CRCritically Endangered

smal treblomsterfluge

Temnostoma angustistriatum

Conservation status data sourced from the IUCN Red List of Threatened Species.

01Classification

Taxonomy & Classification

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Temnostoma

smal treblomsterfluge belongs to the family Syrphidae, order Diptera, within the Insecta class.

02Description

Species Profile

Species profile data sourced from the IUCN Red List of Threatened Species.

Temnostoma angustistriatum faces severe population declines due to widespread habitat loss from deforestation and agricultural conversion of its specialized woodland environments. Climate change is altering the phenology of both the species and its host plants, disrupting critical breeding cycles. The species' narrow habitat requirements and limited dispersal ability make it particularly vulnerable to landscape fragmentation.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupInsects
03Habitat

Habitat & Distribution

Deciduous and mixed woodlands with abundant dead wood and tree hollows, particularly favoring mature forest edges and clearings with flowering plants. The species requires specific microhabitats including rotting tree stumps and fallen logs where larvae develop.

04Threats

Threats

!

IUCN Red List: Critically Endangered

Temnostoma angustistriatum faces severe population declines due to widespread habitat loss from deforestation and agricultural conversion of its specialized woodland environments. Climate change is altering the phenology of both the species and its host plants, disrupting critical breeding cycles. The species' narrow habitat requirements and limited dispersal ability make it particularly vulnerable to landscape fragmentation.

Agricultural intensification and land conversion

HighOngoing

Climate change disrupting host plant relationships

HighOngoing

Habitat loss and fragmentation from deforestation

HighOngoing

Loss of dead wood microhabitats from forest management

MediumOngoing

Pesticide use in agricultural landscapes

MediumOngoing
07National Status

National vs Global Threat Status

How this species is assessed at the national level compared to its IUCN global status (CR).

CountryNational StatusGlobal StatusComparison
EUENEndangeredCRCritically EndangeredLower local risk
EUENEndangeredCRCritically EndangeredLower local risk

National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.

Community

Community Sightings

Report a sighting

No community sightings yet. Be the first to report!

07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org

This page: SpeciesRadar (2025). smal treblomsterfluge (Temnostoma angustistriatum). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/smal-treblomsterfluge

Full citation guide & data usage terms