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Triceratops Beetle (Phileurus truncatus)

Detailing the physical features, habits, territorial reach and other identifying qualities of the Triceratops Beetle

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A trio of pointed tips on the head liken this hefty beetle to the popular dinosaur.

Updated: 02/16/2022; Authored By Staff Writer; Content ©www.InsectIdentification.org
The Triceratops Beetle is a type of Rhinoceros Beetle. The large, black body has short orange-brown hairs that peek out from under the sides and head. Two long black horns extend from the front of the large eyes. The front of the jaw curls upward to a point, like tapered duck bill. These three projections, on a smaller scale, are similar to those seen on a triceratops fossil. The front legs are wide and flat with finger-like growths near the 'knee' joint. The pronotum is rounded, but has a slight depression down the middle and a small bump sits at the top of this cleavage. The whole beetle is glossy with small dimples or depressions all over it.

This is a woodland beetle. Its larvae live inside rotting wood. Adults and larvae feed on other insects, especially grubs from other types of beetles. Adults are able to make faint sounds by rubbing legs together, and they are attracted to lights. Look for Triceratops Beetles from late spring to early autumn around areas of decaying wood.©InsectIdentification.org

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General Characteristics

Capability, Shape, Texture/Pattern, Benefits, Dangers
Spiny / Spiky insect icon

Taxonomic Hierarchy

Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Coleoptera
        Family: Scarabaeidae
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          Genus: Phileurus
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            Species: truncatus

Identifying Information

Size, Colors, Features
Scientific Name: Phileurus truncatus
Other Name(s): Loving Scarab Beetle; Double-horned Rhino Beetle
Category: Beetle
Size (Adult; Length): 32mm to 38mm (1.25" to 1.49")
Colorwheel Graphic Colors: black
Descriptors: horns; curved duck bill; point mouth; three; big; orange hairs

Relative Size Comparison

Typical Size Between 32mm (1.3in) and 38mm (1.5in)
Lo: 32mm
Md: 35mm
Hi: 38mm

Territorial Map*

U.S., Canada, and Mexico
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Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Triceratops Beetle 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 Triceratops Beetle. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.
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