[Arthropods of the Pacific Northwest]

Arachnids of the Pacific Northwest

Black and Yellow Garden Spider: Argiope aurantia
Black and Yellow Garden Spider: Argiope aurantia

Arachnids are characterized by 4 pairs of jointed legs and a body divided into 2 major sebments. Antennae are lacking from the head and none possess wings. Examples of arachnids found in the Pacific Northwest include spiders, harvestmen ("daddy long legs"), scorpions, mites, and ticks.

Spiders are the most visible arachnids in the northwest. Spiders typically bite their prey with their long fangs, then inject a poison which subdues the victim and also starts the digestion of the victim from within. The spider then places its mouth on the victim and consumes the liquid contents.


Cross Orbweaver, Cross Spider, Crowned Orbweaver, Diadem Spider, European Garden Spider, Orangie: Araneus diadematus

Black and Yellow Argiope, Black and Yellow Garden Spider, Golden Garden Spider, Writing Spider, Yellow Garden Spider, Zigzag Spider, Zipper Spider: Argiope aurantia


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