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Mastigoproctus tohono, also known as the Tohono whipscorpion or Tohono vinegaroon, is a species of whip scorpions in the family Uropygi.Its native range is from northern Sonora in Mexico to southern Arizona and western New Mexico, with most sightings occurring in the Chiricahua and Huachuca Mountains of Cochise County, Arizona.
Uropygi is an arachnid order comprising invertebrates commonly known as whip scorpions or vinegaroons (also spelled vinegarroons and vinegarones). They are often called uropygids . The name "whip scorpion" refers to their resemblance to true scorpions and possession of a whiplike tail, and "vinegaroon" refers to their ability when attacked to ...
Green-shaded pedipalps in an illustrated dorsal view of a whip scorpion. Pedipalps (commonly shortened to palps or palpi) are the secondary pair of forward appendages among chelicerates – a group of arthropods including spiders, scorpions, horseshoe crabs, and sea spiders.
Mastigoproctus giganteus female with egg sac Pet male whip scorpion. Mastigoproctus giganteus is the only species of family Thelyphonidae that occurs in the United States, [7] where it is found in Arizona, Florida, New Mexico, Oklahoma, and Texas. [8] Vinegaroons are efficient predators of scorpions and are sometimes acquired for that purpose. [9]
Male Huishui dwarf spiders have unique genitalia, known as pedipalps, the study said. Pedipalps are the shorter front appendages that function both as sensory organs and reproductive organs.
Mastigoproctus colombianus range from 45 to 65 millimetres (1.8 to 2.6 in) in length. Color brown and red-end legs. Like the related orders Schizomida, Amblypygi and Solifugae, uropygids use only six legs for walking, having modified their first two legs to serve as antennae-like sensory organs.
It excavates a vertical burrow around 18 cm (7 in) long, generally located at the base of a tuft of grass or among multiple tufts. The scorpion takes 2–3 nights to complete this, using its pincers to loosen the ground and then pedipalps and pincers as spades to carry the soil away. [4] It eats dung beetles, which fall into its burrow. [4]
The pedipalps are also more bulbous and short on males compared to females which help for gripping their mating partner. [2] The mating ritual/dance between scorpions is called the promenade à deux (walk for two). [9] It begins with the male grasping the females pedipalps and circle each other for a few minutes.