Bug Identifier
Firefly (also known as a Lightning Bug)
Community identification

Firefly (also known as a Lightning Bug)

Photinus pyralis

Order & Family
Order: Coleoptera; Family: Lampyridae
Size
10 mm to 14 mm (0.4 to 0.55 inches)
See this bug in the Encyclopedia

Natural Habitat

Moist environments such as marshes, woodlands, and urban gardens with high humidity.

Diet & Feeding

Larvae are predatory, feeding on snails, slugs, and worms; adults may eat nectar or pollen, though some do not eat at all.

Behavior Patterns

Crepuscular and nocturnal insects famous for bioluminescence used to attract mates; they undergo complete metamorphosis (egg, larva, pupa, adult).

Risks & Benefits

Non-toxic to humans but contain defensive chemicals (lucibufagins) that are poisonous to pets if ingested; they benefit the ecosystem by controlling garden pests like snails.