Indian Black Ant

Camponotus compressus

This ant guards sap-sucking insects and lycaenid butterfly caterpillars against predators in exchange for sweet honeydew droplets.

Scientific name
Camponotus compressus
Taxonomy
Animalia › Arthropoda › Insecta › Hymenoptera › Formicidae › Camponotus
IUCN Red List status
Least Concern
Population trend
stable
Biome
forest
Habitat
Tropical dry deciduous forests, scrublands, open woodlands, agricultural borders, and urban gardens.
Diet
Omnivorous; feeds on floral nectar, fruit juice, small arthropods, carrion, and honeydew secreted by sap-sucking insects.
Range
India, Pakistan, Sri Lanka, Nepal, Bangladesh
Size
6–16 mm long for workers, queens up to 20 mm
Lifespan
6–12 months for workers, up to 10 years for queens
Active
nocturnal
Threats
Broad-spectrum insecticide use and extreme habitat alteration, though the species remains widespread and adaptable.
Safe to approach?
Harmless to humans. Large major workers can pinch skin with their mandibles and spray formic acid into the wound, causing a brief stinging sensation. If bitten, wash the area with soap and water; medical attention is rarely necessary.

Camponotus compressus is a species of ant found in India and Southeast Asia. It is a frequent visitor to toilets as it consumes urea. It is one of the many species which tends plant-sap-sucking insects like aphids and tree hoppers. These ants stroke their antenna on the hind parts of these insects stimulating them to excrete a sugar rich liquid, called honeydew, which the ants consume. In return, they are known to protect the insects from...

Photo: Subhadra Devi, CC-BY, via iNaturalist

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