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Dasysyrphus albostriatus (Fallén, 1817)

Identification

Identification difficulty = 2. eyeball_icon camera_filled_icon according to Ball & Morris, 20241

Synonymy

Syrphus albostriatus Fallén in Coe(1953)2.

Biology

The larva is aphidophagous and arboreal, occurring on both conifers and broadleaved trees. They feed nocturnally, resting near the aphid colony by day on twigs and branches, where they are superbly camouflaged by their dark colours and body projections. Adults are usually found near trees in situations such as woodland rides and edges, hedgerows and gardens where they can be found visiting flowers, such as white umbels and yellow composites, or settled on sun-lit vegetation.

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

Extremely widely distributed, mainly occurring in wooded districts. In more northerly areas it is clearly more abundant in lowland and coastal environments. Records extend north as far as Sutherland. 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. Coe, R. (1953). Diptera: Syrphidae. Handbooks for the Identification of British Insects, 10(1), 1–98. ↩