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Epermenia falciformis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Epermeniidae
Genus:	Epermenia
Species:	E. falciformis
Binomial name
Epermenia falciformis (Haworth, 1828)
Synonyms
Recurvaria falciformis Haworth, 1828 Calotripis falciformis Epermenia illigerella sensu auctt. nec (Hübner )

Epermenia falciformis, also known as the large lance-wing, is a moth of the family Epermeniidae found in Europe. It was first described by Adrian Hardy Haworth in 1828.

Description

The wingspan is 9–11 mm. Forewings pale ochreous ; costa fuscous on anterior half; an indistinct fuscous streak from base of dorsum to beneath 1/3 of costa; a rather dark ochreous-fuscous fascia from middle of costa obliquely inwards, dilated on costa, emitting from dilation a streak to tornus ; an inwardly oblique dark ochreous-fuscous spot on costa before apex ; second discal stigma dark fuscous ; two black dorsal scale-teeth ; dark line of cilia subfalcate at apex. Hindwings dark grey. Larva yellow-green; dorsal line darker head yellowish-brown.

Adults are on wing from June to July and again from August to September in two generations per year.

Ova are laid on angelica (Angelica sylvestris) and ground-elder (Aegopodium podagraria) in June and July, and in the Autumn. Larvae of the first generation feed in May and June in spun leaflets of their host plant, while larvae of the second generation mine a stem immediately below an umbel, causing it to droop and wither. When full grown, larvae leave via a small hole just before the junction above the main stem. Pupation takes place in an open network cocoon amongst detritus on the ground. The threads spun by the larva are covered with minute drops of a sticky secretion.

Distribution

It is found in Austria, Belgium, the Czech Republic, Denmark, France, Fennoscandia, Germany, Great Britain and Ireland, Latvia, the Netherlands and Slovakia.

References

1. "Epermenia (Calotripis) falciformis (Haworth, 1828)". Fauna Europaea. Retrieved 4 October 2020.
2. Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf This article incorporates text from this source, which is in the public domain. Keys and description
3. Kimber, Ian. "Epermenia falciformis (Haworth, 1828)". UKmoths. Retrieved 4 October 2020.
4. ^ Godfray, H C J; Sterling, P H (1996). Epermeniidae. In Moths and Butterflies of Great Britain and Ireland. Volume 3. Colchester: Harley Books. pp. 119–20. ISBN 0-946589-56-9.
5. "Lepidoptera of Belgium". Archived from the original on 2014-04-07. Retrieved 2011-10-24.

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• Epermeniidae
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• Moths described in 1828
• Moths of Europe
• Taxa named by Adrian Hardy Haworth
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