''Callicera rufa'' is a

Palearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ...

hoverfly.

Description

For terms see Morphology of Diptera
External images
A large (Wing length 9·75-11·25 mm.) metallic fly with red fur and long black antennae. Antennae segment 1 at least twice as long as 2 with a short arista (more so in male) which is bulbous at the base, then thread-like. The tergites are shining black, 2 and 3 with dull blackish markings The pubescence of tergites entirely tawny red (tergite 4 is more or less extensively black-haired in some individuals). The legs are yellow-red, the last two tarsal segments darkened. The larva is illustrated in colour by Rotheray.Rotheray G., 1993 ''Colour Guide to Hoverfly Larvae Diptera, Syrphidae in Britain and Europe'' Dipterists Foru
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Distribution

Scotland, Belgium, Netherlands, Germany, Poland, Hungary, Balaearic islands, Pyrenees, Corsica, Italy, Greece, and Romania. Not known from the east Palaearctic.

Habitat

Ancient '' Pinus sylvestris'' forest.

Biology

Arboreal, but females descend to visit stumps of old pine trees in small forest clearings, or to visit rot-holes. Flowers visited include '' Ranunculus repens''. The flight period is mid May to August.

References

{{Taxonbar, from=Q10743857 Palearctic arthropods Callicerini Taxa named by Theodor Emil Schummel