a soft-bodied beetle related to the glow-worm, the winged male and flightless female of which both have luminescent organs. The light is chiefly produced in flashes and typically functions as a signal between the sexes 火萤,熠萤
Family Lampyridae: many species, especially in the tropics, and including the European Luciola lusitanica 萤科:多种,多产于热带,包括欧洲的黄胸黑翅萤