While visiting Carter Caves, Kentucky I frequently encounter this creature in the caverns. This species is found mainly in caves in the eastern United States and southeastern Canada. Spiders are adaptable creatures and man-made habitats such as cellars can also serve as habitat for these eight-legged beings.

Cave Orb Weavers belong to the family Tetragnathidae – commonly called Long-jawed Orb Weavers – but they lack the huge, serrated jaws and elongated bodies and legs that characterize their nearest relatives. As with many spiders, the males this species are considerably smaller than the females.

Life in a cave has some obvious and distinct differences from the environment surrounding it, such as constant darkness, cool temperatures and limited resources. One way the Cave Orb Weavers deal with this is to build their webs by the lights installed in the cave systems. This attracts insects, provides light and creates warmth.

Rather than residing in the dark depths of caves, Cave Orb Weavers tend to build their webs in near the entrances and in the “twilight zones” of caves. They often sit on the edge of their web, rather than resting in the center. Cave life is a poorly studied topic, and there is still much to learn about these mysterious arachnids.

Third Eye Herp
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