The National Red List Project

UKJNCC - Tomissa2023 | Tenthredo omissa

Assessment ID
Tomissa2023
Taxon name
Tenthredo omissa
Forster, 1844
Uploaded by
JNCC
Taxonomic information
Scientific name
Tenthredo omissa
Forster, 1844
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Tenthredo
Species
omissa
Species authority
Forster, 1844
National taxonomy system
UKSI
Unique national taxonomic ID
NBNSYS0000013484
Location and scope
Specific locality or subnational name or regional name
Great Britain
Scope (of the Assessment)
National
Countries included within the scope of the assessment
United Kingdom of Great Britain and Northern Ireland (the)
Country ISO code(s)
GB-SCT
GB-ENG
GB-WLS
Does the assessment cover a marine EEZ area(s)?
Not assigned
Conservation Status
Assessed as
Least Concern
Abbreviated status
LC
Criteria system used
IUCN

(see Assessment details)

Assessment rationale/justification
Benson (1952) only knew this species from East Anglian fen habitats, but a significant range expansion seems to have occurred and it has since been found across much of England and Wales, north to Cumbria and Yorkshire. Assessments against all criteria give no reason to consider it threatened.
Assessment details
Year assessed
2023
Assessors/contributors/reviewers listed
Andy Musgrove
Criteria system used
IUCN
Reference for methods given
IUCN (2012) IUCN Red List Categories and Criteria. Version 3.1. 2nd Edition, IUCN Species Survival Commission. IUCN, Gland, Switzerland & Cambridge, UK plus regional guidelines v.432
URL (link) of redlist assessment or publication
https://www.sawflies.org.uk/wp-content/uploads/2023/08/Sawfly-Review-Phase-2-FINAL.pdf
Further information
Endemism (according to assessment)
Endemic to region
Not assigned
Population trends as listed in assessment
Population not undergoing continuing decline
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
A review of the status of the sawflies of Great Britain Phase 2: The Athaliidae and the Tenthredinidae (excluding Nematinae)
Musgrove, A.J. 2023. A review of the status of sawflies of Great Britain - Phase 2: The Athaliidae and the Tenthredinidae (excluding Nematinae). Natural England.