Summary details for Ero tuberculata (De Geer, 1778)

Species Details

Species name
Ero tuberculata (De Geer, 1778)
Synonym
Ero tuberculata (Degeer, 1778)
Taxonomy
Animalia :: Araneae :: Mimetidae

Distribution

The species is widespread but very locally distributed in England south-east of a line from the Severn to the Wash. It is widespread in western and central Europe as far north as Denmark, but has not been recorded from Ireland.

Habitat and ecology

This pirate spider is found mainly on mature heathland on tall heather and gorse. It has also been recorded from younger stages of heathland succession as well as a number of other habitats including fens and buildings. It searches out the webs of other spiders and invades them in order to feed on the rightful occupants. Adults occur in late summer and autumn, but have been recorded until March (Merrett 1990).

Status

A decline of more than 30% is suspected based on a decline in area of occupancy. Population severely fragmented.

Threats

The main threats to this species arise from loss of its heathland strongholds to agriculture, forestry, housing and industrial developments (Merrett 1990).

Management and conservation

Although the species appears to be heavily dependent on mature heather, rotational management is necessary to prevent scrub invasion and to maintain all seral stages of heather. Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).

Stats

First recorded
2023
Last recorded
2025
Total records
10
Total visits
10

Conservation status

Ero tuberculata
SourceReporting categoryDesignationDate designatedComments
A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017)Rare and scarce speciesNationally Scarce. Includes Red Listed taxa01/09/2017
A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017)Red listing based on 2001 IUCN guidelinesLeast concern01/09/2017A mature heathland species that would qualify as VU on the basis of the scale of decline but under-recording of the southern heathlands in recent years is believed to have inflated the rate of decline. Threats: The main threats to this species arise from loss of its heathland strongholds to agriculture, forestry, housing and industrial developments (Merrett 1990).

Spatial distribution - hectad map

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Rejected records are excluded from this map. Unverified records are included.

Temporal distribution - records by year

Records that span more than one year are not included in this chart.

Temporal distribution - records by week