Common Eastern Firefly

Scientific Name: Photinus pyralis

Order & Family: Coleoptera: Lampyridae

Size: 10 to 14 millimeters (approx. 0.4 to 0.55 inches)

Common Eastern Firefly

Natural Habitat

Found in meadows, suburban backyards, and the edges of wooded areas, particularly in humid environments near water.

Diet & Feeding

Larvae are predatory and eat slugs, snails, and worms. Adults may eat pollen, nectar, or nothing at all during their short lifespan.

Behavior Patterns

Crepuscular and nocturnal; they use bioluminescent flashes to attract mates. They exhibit a 'J-stroke' flight pattern while flashing.

Risks & Benefits

Benefits include biological pest control of slugs and snails during the larval stage. They are harmless to humans but may be toxic if ingested by pets due to lucibufagins.

Identified on: 2/6/2026