Strautzia longipennis (Wiedemann, 1830)
sunflower maggot fly
on Helianthus
parasite
Up to 20 larvae bore in the pith of the stem; pupation in the soil.
host plants
Asteraceae, monophagous
Helianthus annuus, tuberosus.
phenology
Univoltine; hibernation as puparium.
distribution within Europe
North American species, found in Germany; whether this has resulted in a successful colonisation is not yet clear.
references
Brückner & Korneyev (2010a), Smit (2020a) .