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Scientific name
Chrysotoxum octomaculatum Curtis, 1837
Group of organisms
Diptera: Syrphidae
Red List Category
Critically endangered
Responsibility of Germany
General responsibility
Current population status
extremely rare
Long-term population trend
very strong decline
Short-term population trend
strong decrease
Special cases
Negative risk factor(s) is/are known
Risk factors
Increasing indirect impacts, e. g. deterioration of habitat quality
Previous Red List Category
Critically endangered
Change of category compared to previous Red List
Red List Category unchanged
Status
Indigenes or Archaeobiota
Source

Ssymank, A.; Doczkal, D.; Rennwald, K. & Dziock, F. (2011): Rote Liste und Gesamtartenliste der Schwebfliegen (Diptera: Syrphidae) 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): 13-83.