Firefly is a type of insect that can emit light that is clearly visible at night. .This light is generated by "cold rays" that contain no ultraviolet or infrared light and has a wavelength of 510 to 670 nanometers, with pale red, yellow, or green, with a light efficiency of up to 96%.
fireflies belong to the Lampyridae group, which is a family of Coleoptera beetles. There are over 2000 species of fireflies, which can be found in the four seasons and tropical regions of the world. many of these species are found in wetlands or wet forests where there is plenty of food available for the larvae.