Fiery Searcher (or Caterpillar Hunter)

Scientific Name: Calosoma scrutator

Order & Family: Order: Coleoptera; Family: Carabidae

Size: 25 to 35 mm (1 to 1.4 inches) in length

Fiery Searcher (or Caterpillar Hunter)

Natural Habitat

Deciduous forests, orchards, and gardens throughout North America

Diet & Feeding

Strictly carnivorous; mainly feeds on caterpillars and soft-bodied larvae, but may consume other insects

Behavior Patterns

Active predators that hunt primarily at night. They are strong fliers and are often attracted to bright lights. They can climb trees to find prey.

Risks & Benefits

Benefits include biological pest control by consuming harmful caterpillars. Risks to humans are minimal, but they can emit a foul-smelling secretion and may bite if handled roughly.

Identified on: 3/20/2026