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Hermit Flower Beetle (Osmoderma eremicola)

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

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Harmless yet stinky, the Hermit Flower Beetle earned its name thanks to its quiet way of living, minding its own business without bothering anybody.

Updated: 07/06/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
Black, textured, and glossy, Hermit Flower Beetles lack any spots or patterns that could give them a more interesting appearance, but they are content with that. Preferring to remain unnoticed, adults can be found visiting flowers. They have the ability to emit a noxious odor when frightened. The smell is difficult to describe, but definitely pungent and obvious. Those familiar with traditional tannery practices using tree bark (instead of modern chemicals) have likened it to smell creating when preparing leather. Adult Hermit Flower Beetles are attracted to lights at night.

Hermit Flower Beetle larvae are large, white grubs that reside inside dead or rotting wood and logs. They don't harm living, healthy trees; they only take advantage of the space created by dead/dying ones. This species helps break down dead tree tissue, making this small, recluse a great asset to the nutrient cycle.

General Characteristics
Capability, Shape, Texture/Pattern, Benefits, Dangers
Flying insect icon
Smelly insect icon


Taxonomic Hierarchy
Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Coleoptera
        Family: Scarabidae
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          Genus: Osmoderma
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            Species: eremicola
Identifying Information
Size, Colors, Features
Scientific Name: Osmoderma eremicola
Category: Beetle
Size (Adult; Length): 25mm to 30mm (0.98" to 1.18")
Colorwheel Graphic Colors: black, brown
Descriptors: flying, smelly, stinky, odor, large, dark

Relative Size Comparison
Typical Size Between 25mm (1.0in) and 30mm (1.2in)
Lo: 25mm
Md: 27.5mm
Hi: 30mm
Territorial Map*
U.S., Canada, and Mexico
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Territory map graphic of the country of Mexico
Contiguous United States shape map layer graphic
Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Hermit Flower 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 Hermit Flower Beetle. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.


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