Food Plant: Phragmites australis (Reed)

Mine: Summer

Notes: Forms a large linear shallow blotch in the leaf blade and the larva usually pupates in the leaf (as shown). The puparium is very distinctive - being a metallic black, with an elongated, almost rectangular, posterior section, which has knob-like spiracular processes (as shown). Widespread in the UK and Europe.

Data: 29.ix.2016, Hessle, South-east Yorkshire, VC61

Image:© Barry Warrington