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Lesser Ivory-marked Beetle (Eburia mutica)

Detailing the physical features, habits, territorial reach and other identifying qualities of the Lesser Ivory-marked Beetle

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Image Credit: Manzeal Khanal, taken in Uvalde, TX
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Smaller white spots on the wing coverings of this beetle make them less visible than a similar relative.

Updated: 07/07/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
The Lesser Ivory-marked Beetle is a Long-horned beetle thanks to its long antennae. It is brown with a slight gray hue, and is punctuated by four sets of white marks or dots. Two of these sets are near the head where the pronotum (neck) connects to the elytra (wing coverings). Another two sets are more than halfway down the elytra. Some individuals are missing the lower set. Others only have a single white mark in each of the four areas. The size of the white marks may be small and barely visible, or they may be quite obvious. Outer marks may be longer than the inner ones.

This is a wood boring beetle, but it uses dead branches, not live ones, so it does not impact the health of a tree like other borers might. Hickory, mesquite, elm, citrus, Jerusalem thorn, Texas ebony, and Arizona white oak are some deciduous trees that this beetle uses as a host plant. Spiny hackberry and boxelder shrubs are also used. Look for adults on host plants in desert, chaparral, backyards, and parks during the hot summer months.

General Characteristics
Capability, Shape, Texture/Pattern, Benefits, Dangers
Insect antennae icon
Flying insect icon
Patterned insect icon


Taxonomic Hierarchy
Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Coleoptera
        Family: Cerambycidae
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          Genus: Eburia
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            Species: mutica
Identifying Information
Size, Colors, Features
Scientific Name: Eburia mutica
Category: Beetle
Size (Adult; Length): 14mm to 24mm (0.55" to 0.94")
Colorwheel Graphic Colors: brown; white; gray
Descriptors: two white marks; small white dots; long antennae; flying

Relative Size Comparison
Typical Size Between 14mm (0.6in) and 24mm (0.9in)
Lo: 14mm
Md: 19mm
Hi: 24mm
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 Lesser Ivory-marked 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 Lesser Ivory-marked Beetle. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.


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