Dyseriocrania subpurpurella  Dyseriocrania subpurpurella is a diurnal moth from the family Eriocraniidae. It is found in Europe. The wingspan of the moth ranges from 9–14 mm. The wings are metallic gold with sapphire-blue and ruby-red dots (strigulae) and an indistinct obscurely paler dorsal spot before tornus. The hindwings are brassy-grey, posteriorly purplish-tinged and like the forewings have grey cilia. The head is ochreous-grey-whitish mixed with dark fuscous. The flight time ranges from April to May. The caterpillar mines the leaves of "Quercus" (oak) species.