Home / Scarab Beetles (Scarabaeidae) / Triceratops Beetle (Phileurus truncates)

Triceratops Beetle (Phileurus truncates)

Triceratops beetle belonging to the scarab beetle family is indigenous to certain parts of the United States like Virginia, Tennessee, Arizona, and Florida. Their name is an outcome of the three tiny horns present on the head of both sexes,. making them replicate the age-old dinosaur.

Triceratops Beetle

Scientific Classification

  • Family: Scarabaeidae
  • Genus: Phileurus
  • Scientific name: Phileurus truncates

Physical Description and Identification

Adult

Size: 32 – 38 mm (1.25 – 1.49 inches)

Color: These beetles have an overall black body with orange-brown hairs.

Other Characteristic Features: Besides the horny projections on their head, as mentioned above, they even have a rounded bumpy pronotum. They also have a glossy appearance with dimple-like structures all over.

Male Triceratops Beetle

Larva

They mostly feed on decayed woods, preferably oak trees.

Triceratops Beetle Larva

Pupa

Once matured, they make holes inside the wood for the pupation phase. The pupa may often be spotted in a decayed tree stump’s bark.

Egg

The eggs are oval and pale brown.

Identifying the Damage Caused by Them

Since the adults and the larvae bore inside the wood, they cause significant damage to it.

Quick Facts

Adult lifespanApproximately two years (especially if kept in captivity) 
Duration of larval stageAbout six months
DistributionVirginia, southeastern Arizona, western parts of Arizona , southern regions of Florida 
HabitatWoodlands, within rotting wood
Seasons active fromMarch – June
Host PlantsOak
Diet of larvae and adultsLarvae: Decayed wood
Adults: Larvae of wood-dwelling insects
Phileurus truncates

Did You Know

  • These long-lived beetles are a common pet choice among beetle hobbyists and enthusiasts.
  • The triceratops beetle expresses its agony by emitting a squeaking sound if disturbed.
Triceratops Beetle Image

Image Source: a4.pbase.com, bugguide.net, arthurevans.files.wordpress.com, i.pinimg.com

Triceratops beetle belonging to the scarab beetle family is indigenous to certain parts of the United States like Virginia, Tennessee, Arizona, and Florida. Their name is an outcome of the three tiny horns present on the head of both sexes,. making them replicate the age-old dinosaur.

Triceratops Beetle

Physical Description and Identification

Adult

Size: 32 – 38 mm (1.25 – 1.49 inches)

Color: These beetles have an overall black body with orange-brown hairs.

Other Characteristic Features: Besides the horny projections on their head, as mentioned above, they even have a rounded bumpy pronotum. They also have a glossy appearance with dimple-like structures all over.

Male Triceratops Beetle

Larva

They mostly feed on decayed woods, preferably oak trees.

Triceratops Beetle Larva

Pupa

Once matured, they make holes inside the wood for the pupation phase. The pupa may often be spotted in a decayed tree stump’s bark.

Egg

The eggs are oval and pale brown.

Identifying the Damage Caused by Them

Since the adults and the larvae bore inside the wood, they cause significant damage to it.

Quick Facts

Adult lifespanApproximately two years (especially if kept in captivity) 
Duration of larval stageAbout six months
DistributionVirginia, southeastern Arizona, western parts of Arizona , southern regions of Florida 
HabitatWoodlands, within rotting wood
Seasons active fromMarch – June
Host PlantsOak
Diet of larvae and adultsLarvae: Decayed wood
Adults: Larvae of wood-dwelling insects
Phileurus truncates

Did You Know

  • These long-lived beetles are a common pet choice among beetle hobbyists and enthusiasts.
  • The triceratops beetle expresses its agony by emitting a squeaking sound if disturbed.
Triceratops Beetle Image

Image Source: a4.pbase.com, bugguide.net, arthurevans.files.wordpress.com, i.pinimg.com

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