The leaf and stem mines of British flies and other insects

(Coleoptera, Diptera, Hymenoptera and Lepidoptera)

by Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds


Yponomeuta sedella Treitschke, 1832
[Lepidoptera: Yponomeutidae]

Yponomeuta sedella Treitschke, 1832


Leaf-miner/Leaf-spinner: Numerous, short, narrow galleries, mainly in the basal half of the leaf. Frass in a central interrupted line. The older larvae live free under a communal web (Bladmineerders van Europa).

The larvae initially mine the leaves, making narrow galleries and then feed gregariously in a slight web (British leafminers).

Larva: The larva is illustrated in Bladmineerders van Europa and British leafminers.

Pupa: See Patočka (1997a), Patočka & Turčáni (2005a) (Bladmineerders van Europa).

Adult: The adult is illustrated in UKMoths. The species is included in

Hosts in Great Britain and Ireland:

Sedum telephium Orpine British Wild Flowers by John Somerville et al. British leafminers

Hosts elsewhere:

Rhodiola rosea     Bladmineerders van Europa
Sedum telephium Orpine British Wild Flowers by John Somerville et al. Belgian Lepidoptera
Sedum telephium Orpine British Wild Flowers by John Somerville et al. Bladmineerders van Europa

Time of year - larvae: June-July; September-October (British leafminers). Larvae in June-July and September - October (Agassiz, 1996a), but only the young larvae of the first generation do mine (Hering, 1957a) (Bladmineerders van Europa).

Time of year - adults:There are two generations, adult moths being on the wing in April and May, and again in August. The moth can be taken at light (UKMoths).

Distribution in Great Britain and Ireland: Widespread in England and Wales including Cambridgeshire, Dorset, East Cornwall, East Kent, East Norfolk, East Suffolk, East Sussex, Glamorgan, Hertforshire, Huntingdonshire, Isle of Wight, Merionethshire, Middlesex, Monmouthshire, North Northumberland, North Somerset, South Hampshire, South Northumberland, South Wiltshire, Surrey, West Cornwall, West Kent, West Norfolk, West Sussex and Westmorland (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Austria, Belgium, Bulgaria, Czech Republic, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Lithuania, Luxembourg, Macedonia, Norwegian mainland, Poland, Romania, Sicily, Slovakia, Spanish mainland, Sweden, Switzerland, The Netherlands, Ukraine and Yugoslavia (Fauna Europaea).

NBN Atlas links to known host species:

Sedum telephium

British and Irish Parasitoids in Britain and elsewhere: Currently unknown.

External links: Search the internet:
Belgian Lepidoptera
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
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Last updated 09-Jun-2019  Brian Pitkin Top of page