4f4c4942-4343-5764-6473-313138333432 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2025-12-24T09:23:55.846Z NRW 1.0 wel British National Grid (EPSG::27700) The Status of the Caddis Adicella filicornis in Wales (2016) The Status of the Caddis Adicella filicornis in Wales (2016) Cyflwr Pryf Gwellt Adicella filicornis yng Nghymru (2016) 2017-03-31 NRW_DS118342 A survey for the Endangered caddis Adicella filicornis (Trichoptera) in 2016 found pupal cases at all four Welsh sites with modern records, and a single adult. Populations at Coed Dol-goch, Halton Wood, Prisk Wood and Wilderness Wood appear to be small and the habitat used by the caddis - very small permanent streams on quite steep slopes close to their origin from groundwater springs - is also highly localised and very fragile. Only Coed Dol-goch supports a reasonable area of habitat with several stations being occupied. None of the sites has any statutory protection, although Prisk Wood is owned by the Gwent Wildlife Trust and Coed Dol-goch is a community woodland. Consideration should be given to notifying one, if not all, sites as Site of Special Scientific Interest (SSSI) for Adicella filicornis. Prisk Wood and Wilderness Wood also support the only Welsh populations of the rare cranefly Ellipteroides alboscutellatus, a species associated with tufa-depositing seepages. Further surveys for Adicella filicornis at all four occupied sites are required to determine its status and distribution and to identify threats to its habitat. A survey for the Endangered caddis Adicella filicornis (Trichoptera) in 2016 found pupal cases at all four Welsh sites with modern records, and a single adult. Populations at Coed Dol-goch, Halton Wood, Prisk Wood and Wilderness Wood appear to be small and the habitat used by the caddis - very small permanent streams on quite steep slopes close to their origin from groundwater springs - is also highly localised and very fragile. Only Coed Dol-goch supports a reasonable area of habitat with several stations being occupied. None of the sites has any statutory protection, although Prisk Wood is owned by the Gwent Wildlife Trust and Coed Dol-goch is a community woodland. Consideration should be given to notifying one, if not all, sites as Site of Special Scientific Interest (SSSI) for Adicella filicornis. Prisk Wood and Wilderness Wood also support the only Welsh populations of the rare cranefly Ellipteroides alboscutellatus, a species associated with tufa-depositing seepages. Further surveys for Adicella filicornis at all four occupied sites are required to determine its status and distribution and to identify threats to its habitat. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Wallace Liverpool Museum, William Brown Street, Liverpool, L3 8EN ian.wallace@liverpoolmuseums.org.uk <!__ Nowebsite __!> Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Species distribution Habitats and biotopes Protected sites GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme trichoptera caddis flies caddis Adicella filicornis NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords There are no access restrictions to this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Open Government Licence English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 Wales (WLS) -5.777741 -2.608865 51.240829 53.513067 2016-05-01 2017-03-17 Wallace, ID & Wallace, B., (2017), The status of the caddis Adicella filicornis in Wales in 2016, NRW Evidence Report No: 200, 28pp., Natural Resources Wales, Bangor. The status of the caddis Adicella filicornis in Wales in 2016 Database [A] The final report in Microsoft Word and Adobe PDF formats. [B] Species records, which are held on the NRW Recorder 6 database. https://registry.nbnatlas.org/public/show/dr1212 WWW:LINK-1.0-http--link Data Download Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false Surveys were by visual searches for adults, larvae and pupae Surveys were by visual searches for adults, larvae and pupae