Dark Grass Blue
VUVulnerable

Dark Grass Blue

Zizeeria karsandra

# Dark Grass Blue (Zizeeria karsandra) The Dark Grass Blue is a small butterfly with a wingspan of 18-25mm. Males display bright blue upperwings with narrow dark borders, while females are predominantly brown with blue patches near the wing bases.

48

Countries

Photo: iNaturalist: (c) Roger Rittmaster, some rights reserved (CC BY), uploaded by Roger Rittmaster

01Classification

Taxonomy & Classification

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Lycaenidae

Genus

Zizeeria

Dark Grass Blue belongs to the family Lycaenidae, order Lepidoptera, within the Insecta class.

02Description

Species Profile

# Dark Grass Blue (Zizeeria karsandra) The Dark Grass Blue is a small butterfly with a wingspan of 18-25mm. Males display bright blue upperwings with narrow dark borders, while females are predominantly brown with blue patches near the wing bases. The underwings of both sexes are pale gray with distinctive black spots ringed in white. This species exhibits rapid, low flight patterns close to the ground and feeds primarily on nectar from small flowers. As pollinators, they contribute to plant reproduction in their ecosystems, while their caterpillars feed on various leguminous plants. The Dark Grass Blue demonstrates one of the most extensive distributions among butterfly species, spanning from the Mediterranean through Asia to Australia and the Pacific islands. It inhabits diverse environments including grasslands, agricultural areas, urban gardens, coastal regions, and disturbed habitats up to 2,000 meters elevation. This adaptability has enabled its presence across 47 countries and territories. Despite its wide range, the species faces mounting pressures from habitat conversion, intensive agricultural practices, and urban development. Climate change may be altering the distribution of suitable habitats, while pesticide use in agricultural areas poses direct threats to both adults and larvae. The fragmentation of grassland habitats reduces breeding opportunities and population connectivity. Currently, no species-specific conservation programs exist for the Dark Grass Blue. Some populations benefit indirectly from general habitat protection measures and reduced pesticide use in certain regions. However, the lack of comprehensive population monitoring across its range hampers conservation planning. The species' future remains uncertain. While its adaptability suggests resilience, continued habitat loss and environmental pressures may lead to further population declines without targeted conservation intervention.

The Dark Grass Blue butterfly faces significant population declines primarily due to habitat loss from agricultural expansion and urban development across its range. Grassland conversion and degradation of its preferred open habitats have fragmented populations and reduced available breeding sites.

Key Facts

IUCN StatusVulnerable (VU)
GroupInsects
04Threats

Threats

Agricultural expansion and intensification

HighOngoing

Urban development and habitat fragmentation

HighOngoing

Climate change affecting host plant availability

MediumOngoing

Grassland conversion and degradation

MediumOngoing

Pesticide use in agricultural areas

MediumOngoing
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

This page: SpeciesRadar (2025). Dark Grass Blue (Zizeeria karsandra). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/dark-grass-blue

Full citation guide & data usage terms