Phrynidae
Guides
Paraphrynus
whip spider, tailless whip scorpion
Paraphrynus is a genus of whip spiders (order Amblypygi) in the family Phrynidae, distributed from the southwestern United States through Central America and the Caribbean. Most species are endemic to Mexico. These nocturnal arachnids are characterized by extraordinarily long, sensory front legs (antenniform legs) used for navigation and prey detection, and spiny pedipalps for capturing prey. Research has demonstrated remarkable homing abilities in some species, with individuals navigating back to refuges from distances exceeding 10 meters using primarily olfactory cues detected by their antenniform legs rather than vision.
Phrynus operculatus
tailless whipscorpion
A medium-sized tailless whipscorpion (18–22 mm total length) found across much of Mexico. Distinguished by chestnut coloration with reddish tones on the carapace and pedipalps, four anterior spines on the pedipalp trochanter, and specific female gonopod morphology. The species shows considerable morphological variation across its range, suggesting it may represent a species complex.