Food Plant: Acer pseudoplatanus (Sycamore), A. campestre (Field Maple)

Egg: laid at the tip of a leaf

Mine: August - September

Notes: A large blotch mine is formed from the tip of a leaf. The pupa is formed in a disc. The species has a long feeding period, more than two months (similar to Heterarthrus nemoratus). Completed mines may be found at the end of July in lower regions of Austria. The larva dorsally has a dark head and pigmentation on the prothorax. Ventrally it has the typical prothoracic 'collar' and spots on the meso- and metathorax. The legs are ringed. The anal ring has fine denticulations (as shown).

Data: 06.ix.2006, Fleet, Hants,VC12 ex mine 01.ix.2006, Etzen, Austria, Ewald Altenhofer

Image:© Rob Edmunds