Cauchas rufimitrella is a diurnal lepidoptera

Lepidoptera

Lepidoptera is a large order of insects that includes moths and butterflies . It is one of the most widespread and widely recognizable insect orders in the world, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...

n from the family Adelidae

Adelidae

| name = Fairy longhorn moths| image=Unidentified animal 007 .jpg| image_width = 240px| image_caption= Adult of an unidentified fairy longhorn mothfrom Chemnitz | regnum = Animalia| phylum = Arthropoda...

, the fairy long horn moths. The wingspan of the moth ranges from 10 to 12 millimeters. The wings are metallic red-purple. This is a common moth in the Netherlands. Caterpillars live on the seeds of Cardamine pratensis

Cardamine pratensis

Cardamine pratensis , is a flowering plant in the family Brassicaceae, native throughout most of Europe and Western Asia.-Description:...

and then they pupate over the winter. Flight time is May to June.