Eriophorum cotton-grass

Dichotomous table for leafminers

1a larva a maggot; puparium within the mine => 2

1b larva with chitinised head; pupation outside the mine => 3

1c galls, etc => Tables for all parasites per species

2a frass in isolated granules or strings: Cerodontha geniculata

2b frass in one large lump: Cerodontha eriophori

2a mine running down from the leaf tip: Elachista albidella, eleochariella , imatrella, kilmunella, leifi, serricornis

2b mine extending upwards from the leaf base: Monochroa suffusella

mod 9.x.2017