Bog dancers bug carnivorous closeup Damselflies damselfly damsels delicate devils darning needles insect Insect predator macro narrow wings predator transparent wings compound eyes eyes green Kanangi Karkala karnataka shiny Western Ghats Incredible India animals aquatic insect aquatic predator float krayker pond pond skater water strider grasshopper hunt kill prey spider bright dragonfly fly leaves pest rest resting