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Dasysyrphus hilaris (Zetterstedt, 1843)

Identification

Identification difficulty = 5. microscope_icon camera_icon_cross according to Ball & Morris, 20241

Synonymy

The taxonomic status of this species has yet to be completely resolved. The male genitalia appear to be distinct from either D. venustus or D. friuliensis, and its specific status may therefore be justified (Entwistle, 19952; Stubbs, 19963).

Biology

Very little is known about this species' biology. The larva can be expected to be aphidophagous, in common with others in the genus, and it seems likely that conifer plantations are favoured.

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

There is a scatter of records in northern Scotland, an aggregation in Yorkshire/Lancashire and a scatter of records from Hampshire and adjacent counties. The distribution of records is odd and may reflect recorder effort or diligence rather than a distinct clumping of populations. dotmap

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

  2. Entwistle, P. (1995). Hoverflies north of Inverness. Hoverfly Newsletter, 20, 2–5. ↩

  3. Stubbs, A. (1996). British Hoverflies. Second (revised and enlarged) supplement. Reading: BENHS. ↩