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Ilkka Kaita-aho   cc-publicdomain

Trachusa byssina is a species of Hymenoptera in the family Megachilidae. They visit flowers of Esparcet, Common Bird's-foot-trefoil, bird vetch, and tuberous pea.

EOL has data for 8 attributes, including:

Known occurrences, collected specimens and observations of Trachusa byssina (Panzer 1798). View this species on GBIF