Friday
Jun142013
Hoverfly

A male hoverfly of the Cheilosia albitarsis species group, probably Cheilosia mutabilis (Diptera: Syrphidae). Cheilosia albitarsis or Cheilosia ranunculi (Diptera: Syrphidae). Initially I thought that it might be Cheilosia mutabilis because of the black on the haltere, but Roger Morris pointed out in the comments below that this is not necessarily diagnostic.
Dark or partly dark halteres distinguish C. mutabilis from C. albitarsis and C. ranunculi, the other two members of the group.
Photos taken in Whiteknights Park, Reading, UK, on 2012-05-18.
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Insects

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