Home / Ground Beetles (Carabidae) / Big Headed Ground Beetle (Scarites subterraneus)

Big Headed Ground Beetle (Scarites subterraneus)

Big headed ground beetle, a part of the ground beetle family, is indigenous to North America, Central America, and parts of the Caribbean Sea area.

Big Headed Ground Beetle

Scientific Classification

  • Family: Carabidae
  • Genus: Scarites
  • Scientific name: Scarites subterraneus

Physical Description and Identification

Adult

Size:  About 30 mm (1.18 inches)

Color: The big headed ground beetle has a black and shiny body.

Other Characteristic Features: They have large mandibles or jaws, alongside powerful legs helping them move at top speed and grab their meals.

Pedunculate Ground Beetle

Larva

The larva is about 19.05 mm (0.75 inches) long with a slender appearance.

Big Headed Ground Beetle Larvae

Pupa

The larva pupates in the small soil chambers from where they emerge into adults.

Eggs

The eggs are small, round and black, laid in clusters beneath the soil or residues of plants.

Quick Facts

Other NamesPedunculate ground beetle
LifespanAbout 1 year  
DistributionNorth America, Central America, parts of Caribbean Sea
HabitatForest floors, grasslands, gardens, scrublands, and agricultural areas mostly lying beneath leaf litter or logs
Seasons active fromMostly during spring and summer
Diet  of larvae and adultsCaterpillar, wireworms, maggots, snails, slugs, ants, aphids, and also seeds of certain weeds
Scarites subterraneus

Did You Know

  • Since they feed on worms, they are a farmer’s friends, helping to keep all those pests away that damage plants. 
  • Their alternate name, pedunculate ground beetle, results from the peduncle they have, connecting their elytra and pronotum.
Big-headed Ground Beetle Picture

Image Source: a4.pbase.com, americaninsects.net, i.ytimg.com, a4.pbase.com, cdn.whatsthatbug.com

Big headed ground beetle, a part of the ground beetle family, is indigenous to North America, Central America, and parts of the Caribbean Sea area.

Big Headed Ground Beetle

Physical Description and Identification

Adult

Size:  About 30 mm (1.18 inches)

Color: The big headed ground beetle has a black and shiny body.

Other Characteristic Features: They have large mandibles or jaws, alongside powerful legs helping them move at top speed and grab their meals.

Pedunculate Ground Beetle

Larva

The larva is about 19.05 mm (0.75 inches) long with a slender appearance.

Big Headed Ground Beetle Larvae

Pupa

The larva pupates in the small soil chambers from where they emerge into adults.

Eggs

The eggs are small, round and black, laid in clusters beneath the soil or residues of plants.

Quick Facts

Other NamesPedunculate ground beetle
LifespanAbout 1 year  
DistributionNorth America, Central America, parts of Caribbean Sea
HabitatForest floors, grasslands, gardens, scrublands, and agricultural areas mostly lying beneath leaf litter or logs
Seasons active fromMostly during spring and summer
Diet  of larvae and adultsCaterpillar, wireworms, maggots, snails, slugs, ants, aphids, and also seeds of certain weeds
Scarites subterraneus

Did You Know

  • Since they feed on worms, they are a farmer’s friends, helping to keep all those pests away that damage plants. 
  • Their alternate name, pedunculate ground beetle, results from the peduncle they have, connecting their elytra and pronotum.
Big-headed Ground Beetle Picture

Image Source: a4.pbase.com, americaninsects.net, i.ytimg.com, a4.pbase.com, cdn.whatsthatbug.com

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