CRCritically Endangered

Merodon longispina

Merodon longispina is a critically endangered hoverfly species belonging to the family Syrphidae. This distinctive dipteran is characterized by its elongated spines, which give the species its name.

1

Countries

01Classification

Taxonomy & Classification

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Merodon

Merodon longispina belongs to the family Syrphidae, order Diptera, within the Insecta class.

02Description

Species Profile

Merodon longispina is a critically endangered hoverfly species belonging to the family Syrphidae. This distinctive dipteran is characterized by its elongated spines, which give the species its name. Like other members of the Merodon genus, M. longispina adults are important pollinators that feed on nectar and pollen from various flowering plants, while their larvae typically develop in bulbs and underground plant structures. The species has an extremely limited distribution range, making it particularly vulnerable to environmental changes and habitat disturbance. Its critical conservation status reflects the severe decline in suitable habitat and the species' restricted geographic occurrence. The primary threats to M. longispina include habitat loss and degradation, particularly the destruction of natural areas containing the specific host plants required for larval development. Agricultural intensification, urbanization, and changes in land use practices have significantly reduced the availability of appropriate breeding sites. Climate change may also pose additional challenges by altering the distribution and phenology of both the species and its host plants. Currently, there is limited information available about specific conservation efforts targeting this species, highlighting the urgent need for comprehensive research and targeted protection measures. The unknown population trend emphasizes the critical importance of immediate survey work to assess current population status and implement appropriate conservation strategies before further decline occurs.

Merodon longispina faces severe threats from habitat loss and degradation caused by agricultural intensification and urban development. The destruction of natural areas containing specific host plants required for larval development has significantly reduced breeding opportunities. Climate change may further impact the species by altering the distribution and timing of both the hoverfly and its essential host plants.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupInsects
03Habitat

Habitat & Distribution

Merodon longispina inhabits natural areas where specific bulbous plants serve as larval hosts, with adults requiring access to diverse flowering plants for nectar feeding. The species appears to depend on relatively undisturbed habitats that maintain stable populations of both host plants and nectar sources.

04Threats

Threats

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IUCN Red List: Critically Endangered

Merodon longispina faces severe threats from habitat loss and degradation caused by agricultural intensification and urban development. The destruction of natural areas containing specific host plants required for larval development has significantly reduced breeding opportunities. Climate change may further impact the species by altering the distribution and timing of both the hoverfly and its essential host plants.

Detailed threat classification data is sourced from IUCN assessments as they become available.

06Range

Found in 1 Country

Community

Community Sightings

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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

This page: SpeciesRadar (2025). Merodon longispina (Merodon longispina). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/merodon-longispina-1544356

Full citation guide & data usage terms