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  • Red-Shouldered Bug - (Jadera haematoloma)

    Red-Shouldered Bug - (Jadera haematoloma)

    The bulbous red eyes on the Red-Shouldered Bug, an uncommon feature in insects, generate a curious interest in this otherwise overlooked insect.


    Staff Writer (10/2/2017): The mostly black Red-Shouldered Bug has bright red edges on its pronotum, the 'shoulder' area of the insect. This vivid red is also seen in the large eyes, an unusual color for most insects. The abdomen edges are also red and may or may not be visibly extended from under the wings. Despite the alarm coloration, this insect is not a threat humans. It is also scentless, meaning it won't spray a noxious chemical when disturbed like other similar-looking insects.

    Like many plant bugs, the Red-Shouldered Bug tends to form large congregations around host plants, and even seeks winter shelters inside warm houses and buildings. Because many plants in the Soapberry family are food sources for this type of bug, it is sometimes referred to as a type of Soapberry Bug. They are fond of the sweet sap and fruit from various trees as well and have been seen feeding on figs, plums and cherry trees. Dead insects and food leftovers from humans are also welcome parts of the Red-Shouldered Bug's diet.

    This species can be found on or near host plants during the spring, summer and autumn. In warmer regions, a female can produce two broods a year. They are seen almost year round in California, Florida, Texas and Mexico.

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    Details of the:
    Red-Shouldered Bug


    Category: True Bug
    Common name: Red-Shouldered Bug
    Scientific Name: Jadera haematoloma
    Other Names: Soapberry Bug, Jadera Bug, Goldenrain Tree Bug

    Taxonomy:
      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Insecta
         Order: Hemiptera
          Family: Rhopalidae
           Genus: Jadera
            Species: haematoloma





    Size (Adult, Length): 9mm to 14mm (0.35in to 0.55in)

    Identifying Colors: black, red

    Additional Descriptors: red eyes, shoulders, edges, sides, flying


    North American Reach (Though Not Limited To*): Alabama; Arizona; Arkansas; California; Connecticut; Delaware; Florida; Georgia; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Vermont; Virginia; West Virginia; Wisconsin; New Brunswick; Newfoundland and Labrador; Nova Scotia; Ontario; Prince Edward Island; Quebec; Mexico


    * Keep in mind that an insect's reach is not limited by lines on a map and therefore may appear in areas/regions/states beyond those listed above.





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