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Scientific name
Arge expansa (Klug, 1834)
Group of organisms
Hymenoptera: Symphyta
Red List Category
Not Threatened
Responsibility of Germany
General responsibility
Current population status
very rare
Long-term population trend
unknown
Short-term population trend
clear increase
Previous Red List Category
No evidence, not listed without intentionally excluding the taxa or no confirmed established occurrence (neither under the same nor a different name).
Change of category compared to previous Red List
The change of category is not assessable, for example because the previous Red List does not list the taxon or the taxon has not been assessed in the previous Red List.
Further comments
Funde aus Deutschland von E. Jansen (unveröff.).
Source

Liston, A.D.; Jansen, E.; Blank, S.M.; Kraus, M. & Taeger, A. (2011): Rote Liste und Gesamtartenliste der Pflanzenwespen (Hymenoptera: Symphyta) Deutschlands. – In: Binot-Hafke, M.; Balzer, S.; Becker, N.; Gruttke, H.; Haupt, H.; Hofbauer, N.; Ludwig, G.; Matzke-Hajek, G. & Strauch, M. (Red.): Rote Liste gefährdeter Tiere, Pflanzen und Pilze Deutschlands, Band 3: Wirbellose Tiere (Teil 1). – Münster (Landwirtschaftsverlag). – Naturschutz und Biologische Vielfalt 70 (3): 491-556.