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Leaf-miner: The mine is oval, sometimes crossing veins. The lower epidermis with several strong creases (British leafminers).

Along with P. tristrigella, this species feeds on elm, although not usually on wych elm like that species. However the two mines are quite different - schreberella forming a rounded mine and tristrigella a longer, narrower tube-like mine (UKMoths).

Short, roundish to oval, somewhat inflated, lower surface tentiform mine, often crossing a lateral vein. Epidermis with several length folds. Bladmineerders van Europa.

Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).

The larva is illustrated in Bladmineerders van Europa.

Pupa: The pupae of moths have visible head appendages, wings and legs which lie in sheaths (see examples).

Dark brown pupa in a tough, greenish cocoon; the cocoon lies free in the mine, and its wall is not encrusted with frass (Bladmineerders van Europa). The cremaster is illustrated in British leafminers and Bladmineerders van Europa.

Adult: The adult is illustrated in UKMoths. The species is included in mothdissection.co.uk.

Hosts in Great Britain and Ireland:

Ulmaceae
Ulmus				British leafminers
Ulmus				UKMoths
Ulmus	glabra	Wych Elm		Pitkin & Plant
Ulmus	procera	English Elm		Pitkin & Plant

Hosts elsewhere:

Betulaceae
? Carpinus	betulus	Hornbeam		Bladmineerders van Europa
Ulmaceae
Ulmus				Belgian Lepidoptera
Ulmus	glabra	Wych Elm		Belgian Lepidoptera
Ulmus	glabra	Wych Elm		Bladmineerders van Europa
Ulmus	laevis	European White-elm		Belgian Lepidoptera
Ulmus	laevis	European White-elm		Bladmineerders van Europa
Ulmus	minor	Small Leaved Elm		Belgian Lepidoptera
Ulmus	minor	Small Leaved Elm		Bladmineerders van Europa
Ulmus	pumila			Bladmineerders van Europa

Time of year - larvae: July, September - October (British leafminers).

Time of year - adults: The adults fly in two generations during May and August (UKMoths).

Distribution in Great Britain and Ireland: Mainly in the southern half of England and Wales (UKMoths) including Bedfordshire, Buckinghamshire, Cambridgeshire, Derbyshire, Dorset, East Cornwall, East Gloucestershire, East Kent, East Norfolk, East Suffolk,Flintshire, Glamorgan, Herefordshire, Huntingdonshire, Isle of Wight, Leicestershire, Middlesex, Montgomeryshire, North Essex, North Hampshire, North Somerset, Northampton, Pembrokeshire, Shropshire, South Somerset, Stafford, West COrnwall, West Gloucestershire, West Kent, West Norfolk, West Suffolk and Worcestershire (NBN Atlas).

See also British leafminers distribution map.

Distribution elsewhere: Widespread in continental Europe including Austria, Belgium, Bulgaria, Czech Republic, French mainland, Hungary, Italian mainland, Latvia, Lithuania, Poland, Portuguese mainland, Romania, Russia - Central, Northwest and South, Sardinia, Slovakia, Spanish mainland, Sweden, Switzerland, The Netherlands and Ukraine. Also recorded in Near East (Fauna Europaea).

NBN Atlas links to known host species:

British and Irish Parasitoids in Britain and elsewhere: