Explanation of Names
Greek amblys (αμβλυς)- "dull, blunt" + pyge (πυγη)- "rump"
This refers to the lack of any tail as in some other related arachnids. (AAS
However, all species have small tail segments that functions in molting, so they are actually without a flagellum, not without a tail, so "flagellumless whipscorpion" would be more appropriate.
5 families, 150 species worldwide. (1)(2)(3)
Large, powerful and spiny raptorial pedipalps are used for capturing prey. Unlike scorpions, pseudoscorpions, and whipscorpions the two tarsal segments at the end of the pedipalp do not form an opposable claw or pincer.
Wide prosoma (cephalothorax)
Flattenned overall appearance
First pair of legs are very long and whiplike and function like antennae
Chiefly in the Southern states. Arizona, Texas (Big Bend Region), and Florida.
Under bark, stones, in leaf litter and in caves
Insects and other arthropods (1)
Males construct a spermatophore which the female picks up with her genitalia. The mother broods the eggs in a specialized broodsac firmly attached to the opisthosomal sternites and held in place by clawlike sclerites below the genital operculum. This period lasts three to four months and includes the transformation to postembryo inside the broodsac. The eggs are never exposed to air and is functionally similar to live bearing. After hatching, the first instars climb on to the mother's back and are carried around until the molt to second instar which is approximately ten days. (1)(6)
No venom glands (7)
, and do not sting or bite (1)
. If disturbed, they scuttle sideways (2)
Amblypygi resources page
from the International Society of Arachnology
from the American Arachnological Society