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

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