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.
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Countries
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.
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
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.
Threats
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.
Found in 1 Country
Community Sightings
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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