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Common Angle (Macaria aemulataria)

Detailing the physical features, habits, territorial reach and other identifying qualities of the Common Angle

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Image Credit: Alex -icycatelf- Bowen
Full-sized image of the Common-Angle-Moth Thumbnail image of the Common-Angle-Moth

The ubiquitous and pale Common Angle Moth may be so widespread thanks to the vast range of its host plant.

Updated: 01/26/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
Maple trees are the preferred foliage of the Common Angle caterpillar. This means the adult moth can find a good host tree in almost every part of the continent. The small geometer moth has somewhat pointed tips on its pale ivory hindwings. The larger forewings are usually held open and flat, but cross over each other and cover part of the abdomen. Faint brown lines curve around the wings and body. Two dark brown patches that are likened to paw prints sit near the lower part of each wing. A curved indentation on the outer edge of the wings is lined in dark brown.

Caterpillars for the Common Angle Moth are narrow and bright green. Like other geometer caterpillars, they can stiffen their bodies while clinging to a branch making them look like a fresh twig. They feed on all varieties of maple leaves.

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


Taxonomic Hierarchy
Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Lepidoptera
        Family: Geometridae
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          Genus: Macaria
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            Species: aemulataria
Identifying Information
Size, Colors, Features
Scientific Name: Macaria aemulataria
Category: Butterfly or Moth
Size (Adult; Length): 20mm to 22mm (0.78" to 0.86")
Colorwheel Graphic Colors: ivory, brown, black, tan
Descriptors: dark spot, cream, pale, angled, flying

Relative Size Comparison
Typical Size Between 20mm (0.8in) and 22mm (0.9in)
Lo: 20mm
Md: 21mm
Hi: 22mm
Territorial Map*
U.S., Canada, and Mexico
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State of Delware graphic
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State of New Jersey graphic
State of New Mexico graphic
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State of North Carolina graphic
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State of Tennessee graphic
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State of Virginia graphic
State of Washington graphic
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State of Wyoming graphic
Canadian territory of Alberta graphic
Canadian territory of British Columbia graphic
Canadian territory of Manitoba graphic
Canadian territory of New Brunswick graphic
Canadian territory of Newfoundland and Labrador graphic
Canadian territory of Ontario graphic
Canadian territory of Quebec graphic
Canadian territory of Saskatchewan graphic
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 Common Angle 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 Common Angle. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.


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