possible to see as many fireflies spend their days resting on blades of grass Firefly.org: Habitat http://www.firefly.org/firefly-habitat.html spend their days resting on blades of grass spend their days resting on blades of grass spend their days resting on blades of grass lightning bugs http://www.firefly.org/firefly-habitat.html http://www.firefly.org/firefly-habitat.html spend their days resting on blades of grass https://www.firefly.org/firefly-habitat.html http://www.firefly.org/firefly-habitat.html