A rather uncommon species in Belgium.
larva makes a leafmine usually on Rubus but also on Agrimonia, Fragaria and Geum.
Usually a long sinuous gallery with frass at first broken
linear, then dispersed about two third of mine width. Brown cocoon.
adults fly in two generations a year: late April-May and
mine: there is a great overlap with mines between this species and Stigmella splendidissimella,
especially on Rubus
and it's not easy to separate them. However there is a
diagnose to give maximum chance for correct determination. In step-down
order for S. aurella;
frass in second part of gallery minimal half of width, frass in first
cm of gallery minimal half of width, mine is straight in first cm,
mine crosses rarely itself and mine cross regularly the midrib.
Liège, Aywaille, 11 November 2006.
mine on Rubus
(Photo © Chris Steeman)