Arrow-shaped Micrathena Spider

This morning I found this very tiny, colorful spider in an intricate orb web among the leaves of a holly bush at one corner of our house. With its vibrant colors it sparkled in the sun, showing up well, even though it’s only about .3 inch long. 

Arrow-shaped Micrathena spiders (Micrathena sagittata) are common in eastern North America and Central America, usually found in wooded places, often close to the ground. Instead of being round, the abdomen is triangular in shape, like the head of an arrow, and sharp spines stick out from its edges. Two large, fierce-looking, black and red points extend from the rear of the abdomen and point away from each other. The spines may serve to deter predators. Micrathena spiders are also called Spiny Orbweavers.

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