Pempeliella ornatella is a moth of the family Pyralidae described by Michael Denis and Ignaz Schiffermüller in 1775. It is found in most of Europe, east to the Ural, Siberia, central Yakutia and Kyrgyzstan.
The wingspan is .The forewings are brownish ochreous; veins and costa suffusedly fuscous, somewhat mixed with white; lines whitish, first interrupted, edged posteriorly with dark spots on veins, second almost straight; two dark fuscous suffusedly whitish-edged transversely placed discal dots. Hindwings fuscous or light fuscous.Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf Keys and description lepiforum.de includes imagesParsons, M. Clancey, C. 2023 A Guide to the Pyralid and Crambid Moths of Britain and Ireland Atropos Publishing Goater, B., Dyke . G. and Tweedie, R. 1986 British Pyralid Moths: A Guide to Their Identification
Adults are on wing from mid-June to August in one generation.
The larvae live in a web near the roots of Thymus species.
Subspecies Pempeliella ornatella ornatella Pempeliella ornatella gigantella
References
Pempeliella ornatella ([Denis & Schiffermüller], 1775) at Catalogue of the Lepidoptera of Belgium Pempeliella ornatella (Denis & Schiffermüller, 1775) at Fauna Europaea Pyraliodea collection of Siberian Zoological Museum as Pempelliella ornatella