Eristalis tenax (Drone Fly) is a species of flies in the family flower flies. They visit flowers of Senecio erucifolius, rowan, moutain ash, pygmy linanthus, and butterfly-bush. They are diurnal. Individuals can grow to 14 mm.

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EOL has data for 15 attributes, including:

Known occurrences, collected specimens and observations of drone fly. View this species on GBIF