The National Red List Project

UKJNCC - Jcynosbati2022 | Janus cynosbati

Assessment ID
Jcynosbati2022
Taxon name
Janus cynosbati
Linnaeus, 1758
Uploaded by
JNCC
Taxonomic information
Scientific name
Janus cynosbati
Linnaeus, 1758
Common name(s)
Oak Stem-sawfly
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
cephidae
Genus
Janus
Species
cynosbati
Species authority
Linnaeus, 1758
National taxonomy system
UKSI
Unique national taxonomic ID
NHMSYS0021229916
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 (1951) said this species was found south-east of the Wash/Severn line although there have been several more recent records in northern England, plus single records in Scotland and Wales. The majority of records remain in the south, however, including a fair number in Devon and Cornwall. It feels likely that this species is probably very overlooked but at present, assessments against all criteria give no reason to consider it threatened.
Assessment details
Year assessed
2022
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.545
URL (link) of redlist assessment or publication
https://www.sawflies.org.uk/wp-content/uploads/2022/10/Sawfly-Review-Phase-1-FINAL.pdf
Further information
Endemism (according to assessment)
Endemic to region
Not assigned
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 1: Families other than the Tenthredinidae
Musgrove, A.J. 2022. A review of the status of sawflies of Great Britain - Phase 1: families other than Tenthredinidae. Natural England.