pseudoscorpian or false scorpion is a tiny arachnid that lives under
soil, leaf litter, logs, and rocks on the forest floor. Although
people don't see them very often, scientists know of over 2,000
species that live throughout the world. They are usually very small,
about 0.04 to .025 inches long. They have two main body parts. Their
abdomens are oval shaped with many ridges running across it. Their
cephalothorax, which is a fancy way of saying head and chest, is
covered with a hard shell called a carapace.
spiders, pseudoscorpians have eight walking legs. They also have
two arms in the front called pedipalps with claws on the ends that
help the pseudoscorpian eat and grasp things. These pinchers have
small poison glands that they use to paralyze their prey so they
can catch and eat them. Unlike real scorpions, they do not have
a tail with a stinger on it, but people think the claws make them
Pseudoscorpians are predators that feed on small insects and arthropods.
Besides living in leaf litter and rotting logs, they sometimes can
be found in nests of birds and rodents where they eat insects that
gather there. Occasionally, they ride on large beetles and insects
and eat mites that live there. They are also known to build nests
out of silk to protect them during winter or during molting.
The pseudoscorpian reproduces by producing eggs
in sac attached to the female. These sacs hold between 30 and 50
eggs, but not all usually survive. The young molt or shed their
skin three times before becoming adults. They can live for up to
five years. They are harmless to humans and animals.
To find out more about pseudoscorpians, check out
the following links:
Everything About: http://www.everythingabout.net/articles/biology/animals/arthropods/
Texas Agriculture Extension:
Ecosystems of the Upper Peninsula