Giant Water Bug

Scientific Name: Lethocerus americanus

Order & Family: Hemiptera / Belostomatidae

Size: 2 to 4 inches (5 to 10 cm)

Giant Water Bug

Natural Habitat

Ponds, marshes, and slow-moving freshwater streams

Diet & Feeding

Carnivorous predator of insects, tadpoles, small fish, and snails

Behavior Patterns

Ambush predator that breathes through a snorkel-like tube at the tail end; often flies to lights at night, earning the nickname 'Toe-Biter' or 'Electric Light Bug'

Risks & Benefits

Possesses a very painful bite if handled (risk); helps control population levels of small aquatic pests and is an indicator of water quality (benefit)

Identified on: 2/4/2026