Symydobius

Mordvilko, 1894

Species Guides

1

Symydobius is a of aphids (Hemiptera: Aphididae) in the tribe Calaphidini. occur in Europe and North America, with at least two described species: S. alniarius and S. americanus. The genus is associated with birch (Betula) . Symydobius oblongus exhibits behavioral coordination with attending ants, specifically Formica lugubris.

Symydobius intermedius by the Smithsonian. Used under a CC0 license.Symydobius intermedius by the Smithsonian. Used under a CC0 license.Symydobius intermedius by the Smithsonian. Used under a CC0 license.

Pronunciation

How to pronounce Symydobius: //sɪˈmɪd.oʊ.bi.əs//

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Habitat

Associated with birch trees (Betula ), including paper birch (Betula papyrifera).

Distribution

Europe (Denmark, Norway, Sweden) and North America.

Diet

Phloem-feeding on birch (Betula); specific dietary details otherwise unknown.

Host Associations

  • Betula - plant-level association; S. americanus specifically documented on Betula papyrifera
  • Betula papyrifera - plantDocumented for S. americanus
  • Formica lugubris - mutualistAttending for S. oblongus; exhibits behavioral coordination with this

Behavior

S. oblongus has been observed to exhibit behavioral coordination with its attending Formica lugubris.

More Details

Taxonomic Note

Symydobius oblongus was classified under Callaphidae in older literature, but this is now treated as a synonym of Aphididae.

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Sources and further reading