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  • Giant Stonefly - (Pteronarcys species)

    Giant Stonefly - (Pteronarcys species)

    The Giant Stonefly is a sensitive and useful insect for anglers and biologists alike.

    Staff Writer (8/1/2017): Giant Stoneflies are a narrow-bodied insect that are identifiable by their highly veined wings. These wings are very long and crossover the body when folded at rest, covering the Stonefly's whole body and even extending out over them. Giant Stoneflies also have long, thin antennae near their eyes. Their eyes are found on either side of the head. Bodies may appear to be black, brown or gray. A orange or red color may appear on the thorax ('neck').

    Larvae are hatched in water where they spend their early phases of their lives. The naiads (juveniles) of Giant Stoneflies are incredibly sensitive to pollution and die off quickly in unclean waters. Biologists and fishermen and women use the presence of Giant Stoneflies as a mark, or indicator, of how clean the water is in that area.

    Stoneflies are nocturnal creatures and generally live in areas near freshwater streams or rivers. Only the nymphs eat and they prefer to feed on algae and other plant material underwater. Adults do not eat at all.

    Stoneflies, in general, can be attracted to artificial light in the late spring and early summer times of the year.

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    Details of the:
    Giant Stonefly

    Category: Stonefly
    Common name: Giant Stonefly
    Scientific Name: Pteronarcys species
    Other Names: Salmonfly

      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Insecta
         Order: Plecoptera
          Family: Pteronarcidae
           Genus: Pteronarcys
            Species: species

    Size (Adult, Length): 40mm to 84mm (1.57in to 3.31in)

    Identifying Colors: black; brown; gray

    Additional Descriptors: veins, flying, helpful

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