Food Plant: Achillea millefolium (Yarrow)

Egg: Upper side of leaf

Mine: April - May; July

Notes: Initially mines the leaf then feeds externally on the upper surface of the leaf (as shown). The leaves then whiten and shrivel, which can be taken as indictors of the presence of the larvae.

Data: 17.iv.2005, Thetford, Suffolk, VC26

Image:© Tony Prichard