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Cocklebur Weevil (Rhodobaenus quinquepunctatus)


Detailing the physical features, habits, territorial reach and other identifying qualities of the Cocklebur Weevil



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The red and black Cocklebur Weevil is a common visitor to composite flowers.



Updated: 01/26/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
Plants like sunflowers, cocklebur, and ragweed are attractive to Cocklebur Weevils. Each long red and black weevil has a black oval-shaped spot on the middle of its pronotum and several black dots on the wing coverings. The amount of black on the lower half of the wing coverings varies with some individuals showing a large blob, while others look like they were dipped in black ink. All have the trademark 'snout' or 'nose' on the face that is common with most weevils. This type of beetle uses that long rostrum to chew into plants. Their feeding habit leaves plant stems with dry patches, but they seem insignificant to plant health when only a few are present. Cocklebur Weevils prefer to remain unseen and hide in curled leaves and behind stems and flowers when they perceive they are being watched.



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: Coleoptera
        Family: Curculionidae
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          Genus: Rhodobaenus
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            Species: quinquepunctatus
Identifying Information
Size, Colors, Features
Scientific Name: Rhodobaenus quinquepunctatus
Category: Beetle
Size (Adult; Length): 5mm to 8mm (0.19" to 0.31")
Colorwheel Graphic Colors: red; black
Descriptors: black oval on red back; black dots; bottom half black; flying; sunflower; long nose; snout; long

Cocklebur-Weevil Video(s)




A Cocklebur Weevil runs for cover.
Relative Size Comparison
Typical Range Between 5mm and 8mm
Lo: 5mm
Md: 6.5mm
Hi: 8mm
Territorial Map*
U.S., Canada, and Mexico
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State of Delware graphic
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State of New England graphic
State of New Jersey graphic
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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 Cocklebur Weevil 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 Cocklebur Weevil. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.

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