, wet situations beside moorland streams and lakes, usually where there are small flushes with abundant Carex or Juncus. sedges Carex sp. or rushes Juncus sp. Adults fly low down amongst stands of vegetation and will visit flowers such as Marsh Marigolds Caltha palustris.

Flight period

The following plots show the number of unique records per week that were not reported to be of eggs, larvae or pupae. phenology

Distribution

This is a widely distributed upland species which occurs in acid situations such as boggy stream valleys. The majority of records are from Scotland, the Pennines and Wales, with a scatter from south-western England. dotmap

Trends

The following plots show the Frescalo TFactor vs year and a map of the rescaled frequency (all records) for the species. For an explanation see here. trend

  1. Ball, S., & Morris, R. (2024). Hoverflies of Britain and Ireland. WILDGuides (3rd ed.). Oxford: Princeton University Press. ↩

  2. Speight, M., & Goeldlin de Tiefanau, P. (1990). Keys to distinguish Platycheirus angustipes, P. europaeus, P. occultus and P. ramsarensis (Dipt., Syrphidae) from other clypeatus group species known in Europe. Dipterists Digest (first series), 5, 5–18. ↩

  3. Goeldlin de Tiefanau, ., Maibach, A., & Speight, M. (1990). Sur quelques espèces de Platycheirus (Diptera, Syrphidae) nouvelles ou méconnues. Dipterists Digest (first series), 5, 19–43. ↩