Elm - Ulmus

Description

Identification of Elm to species level is very difficult and sometimes not possible from photographs.  Any record not confirmed by one of our VC55 County Recorders for flora should be added as Ulmus agg.

Identification difficulty

Aggregate

Recording advice

Identification of Elm to species level is very difficult and sometimes not possible from photographs.  Any record not confirmed by one of our VC55 County Recorders for flora should be added as Ulmus agg.

Habitat

Mainly seen in hedgerows but also in woodland and scrub areas.

When to see it

Most species of Elm flower early (in February and March) before coming into leaf.

Life History

Deciduous.

UK Status

As an aggregate Elm is frequent and widespread in Britain.

VC55 Status

Frequent as an aggregate in Leicestershire and Rutland.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
Elm
Species group:
flowering plant
Kingdom:
Plantae
Order:
Rosales
Family:
Ulmaceae
Records on NatureSpot:
313
First record:
24/08/1996 (Steve Woodward)
Last record:
21/05/2026 (Mabbett, Craig)

Total records by month

% of records within its species group

10km squares with records

The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.

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Latest images

Latest records

Photo of the association

Tinocallis takachihoensis

All adult of the aphid Tinocallis takachihoensis viviparae are winged. These alates are pale yellow-green with a shiny black head and thorax. The pattern of black markings on the wings is diagnostic.

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Coleophora limosipennella

The cased larva of the moth Coleophora limosipennella feeds on Elm. Mines start from the midrib and head outwards along a vein, terminating in a small (c.2-3mm) elongated oval excision.  All frass is expelled from the mine, and can be seen along the midrib underneath.  The cut-out leaf in used to make a larval case in which it overwinters on an elm twig, resuming feeding in late spring.

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Coleophora badiipennella

The cased larva of the moth Coleophora badiipennella feeds on Elm starting with a narrow gallery running from the mid-rib along a side vein.  This ends in a roughly oval/rounded rectangular excision (c.6mm long) out of which it makes its first case. Several small mines are then made in the leaf, each with a small central hole where the case was attached.  The final case is small and often has a serrated dorsal keel.

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Coleophora serratella

The cased larva of the moth Coleophora serratella feeds on Birch and Elm. The first cases are very small and curved; final cases are tubular and usually have a serrated keel.

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Orchestes betuleti

Orchestes betuleti is a very small ( 2.5 mm or less) weevil associated with Elm. It may vary from orange-red to darker red.  The unmarked elytra, head, legs and rostrum are all red.  The larva mines the leaves of Elm, creating a narrow gallery, which widens into a blotch at the leaf-edge. The mines of Orchestes alni on Elm are similar but tend to appear earlier in the year.

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European Elm Flea Weevil

The European Elm Flea Weevil (Orchestes alni) is a very small (2.5 to 3.5mm) weevil. Each red/orange wing case (elytron) usually has two or more dark blotches, which gives this weevil a rather ladybird like appearance. The larva mines Elm, creating a narrow gallery starting from the midrib, widening into a blotch at the leaf-edge. The mines of Orchestes betuleti on Elm are similar but tend to appear later in the year.. 

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Zig-zag Elm Sawfly

The larvae of the Zig-zag Elm Sawfly (Aproceros leucopoda) feed on the leaves of Elm, prodicing characteristic zig-zag cut-out patterns in the leaf.

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Aceria campestricola

Aceria campestricola is a gall mite that causes numerous small pouch galls to form on the upper leaf surfaces of certain species of Elm.

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Physemocecis ulmi

The larvae of the gall midge Physemocecis ulmi produce yellowish, blister-like galls on the leaves of Elm species. The galls contain a white larva.

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Apple Leaf Miner

The larva of the Apple Leaf Miner moth (Lyonetia clerkella) produces a leafmine on a number of species, and ocasionally uses Elm. The mine is long smoothly curved gallery with frass in a central line; older mines look whitish. The larva is long and slender. It has a segmented body and 6 dark feet.

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Bucculatrix albedinella

The larvae of the moth mines the leaves of elm producing a short gallery with linear frass, and one or more short frass-free projections from the mine 

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Stigmella viscerella

The green larva of the moth Stigmella viscerella mines the leaves of Elm (Ulmus). The mine starts as a slender contorted gallery that looks like a tiny blotch, then progresses in a series of very tight 'S' turns.  The fresh frass is reddish in colour.

Photo of the association

Stigmella ulmivora

The larva of the moth Stigmella ulmivora mines the leaves of Elm (Ulmus). It forms a long min e with linear frass in early part of mine. The green larva leaves the mine via an exit hole on the underside of the leaf.

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Stigmella lemniscella

The larva of the moth Stigmella lemniscella mines the leaves of Elm (Ulmus) including Wych Elm (U. glabra). It forms a narrow gallery almost filled with frass, often following the leaf margin. The yellow larva leaves the mine via an exit hole on the upper surface of the leaf.

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Phyllonorycter schreberella

The larva of the moth Phyllonorycter schreberella feeds on Elm (Ulmus) forming a rounded mine. This species rarely uses Wych Elm.

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Phyllonorycter tristrigella

The larvae of the moth Phyllonorycter tristrigella feed on Elm (Ulmus), creating a long, narrow blotch mine on the underside of a leaf between two veins.

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Fenusa pusilla agg.

The species is most likely to be recorded from the leafmine produced by the sawfly larva which is a full depth blotch mine on Elm. The taxonomy of the sawflies feeding on Ulmus is problematic and unresolved at present. Some authors e.g. Lacourt (2020) consider all the Ulmus feeding leafminers belong to one species - Fenusa pusilla. Fenusa ulmi was recorded in Ireland (2004, Knight) as F. pusilla. In Europe there are at most two species on Elm, F. ulmi and F. altenhoferi and we have decided to treat these as F. pusilla agg. until such time as the taxonomy is resolved. 

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European Elm Leafcurl Aphid

Eriosoma ulmi is a greyish waxy aphid that causes a leaf roll gall to form on the leaves of Elm. One half of the Elm leaf blade crinkles and rolls in to form a tubular pouch. The gall is seen more often than the aphid.

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Eriosoma lanuginosum

Eriosoma lanuginosum is an aphid which causes the formation of a leaf gall on Elm which takes the form of a bladder looking like a pale green egg or pear which may be 6 or even 8 cm long and nearly as wide. The gall is more often seen than the adult aphid.

Photo of the association

Fig Gall

The aphid Tetraneura ulmi causes a fig like gall to be formed on certain species of elm. This is a quite large, solitary, upright, pouch like gall on the upper surface of the leaf. The gall is more often seen than the adult aphid.