Adela croesella is a moth of the family Adelidae. It is found in most of Europe.
The wingspan is 11–14 mm. The head is ferruginous mixed with black. The antennae in male 2.5 [the length of the forewing], black, the tip white; in female hardly 1.5, thickened with violet-black scales to above middle, remainder white. The forewings are shining dark violet fuscous, more or less streaked suffusely between veins with golden-ochreous with a straight deep yellow fascia close beyond middle, narrower costally, edged first with dark fuscous and then with narrow violet fasciae. The hindwings are dark purplish fuscous.Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, LondonLangmaid, J. R., Palmer, S. M. & Young, M. R. [eds]. 2018 A Field Guide to the Smaller Moths of Great Britain and Ireland [3rd ed.]Reading, Berkshire. British Entomological and Natural History SocietyZagulajev, A.K., 1987 Adelidae; in G.S. Medvedev (ed.): Keys to the insects of the europaean part of the USSR, Vol.IV: Lepidoptera, part 1 (english translation), Oxonian Press Pvt.Ltd., New Dehli, 1987lepiforum.de includes images Sterling, P. and Parsons, M. 2012 Field Guide to the Micro Moths of Great Britain and Ireland Dorset British Wildlife Publishing, 2012 - 2nd edition (Bloomsbury Wildlife Guides)
Adults are on wing from late May to June. They are on wing during the day in sunshine and visit flowers. [14.7 x 21.2 cm] At first, the larvae probably feed on flowers of Hippophae rhamnoides or Ligustrum vulgare. Older larvae built a portable case from leaf fragments and particles of soil and feed on fallen leaves.
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Bestimmungshilfe für die in Europa nachgewiesenen Schmetterlingsarten UKmoths Fauna Europaea