page_title: Eristalinus aeneus
section_title: Biology
hierarchical_section_title: Eristalinus aeneus / Biology
caption_attribution_description: English: Abicada Farm, Abicada, Algarve, Portugal. October 2016
context_page_description: Eristalinus aeneus is a species of hoverfly.
context_section_description: The habitat for this species is freshwater: coastal lagoons, ponds, slow-moving rivers, streams and irrigation ditches. The species is anthropophilic in southern Europe; towards the northern edge of its range there it is confined to coastal sites.
  The species flies very fast and low over ground vegetation, and feeds on yellow composites and white umbellifers: Aster, Berteroa incana, Cistus, Origanum, Salix repens, Taraxacum.
  The flight period is  April to October. Overwinters as an adult.
  In the north the larvae of E. aeneus occur in freshwater seepages and brackish rock pools on the sea coast, but elsewhere they occur in a variety of freshwater habitats, including in association with animal dung and in sewage farms.
caption: Disused water trough habitat in Portugal
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