Chamerion *, rosebay willow-herb

Dichotomous table for leafminers

1a corridor, may be followed by a blotch; corridor begins at an iridescent egg shell => 2

1b blotch, without initial corridor; mine begins at a small opening => 3

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

2a corridor narrow, almost completely filled withh frass, not very contorted, often running along the midrib (common species): Mompha raschkiella, initial corridor

2b corridor irregular in width, contorted, frass line narrower (rare species): Mompha langiella, initial corridor

3a larvae in end May-end July or end August-September (common species): Mompha raschkiella, later mine

3b larvae in June-July (rare species): Mompha langiella, later mine

* The genus Chamerion (= Chamaenerion) is alternatively split off from, and merged with Epilobium in the botanical literature. Although presently it is included in Epilobbium by the Euro+Med PlantBase, for practical reasons Chamerion is upheld here.

Not included in the key: Cnephasia stephensiana; Mompha epilobiella, Mompha ochraceella, Mompha sexstrigella.

Tables for all parasites per species

mod 9.x.2017