Early stages: Coleophora paripennella

It is that time of year again when it is worth keeping a close eye out for the feeding signs of various larvae, including the case bearing Coleophorids, many of which make very obvious feeding signs that betray their presence. I came across several cases of Coleophora paripennella yesterday on the basal rosette of leaves of Centaurea.

 
This last one is just to give an idea of scale...