- Amblypygi (Amblypygida)
Common names: whip spiders, tail-less whip scorpions, amblypygids
Probability of encounter: low
Quarantine importance: no known importance. Whip spiders may look fierce, but are not venomous and do not appear to have the potential for outbreaks. Some species are used in the pet trade and some may have small, threatened populations.
Similarity to mites: much larger than mites and with clear opisthosomal segmentation. More likely to be confused with spiders.
Body tagmata: prosoma, opisthosoma
Eyes: 3 + 2 + 3 arrangement of ocelli
Antennae: absent
Mouthparts: 2-segmented fang-like chelicerae; robust, spiny-raptorial palps
Legs: 4 pairs; legs I antenniform
Distinguishing features: segmented opisthosoma, stabbing chelicerae, 'tail' absent, pedicel (waist), whip-like legs I with subdivided tarsi