Seq # 130030040

Nemophora dumerilella (Duponchel, 1839) Species

Last modified: July 7, 2022, 5:26 p.m.

Before and early 20th century, this species used to be very common around Dinant and Rochefort (NA) but it has not been seen for a very long time although easy to recognize. Rediscovered back in 2022 in NA.


Family: Adelidae > Subfamily: Adelinae > Genus: Nemophora > Species: Nemophora dumerilella
Vernacular names
Goudrode langsprietmot (NL), Goldglanz-Langhornfalter (DE)
First mention in Belgium
Fologne E., Sauveur J., Colbeau J. & Peteau A. 1861. Compte rendu d'une excursion entomologique faite aux environs de Dinant et de Rochefort au mois de juillet 1860. — Annales de la Société entomologique belge 5: 12–32. On page 13. view page




Wingspan 12–13 mm. Male: head black, antenna slightly more than twice the lenght of the forewing. Female: head ferruginous, antenna slightly longer than forewing. Basal half of forewing pale, greenish brassy, just over half of the mid-wing a dark, slightly oblique fascia and beyond this intensively glossy reddish coppery colored.

Museum specimens

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Specimens in nature


Oval case built with soil and small plant particles, about 8 mm long.

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The adults are active during the day and visit flowers.

Flight periods

The adults are on the wing from late June till early August.

Observed on

Host plant (species):
Veronica spicata, Sedum album, Succisa pratensis, Hypericum perforatum and Sedum rupestre

The larva feeds most probably on Sedum album. Also known from egg-laying on Sedum rupestre and on Veronica spicata. Other plants mentioned are Succisa pratensis and Hypericum perforatum.

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Xerotherm slopes on limestone where the foodplant grows.

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