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  2. Arachnid - Wikipedia

    en.wikipedia.org/wiki/Arachnid

    Basic characteristics of arachnids include four pairs of legs (1) and a body divided into two tagmata: the cephalothorax (2) and the abdomen (3) Almost all adult arachnids have eight legs, unlike adult insects which all have six legs. However, arachnids also have two further pairs of appendages that have become adapted for feeding, defense, and ...

  3. Spider anatomy - Wikipedia

    en.wikipedia.org/wiki/Spider_anatomy

    Basic characteristics of arachnids include four pairs of legs (1) and a body divided into two segments: the cephalothorax (2) and the abdomen (3). The ventral side of a brown widow spider . The epigastric plates and furrow are visible, as well as the hourglass marking on the underside of the abdomen, which is a characteristic feature of widow ...

  4. Spider - Wikipedia

    en.wikipedia.org/wiki/Spider

    Spiders (order Araneae) are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, [2] and spinnerets that extrude silk. [3] They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms.

  5. Summer pests: Here's 17 insects, arachnids you should be ...

    www.aol.com/news/summer-pests-heres-17-insects...

    Here's a guide to insects and arachnids thriving in the summer rain and heat. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in ...

  6. Opisthosoma - Wikipedia

    en.wikipedia.org/wiki/Opisthosoma

    It is a distinctive feature of the subphylum Chelicerata (arachnids, horseshoe crabs and others). Although it is similar in most respects to an abdomen (and is often referred to as such), the opisthosoma is differentiated by its inclusion of the respiratory organs ( book lungs or book gills ) and the heart .

  7. Tick - Wikipedia

    en.wikipedia.org/wiki/Tick

    Whether the two groups are more closely related to each other than to other arachnids is uncertain, and studies often recover them as not closely related. [3] Within the Parasitiformes, ticks are most closely related to the Holothyrida , a small group of free living scavengers with 32 described species confined to the landmasses that formed the ...

  8. A new tarantula species is discovered in Arizona: What to ...

    www.aol.com/tarantula-species-discovered-arizona...

    Scientists have found a new species of tarantula, a red-reared arachnid, in Arizona, and the discovery was "rather unexpected." “We often hear about new species being discovered from remote ...

  9. Trombidiidae - Wikipedia

    en.wikipedia.org/wiki/Trombidiidae

    Trombidiidae, also known as red velvet mites, true velvet mites, [2] or rain bugs, are small arachnids (eight-legged arthropods) found in plant litter and are known for their bright red color. While adults are typically no more than 4 mm (0.16 in) in length, some species can grow larger and the largest, including the African Dinothrombium ...