Sphaerophoria loewi

Key Details

Taxonomic Groups: Invertebrate > insect - true fly (Diptera) > Hoverfly
Red List Status: Near Threatened (Not Relevant) [NT(nr)]
D5 Status: Included in the baseline Red List Index for England (Wilkins, Wilson & Brown, 2022)
Section 41 Status: (not listed)
Taxa Included Synonym: (none)
UKSI Recommended Name: Sphaerophoria loewi
UKSI Recommended Authority: Zetterstedt, 1843
UKSI Recommended Qualifier: (none specified)
Red List Citation: Ball & Morris, 2014
Notes on taxonomy/listing: (none)

Criteria

Question 1: Does species need conservation or recovery in England?
Response: Yes
Justification: Clearly very rare in England with most records representing brackish coastal sites but also a few brackish inland sites plus a few anomalous non-Brackish sites. Very rare in Wales and Scotland. Near Threatened in Europe (IUCN).
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: Yes
Justification: Currently there is insufficient understanding of the specific needs of this species .
Question 3: At a landscape scale, would the species benefit from untargeted habitat management to increase habitat mosaics, structural diversity, or particular successional stages?
Response: No
Justification: This species would not benefit from untargeted management

Species Assessment

Current step on the Species Recovery Curve (SRC): 4. Autecology and pressures understood
Recovery potential/expectation: Unknown
National Monitoring Resource: Opportunistic - insufficient
Species Comments: Preserving, enhancing and improving the connectivity of brackish coastal marsh, especially the presence of Sea Clubrush and Common Reed, will be of importance.

Key Actions

Key Action 1

Proposed Action: Specific targeted surveying/monitoring in its key area to investigate its current status (to feed into a revision of the Red List), the extent of populations and whether there are specific habitat needs. This could be linked to the Lejops vittata work.

Action targets: 2. Biological status assessment exists

Action type: Status survey/review

Duration: 2 years

Scale of Implementation: ≤ 50 sites

High priority sites: Christchurch Harbour, the Solent, Sussex, Kent, Thames Gateway and East Anglia.

Comments:

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Acknowledgment:
Data used on this website are adapted from Threatened species recovery actions 2025 baseline (JP065): Technical report and spreadsheet user guide (Natural England, 2025). Available here.