Spiraea, bridewort

Dichotomous table for leafminers

1a blotch, from which an excision is made in which the larva drops to the ground: Incurvaria praelatella

1b mine without an excision => 2

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

2a fleck mine: Coleophora potentillae

2b corridor, blotch, or tentiform mine => 3

3a mine < 1 cm, full depth: : Incurvaria praelatella (young mine)

3b mine larger, upper-surface => 4

4a silvery blotch, eventually a contracted tentifom mine; larva with chitinised head: Phyllonorycter corylifoliella

4b mine greenish, flat; larva a maggot: Agromyza spiraeoidearum

Not included in the key: Coleophora hemerobiella, serratella, spiraeella; Ectoedemia spiraeae; Fenella nigrita; Parornix mixta; Stigmella inopinata.

mod 9.x.2017