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One of the most enchanting sights of the season is the delicate light of fireflies blinking in the night. There are over 200 species of fireflies in North America. Among the flashing fireflies, each separate species has its own unique flash pattern of signal. Entomologist Susan Weller explains the purpose for the flash: "Males and females find each other by exchanging light flashes called bioluminesence, or by emitting chemicals called pheromones. In flashing species, males cruise and flash at or above the tree line at the edge of meadows. Females usually sit on bushes and other low plants, and wait for the right male before flashing a return signal." Novelty, Ohio 05/16/13

Hummingbird and Distribution Map