Also found in: Dictionary, Thesaurus, Wikipedia.
Related to Uropygi: whip scorpion
(also Telyphones, Holopeltidia), an order of relatively large flagellate arachnids measuring approximately 7 cm in length. The thorax and head are grown together, and the abdomen ends in a long segmented tail-like limbo. Uropygi, distributed mainly in the tropics, are nocturnal insectivorous predators. They are harmless to man. One species, Typopeltis amurensis, is found in the USSR, in forests of Ussuri Krai.