Parc Seymour Woods

Site of Special Scientific Interest · 51.6250, -2.8534

Also within

Gwent County

Geology & landscape

Rock Type: Conglomerate, Sandstone

Description

Description This area of coppiced sessile oak Quercus petraea woodland, overlying Upper Old Red Sandstone and Quartz Conglomerate rocks, is the last major relict of the formerly extensive ancient woodland of Wentwood Forest. Remarks: Part of the site is subject to a Tree Preservation Order. The scheduled ancient monument of Castell-prin Camp is located in this site.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
sessile or durmast oak Quercus petraea LC tree fagaceae

Insects to look out for

These moths, butterflies and beetles are known to feed on plants recorded at this site, and carry a notable UK conservation status — but a host-plant being present doesn't mean the insect has actually been recorded here. Treat this as "worth watching for," not a confirmed sighting.

SpeciesStatusVia host-plant
Oak lutestring
Cymatophorina diluta
Endangered Quercus petraea
Scarce vapourer
Orgyia recens
Endangered Quercus spp.
The sprawler
Asteroscopus sphinx
Vulnerable Quercus spp.
Mottled umber
Erannis defoliaria
Vulnerable Quercus spp.
The lackey
Malacosoma neustria
Vulnerable Quercus spp.
Pale brindled
Phigalia pilosaria
Vulnerable Quercus spp.
Early moth
Theria primaria
Vulnerable Quercus spp.
Pale eggar
Trichiura crataegi
Vulnerable Quercus spp.
Oak hook-tip
Watsonalla binaria
Vulnerable Quercus petraea
Flounced chestnut
Agrochola helvola
Near Threatened Quercus spp.
Large thorn
Ennomos autumnaria
Near Threatened Quercus spp.
September thorn
Ennomos erosaria
Near Threatened Quercus spp.
Double dart
Graphiphora augur
Near Threatened Quercus spp.
Clay fan-foot
Paracolax tristalis
Near Threatened Quercus spp.
Frosted green
Polyploca ridens
Near Threatened Quercus petraea

Host-plant data: Cook et al. (2025), Traits data for the butterflies and macro-moths of Great Britain and Ireland, 2024, UK Centre for Ecology & Hydrology / Butterfly Conservation; and Padovani et al. (2020), Database of Insects and their Food Plants (DBIF), UK Centre for Ecology & Hydrology (both Open Government Licence). Contains data supplied by UK Centre for Ecology & Hydrology.