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Hermit Flower Beetles (Osmoderma)

The hermit flower beetles are a genus that belongs to the family of scarab beetles. They are known for giving off a characteristic odor similar to leather.

Hermit Flower Beetle

List of Species Belonging to this Genus

  • Hermit Beetle (Osmoderma eremicola)
  • Russian Leather Beetle (Osmoderma eremita)
  • Osmoderma brevipenne
  • Osmoderma caeleste
  • Osmoderma coriarium
  • Osmoderma cristinae
  • Osmoderma dallieri
  • Osmoderma davidis
  • Osmoderma italicum
  • Osmoderma lassallei
  • Osmoderma opicum
  • Osmoderma richteri
  • Osmoderma scabrum
  • Osmoderma sikhotense
  • Osmoderma subplanatum

Physical Description and Identification

Adult 

Size: 0.8-1.3 in (2.1-3.2 cm)

Color: They are a shiny black or brown in color.

Other Characteristic Features: These beetles are glossy and textured, but no distinguishable spots or markings are present.

Osmoderma

Larva

The larvae of these beetles are white, reaching 1-2 inches in length.

Hermit Flower Beetle Larvae

Pupa

Once the larvae mature, they start pupating. Pupation takes place inside a waterproof cell made of dirt and wood.

Egg

The eggs are laid in the dead and decaying hardwood trees.

Quick Facts

LifespanMales: 10-20 days
Females: 3 months
DistributionEurope and the Americas
HabitatOrchards and woodlands
PredatorsBirds like the lesser goldfinch and the red-headed woodpecker
Seasons activeNot recorded
Host PlantsDead tree trunks of plants like apple, ash, beech, cherry, maple, and hickory
Diet of adultsSap
Hermit Flower Beetle Picture

Identifying the Damage Caused by Them

As these beetles burrow in mostly dead and decaying host plants, they do not cause any notable damage.

Hermit Flower Beetle Image

Did You Know

  • Their name combines the Greek words osme, meaning smell, and derma, meaning skin.

Image Source: i.pinimg.com, bugguide.net, apps.extension.umn.edu, whatsthatbug.com, objects.liquidweb.services

The hermit flower beetles are a genus that belongs to the family of scarab beetles. They are known for giving off a characteristic odor similar to leather.

Hermit Flower Beetle

List of Species Belonging to this Genus

  • Hermit Beetle (Osmoderma eremicola)
  • Russian Leather Beetle (Osmoderma eremita)
  • Osmoderma brevipenne
  • Osmoderma caeleste
  • Osmoderma coriarium
  • Osmoderma cristinae
  • Osmoderma dallieri
  • Osmoderma davidis
  • Osmoderma italicum
  • Osmoderma lassallei
  • Osmoderma opicum
  • Osmoderma richteri
  • Osmoderma scabrum
  • Osmoderma sikhotense
  • Osmoderma subplanatum

Physical Description and Identification

Adult 

Size: 0.8-1.3 in (2.1-3.2 cm)

Color: They are a shiny black or brown in color.

Other Characteristic Features: These beetles are glossy and textured, but no distinguishable spots or markings are present.

Osmoderma

Larva

The larvae of these beetles are white, reaching 1-2 inches in length.

Hermit Flower Beetle Larvae

Pupa

Once the larvae mature, they start pupating. Pupation takes place inside a waterproof cell made of dirt and wood.

Egg

The eggs are laid in the dead and decaying hardwood trees.

Quick Facts

LifespanMales: 10-20 days
Females: 3 months
DistributionEurope and the Americas
HabitatOrchards and woodlands
PredatorsBirds like the lesser goldfinch and the red-headed woodpecker
Seasons activeNot recorded
Host PlantsDead tree trunks of plants like apple, ash, beech, cherry, maple, and hickory
Diet of adultsSap
Hermit Flower Beetle Picture

Identifying the Damage Caused by Them

As these beetles burrow in mostly dead and decaying host plants, they do not cause any notable damage.

Hermit Flower Beetle Image

Did You Know

  • Their name combines the Greek words osme, meaning smell, and derma, meaning skin.

Image Source: i.pinimg.com, bugguide.net, apps.extension.umn.edu, whatsthatbug.com, objects.liquidweb.services

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