Congregative-movement
Guides
Aphis varians
Aphis varians is an aphid species described by Patch in 1914. Research has demonstrated that this species employs aggregation as an effective anti-predator strategy, with individuals benefiting from reduced per capita predation risk when grouped together. The species serves as prey for the convergent lady beetle Hippodamia convergens, with which it has been studied in predator-prey interaction research.