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The previous dataset is available via: https://archive.nationalredlist.org/. This site is no longer updated but can help with most enquiries whilst we focus on redevelopment.

LC

Assessment ID
Pcompressa2024
Taxon name
Pristiphora compressa
Hartig, 1837
Uploaded by
JNCC
Taxonomic information
Scientific name
Pristiphora compressa
Hartig, 1837
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Pristiphora
Species
compressa
Species authority
Hartig, 1837
National taxonomy system
UKSI
Unique national taxonomic ID
NBNSYS0000013547
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold and the number of recent locations is less than 10 but there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. Whilst the data are close to providing justification of a status of VU under B2, species of commercial forestry are very under-recorded and so it seems more appropriate to retain the status of Least Concern rather than assigning a Near Threatened status.
Assessment details
Year assessed
2024
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.51
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Ppallidiventris2024
Taxon name
Pristiphora pallidiventris
Fallen, 1808
Uploaded by
JNCC
Taxonomic information
Scientific name
Pristiphora pallidiventris
Fallen, 1808
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Pristiphora
Species
pallidiventris
Species authority
Fallen, 1808
National taxonomy system
UKSI
Unique national taxonomic ID
NBNSYS0000013568
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.49
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Ppunctifrons2024
Taxon name
Pristiphora punctifrons
Thomson, 1871
Uploaded by
JNCC
Taxonomic information
Scientific name
Pristiphora punctifrons
Thomson, 1871
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Pristiphora
Species
punctifrons
Species authority
Thomson, 1871
National taxonomy system
UKSI
Unique national taxonomic ID
NBNSYS0000013571
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.48
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Plaricis2024
Taxon name
Pristiphora laricis
Hartig, 1837
Uploaded by
JNCC
Taxonomic information
Scientific name
Pristiphora laricis
Hartig, 1837
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Pristiphora
Species
laricis
Species authority
Hartig, 1837
National taxonomy system
UKSI
Unique national taxonomic ID
NBNSYS0000013559
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.45
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Nlucidus2024
Taxon name
Nematus lucidus
Panzer, 1801
Uploaded by
JNCC
Taxonomic information
Scientific name
Nematus lucidus
Panzer, 1801
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Nematus
Species
lucidus
Species authority
Panzer, 1801
National taxonomy system
UKSI
Unique national taxonomic ID
NBNSYS0000013662
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.42
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Nseptentrionalis2024
Taxon name
Nematus septentrionalis
Linnaeus, 1758
Uploaded by
JNCC
Taxonomic information
Scientific name
Nematus septentrionalis
Linnaeus, 1758
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Nematus
Species
septentrionalis
Species authority
Linnaeus, 1758
National taxonomy system
UKSI
Unique national taxonomic ID
NHMSYS0021240598
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.41
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Nlatipes2024
Taxon name
Nematus latipes
Villaret, 1832
Uploaded by
JNCC
Taxonomic information
Scientific name
Nematus latipes
Villaret, 1832
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Nematus
Species
latipes
Species authority
Villaret, 1832
National taxonomy system
UKSI
Unique national taxonomic ID
NHMSYS0020481592
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.40
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Nalniastri2024
Taxon name
Nematus alniastri
Scharfenberg, 1805
Uploaded by
JNCC
Taxonomic information
Scientific name
Nematus alniastri
Scharfenberg, 1805
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Nematus
Species
alniastri
Species authority
Scharfenberg, 1805
National taxonomy system
UKSI
Unique national taxonomic ID
NHMSYS0021240593
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.38
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Mopaca2024
Taxon name
Mesoneura opaca
Fabricius, 1775
Uploaded by
JNCC
Taxonomic information
Scientific name
Mesoneura opaca
Fabricius, 1775
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Mesoneura
Species
opaca
Species authority
Fabricius, 1775
National taxonomy system
UKSI
Unique national taxonomic ID
NHMSYS0020481394
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.37
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.
Assessment ID
Nsteini2024
Taxon name
Nematinus steini
Blank, 1998
Uploaded by
JNCC
Taxonomic information
Scientific name
Nematinus steini
Blank, 1998
Assessed taxon level
Species
Higher level taxonomic groupings
Invertebrates
Insects
Kingdom
Animalia
Phylum
arthropoda
Class
insecta
Order
hymenoptera
Family
tenthredinidae
Genus
Nematinus
Species
steini
Species authority
Blank, 1998
National taxonomy system
UKSI
Unique national taxonomic ID
NHMSYS0020481434
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
Assessments against all criteria give no reason to consider it threatened. The estimated rate of decline in range over the last 10 years does not exceed the 30% decline required for qualification as VU against Criterion A; EOO far exceeds the 20,000km2 VU threshold for Criterion B and the number of locations exceeds five, exceeding the Criterion D2 threshold. There is no information on population size to assess against Criteria C and D1 and no life history models to inform assessments against Criterion E. The AOO is below the Criterion B threshold but the number of recent locations exceeds 10 and there is no evidence of continuing decline, fragmentation or extreme fluctations in the population. None of the estimates approach the thresholds sufficiently to suggest NT might be an appropriate categorisation.
Assessment details
Year assessed
2024
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.36
Further information
Endemism (according to assessment)
Endemic to region
No
Habitat and systems
Ecological system type
Terrestrial
Yes
Freshwater
No
Marine
No
Publication
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England.