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Pine Sawyer Beetle (Ergates spiculatus)

Detailing the identifying qualities of the Pine Sawyer Beetle, including physical features and territorial reach.

 Updated: 1/27/2014; Authored By Staff Writer; Content ¬©

  Pine Sawyer Beetle  
Picture of Pine-Sawyer-Beetle
Picture of Pine-Sawyer-Beetle Picture of Pine-Sawyer-Beetle

Since the Pine Sawyer Beetle loves high altitudes and evergreens, the Rocky Mountains are the right place to call home.

Pine Sawyer Beetles are found in coniferous forests at elevations over 1,200 meters. Ponderosa Pine tree and Douglas Firs are preferred habitat. Active at dusk, adults can be seen flying near lights (males) or walking on logs or stumps. The pronotum ('shoulder' area) has spines on it and their armor-like wings are highly textured.

Females lay fertilized eggs in the bark of dead or decaying trees, stumps and logs. Larvae hatch and proceed bore through dead wood, feeding on the sap inside as well as the heartwood in the center. They emerge as adults in summer, leaving behind their tunnels and capsule-shaped exit holes.

Picture of the Pine Sawyer Beetle
Picture of the Pine Sawyer Beetle

Pine Sawyer Beetle Information

Category: Beetle
Common Name: Pine Sawyer Beetle
Scientific Name: Ergates spiculatus
Other Name(s): Spiny Wood Borer Beetle, Ponderous Pine Borer Beetle, Spine-Necked Longhorn Beetle

Taxonomy Hierarchy

 Arrow graphic Kingdom: Animalia
  Arrow graphic Phylum: Arthropoda
   Arrow graphic Class: Insecta
    Arrow graphic Order: Coleoptera
     Arrow graphic Family: Cerambycidae
      Arrow graphic Genus: Ergates
       Arrow graphic Species: spiculatus

Size, Identifying Tags and Territorial Reach

Size (Adult, Length): Size (Adult, Length): 40 mm to 65 mm (1.56 inches to 2.535 inches)
Identifying Colors: brown; black
Additional Descriptors: flying, neck, spikes

North American Territorial Reach (Though Not Limited To): Arizona, California, Idaho, Montana, Nevada, Oregon, Washington,

A Note About Territorial Reach: Keep in mind that an insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above. Insects are driven by environmental factors, food supplies and mating patterns and do not nescessarily work within hard-and-fast territorial lines like we humans do.

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