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Fiery Searcher Caterpillar Hunter (Calosoma scrutator)


Detailing the physical features, habits, territorial reach and other identifying qualities of the Fiery Searcher Caterpillar Hunter



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Image Credit: Wayne M. from Baldwyn, MS
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Image Credit: Wayne M. from Baldwyn, MS
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Image Credit: David F. from West Gardiner, ME
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Image Credit: Thierry R. from Marquez, TX
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Image Credit: Thierry R. from Marquez, TX
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The metallic green, gold and copper colors of the Fiery Searcher add beauty to function thanks to this Caterpillar Hunter's healthy appetite.



Updated: 01/26/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
The Fiery Searcher is a beetle that belongs to a genus of Caterpillar Hunters. They canvas tree trunks, limbs and branches in search of their primary food source: caterpillars. They also roam through grass and gardens to find prey. Their voracious appetite makes them a true gardener's friend. Fiery Searchers eat many types of caterpillars that would destroy melons, tomatoes, squash and other backyard staples. Strong, large jaws allow the Fiery Searcher to easily dispatch a plump caterpillar. These same strong jaws may also pinch a person's skin if handled roughly, but they are not poisonous or venomous. Look for Fiery Searchers in orchards, forests and parks with trees. Gardens with a Fiery Searcher roaming about are fortunate to have this hard-working ally on hand.

Adults are shiny and have a metallic gleam. The head, legs and thorax are glossy black. A gold border surrounds the edge of the thorax. The abdomen is mostly green with a thin red edge around all sides. Females lay fertilized eggs in soil. Hatched larvae pupate in cells on the ground and emerge as hungry adults. Only one generation is produced each year, but adults can live up to 3 years by seeking shelter over winter and resuming activities in the spring.




General Characteristics
Capability, Shape, Texture/Pattern, Benefits, Dangers
Flying insect icon
Shiny insect icon




Taxonomic Hierarchy
Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Coleoptera
        Family: Carabidae
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          Genus: Calosoma
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            Species: scrutator
Identifying Information
Size, Colors, Features
Scientific Name: Calosoma scrutator
Other Name(s): Caterpillar Hunter
Category: Beetle
Size (Adult; Length): 25mm to 35mm (0.98" to 1.37")
Colorwheel Graphic Colors: green, black, copper
Descriptors: shiny, metallic, flying, ridged, copper, gold
Relative Size Comparison
Typical Size Between 25mm (1.0in) and 35mm (1.4in)
Lo: 25mm
Md: 30mm
Hi: 35mm
Territorial Map*
U.S., Canada, and Mexico
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Territory map graphic of the country of Mexico
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Alaska  
Hawaii  
Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Fiery Searcher Caterpillar Hunter may be found (but is not limited to). This sort of data is useful when attempting to see concentrations of particular species across the continent as well as revealing possible migratory patterns over a species' given lifespan. Some insects are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America. States/Territories shown above are a general indicator of areas inhabited by the Fiery Searcher Caterpillar Hunter. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.

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