Dichrorampha sequana (Hübner, 1799)
square-spot drill
on Achillea, Tanacetum
parasite
The larvae bore in the roots.
host plants
Asteraceae, oligophagous
Achillea millefolium; Tanacetum vulgare.
Records from Leucanthemum vulgare are less likely.
phenology
Univoltine; hibernation as larva.
distribution within Europe
larva
Body whitish; head light brown, laterally darkekened; prothoracic plate light brown (Swatschek).
references
Bradley, Tremewan & Smith (1979a), Disqué (1905a), Hancock & Bland (2015b), Lepiforum (2019), Schütze (1931a), Swatschek (1958a), Wegner (2015a).