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Bent-line Gray (Iridopsis larvaria)


Detailing the physical features, habits, territorial reach and other identifying qualities of the Bent-line Gray



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Image Credit: Alex -icycatelf- Bowen
Full-sized image of the Bent-Line-Gray-Moth Thumbnail image of the Bent-Line-Gray-Moth

Details in a moth's pattern really matter when a it is gray, especially when its a Gray.



Updated: 01/26/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
This moth has relatives that look remarkably similar. They are all called Grays, are shades of gray, and they are in the same genus. What helps tell this one apart is the sharpness the angle in the lowest black line on each wing. The others moths have lines that are more rounded and less severe. This is perhaps easiest to see in the hindwings. The middle, lighter band of color on each wing has an oval ring. Patches of brown may color the upper and lower bands.

The skinny green caterpillar has a bruise-colored mark in the middle of the ?back?. The upper part of the body may be reddish-brown, as if it was sunburned. The head is orange-brown and all of the colors darken as the caterpillar matures. This larva feeds on a variety of tree leaves like alder, birch, black cherry, maple, poplar, senna, and willow. Two broods can be produced each year.




General Characteristics
Capability, Shape, Texture/Pattern, Benefits, Dangers
Flying insect icon
Striped or banded insect icon




Taxonomic Hierarchy
Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Insecta
      Order: Lepidoptera
        Family: Geometridae
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          Genus: Iridopsis
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            Species: larvaria
Identifying Information
Size, Colors, Features
Scientific Name: Iridopsis larvaria
Category: Butterfly or Moth
Size (Adult; Length): 26mm to 36mm (1.02" to 1.41")
Colorwheel Graphic Colors: gray; brown; black; yellow
Descriptors: black lines; scalloped; brown under black; black comma; black curve; pale; flying
Relative Size Comparison
Typical Range Between 26mm and 36mm
Lo: 26mm
Md: 31mm
Hi: 36mm
Territorial Map*
U.S., Canada, and Mexico
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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 South Carolina graphic
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State of Virginia graphic
State of Washington graphic
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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
Alaska  
Hawaii  
Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Bent-line Gray 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 Bent-line Gray. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.

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