Twospotted Lady Beetle
Adalia bipunctata
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Adalia_bipunctata
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
The Twospotted Lady Beetle faces severe population declines across its native European range due to competition from invasive species, particularly the Harlequin Ladybird (Harmonia axyridis), which outcompetes native ladybirds for food resources and habitat. Widespread pesticide use in agricultural and urban environments has significantly reduced both the beetle populations and their aphid prey base. Climate change is altering the timing of prey availability and disrupting the species' overwintering behavior, while habitat fragmentation in urban areas limits population connectivity and genetic diversity.
Habitat
The Twospotted Lady Beetle inhabits a diverse range of environments including deciduous and mixed forests, urban parks, gardens, agricultural fields, and grasslands where aphid populations are abundant. The species shows particular preference for areas with diverse plant communities that support varied aphid species, and requires suitable overwintering sites such as leaf litter, bark crevices, and building structures.
Other threatened species in Coccinellidae
Threatened in Åland Islands
Frequently asked questions
Why is Twospotted Lady Beetle classified as Vulnerable?
Where does Twospotted Lady Beetle live?
What are the main threats to Twospotted Lady Beetle?
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