Thistle's picture

Shaded Case-bearer (Coleophora potentillae)

Observed: 12th October 2013 By: ThistleThistle’s reputation in InvertebratesThistle’s reputation in InvertebratesThistle’s reputation in InvertebratesThistle’s reputation in Invertebrates
Shaded Case-bearer (Coleophora potentillae)

Multiple small leaf mines on Dog Rose (Rosa canina). Leafminer (Coleophora potentillae) seems to be the most likely candidate ... unless I'm wrong and it's fungal damage.

Species interactions

No interactions present.

Species with which Shaded Case-bearer (Coleophora potentillae) interacts


GrizzledBadger's picture

Possibly the result of

Possibly the result of Slugworm ( larvae of sawfly such as Caliroa cerasi. Some beetle larvae also cause 'windowing' as the effect is known. I don't think it's fungal damage.


RHoman's picture

What about the underside?

If this is a Coleophora species then each of the pale patches should have a small hole where the larva has pushed its front parts in order to mine. The holes should be visible on the underside. If no holes then it is not a Coleophora. (The most likely Col. on rose is Coleophora gryphipennella)

Robert Homan

Martin Harvey's picture


I'd also say that the shapes are too irregular, and too consistently close to the main vein, for this to be Coleophora feeding signs - but I'm not sure what it is!

Entomologist and biological recorder