<i>Mastigoproctus spinifemoratus</i>, a New Species of Giant Vinegaroon (Thelyphonida: Thelyphonidae) from Mexico
2025
Daniel Castro-Pereira | Ricardo Pinto-da-Rocha | Lorenzo Prendini
<i>Mastigoproctus</i> Pocock, 1894, is the most speciose genus in the thelyphonid subfamily Mastigoproctinae Speijer, 1933, with eighteen described species distributed from the Southern United States to Colombia and Venezuela. Ten of these species occur in Mexico. In the present contribution, <i>Mastigoproctus spinifemoratus</i>, sp. nov., is described based on an adult male and two juveniles from Eastern Nuevo León and Southwestern Tamaulipas, Mexico. It differs from five other species of <i>Mastigoproctus</i>, in which spiniform tubercles are present on the retrolateral surface of the pedipalp femur, in the ventrally directed epistome of the carapace, and the absence of an accessory spine on the prodorsal margin of the pedipalp trochanter. The new species raises the number of <i>Mastigoproctus</i> species to nineteen and the number in Mexico to eleven.
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