Description
Cave crickets have very large hind legs with "drumstick-shaped" femora, and long, slender antennae. The antennae arise closely and next to each other on the head. They are brownish in color and rather humpbacked in appearance, always wingless, and up to two inches/5 cm long in body and 10 cm (4 inches) for the legs. The bodies of baby crickets may appear translucent. As the name implies, cave crickets are commonly found in caves. However, most species live in other cool, damp environments, such as in wells, rotten logs, stumps and hollow trees, and under damp leaves, stones, boards, and logs. Occasionally, they prove to be a nuisance in the basements of homes in suburban areas. Some reach into alpine areas and live close to permanent ice — the Mount Cook "flea" and its relatives in New Zealand.
Their distinctive limbs and antennae serve a double purpose. Typically living in a lightless environment, or active at night, they rely heavily on their sense of touch, which is limited by reach. While they have been known to take up residence in the basements of buildings, many cave crickets live out their entire lives deep inside actual caves. In those habitats, they sometimes face long spans of time with insufficient access to nutrients. Given their limited vision, cave crickets will often jump towards any perceived threat in an attempt to frighten it away. Although they look intimidating, they are completely harmless.
Cave and camel crickets are of little economic importance except as a nuisance in buildings and homes, especially basements. They are usually "accidental invaders" that wander in by mistake from adjacent areas. They generally reproduce indoors, especially in situations that provide continuous dark, moist conditions, such as a basement, shower or laundry area, as well as organic debris to serve as food.
The group known as "sand treaders" are restricted to sand dunes, however, and are adapted to live in this environment. They are active only at night, and spend the day burrowed into the sand, to minimize water loss. In the large sand dunes of California and Utah, they serve as food for scorpions.
Read more about this topic: Cave Wetas
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