A Common butterfly of the island found in all climatic zones throughout
the year. W.Ormiston described unusual
habit of male Common cerulean of taking up a position for days, and attacking
every butterfly of about its own size that passes (The Butterflies
of Ceylon Ormiston W. 1924). Larva of Common cerulean feeds on Centrosema plumieri, Entada zeylanica, Abrus precatorius (ඔළිඳ/Crab's Eyes/Indian Liquorice), Abrus melanospermus, Entada rheedei (පුස් වැල්), වල් උඳු (Flemingia macrophylla), Pongamia pinnata (මඟුල් කරඳ/ගල් කරඳ/කරඳ/Indian Beech/Mullikulam Tree),Phaseolus vulgaris, Neustanthus phaseoloides, Vigna hosei, Vigna unguiculata (මෑ කරල්/ ලී මෑ/වඳුරු මෑ/Black-eye Bean/Cowpea) and Vigna radiata (මුං/මුං ඇට/බූ මෑ/Green gram/Jerusalem pea/Mung bean)