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iNat·969349GenusInsecta31 field observations
  1. Animals
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  3. ›Hexapods
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  5. ›Winged and Once-winged Insects
  6. ›Ants, Bees, Wasps, and Sawflies
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  10. ›Selandriinae
  11. ›Dulophanini
Birka
Plate 1 of 2. (c) Alexander Boldyrev, some rights reserved (CC BY-NC), uploaded by Alexander Boldyrev · via iNaturalist

Birka

Birka (Birca in medieval sources), on the island of Björkö (lit. "Birch Island") in present-day Sweden, was an important Viking Age trading center which handled goods from Scandinavia as well as many parts of Continental Europe and the Orient. Björkö is located in Lake Mälaren, 30 kilometers west of contemporary Stockholm, in the municipality of Ekerö.

Birka was founded around AD 750 and it flourished for more than 200 years. It was abandoned c. AD 975, around the same time Sigtuna was founded as a Christian town some 35 km to the northeast. It has been estimated that the population in Viking Age Birka was between 500 and 1000 people.

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2 branches of this genus, most-observed first

Forget-me-not Sawfly

speciesBirka cinereipes

Birka annulitarsis

speciesBirka annulitarsis

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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Every page naming Birka in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 969349.