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  2. Dolomedes scriptus - Wikipedia

    en.wikipedia.org/wiki/Dolomedes_scriptus

    Dolomedes scriptus is a fishing spider found in the United States and Canada, [1] known as the striped fishing spider. [2] Female spiders can grow to be over 6 cm in legspan. The spider is a pale brown colour with lighter stripes around its legs and a stripe down each side of the body. It is similar to D. tenebrosus.

  3. Herennia multipuncta - Wikipedia

    en.wikipedia.org/wiki/Herennia_multipuncta

    Herennia multipuncta, commonly known as the spotted coin spider, [1] is a species of spider in the family Nephilidae native to Asia. [2] It exhibits sexual dimorphism , the female being much larger than the male.

  4. Spider taxonomy - Wikipedia

    en.wikipedia.org/wiki/Spider_taxonomy

    Paintings of Araneus angulatus from Svenska Spindlar of 1757, the first major work on spider taxonomy. Spider taxonomy is the part of taxonomy that is concerned with the science of naming, defining and classifying all spiders, members of the Araneae order of the arthropod class Arachnida, which has more than 48,500 described species. [1]

  5. Spider - Wikipedia

    en.wikipedia.org/wiki/Spider

    In these species the female appears to be able to activate the dormant sperm before oviposition, allowing them to migrate to the ovarian cavity where fertilization occurs. [45] [46] [47] The only known example of direct fertilization between male and female is an Israeli spider, Harpactea sadistica, which has evolved traumatic insemination. In ...

  6. Platycryptus undatus - Wikipedia

    en.wikipedia.org/wiki/Platycryptus_undatus

    Females of this species are between 10 and 13 mm in body length, and males range from 8.5 to 9.5 mm. [1] It favors vertical surfaces such as fences, walls, etc. and because of its habits it is easily seen. These spiders are not inclined to bite, but even though they are rather small they can deliver a defensive bite if they are pinched or squeezed.

  7. Which Pennsylvania spiders are dangerous to humans? How ... - AOL

    www.aol.com/news/pennsylvania-spiders-dangerous...

    While roughly 3,000 species of spiders are found throughout the U.S., very few pose a direct threat to humans. ... Black widow bites come primarily from adult female spiders, and especially those ...

  8. Epigyne - Wikipedia

    en.wikipedia.org/wiki/Epigyne

    The epigyne or epigynum is the external genital structure of female spiders.As the epigyne varies greatly in form in different species, even in closely related ones, it often provides the most distinctive characteristic for recognizing species.

  9. Spider anatomy - Wikipedia

    en.wikipedia.org/wiki/Spider_anatomy

    Most spiders possess venom, which is injected into prey (or defensively, when the spider feels threatened) through the fangs of the chelicerae. Male spiders have specialized pedipalps that are used to transfer sperm to the female during mating. Many species of spiders exhibit a great deal of sexual dimorphism. [1]