A new genus of schizomids (Arachnida: Schizomida: Hubbardiidae) from Mexico, with notes on its systematics
Por:
Monjaraz-Ruedas, Rodrigo, Francke, Oscar F.
Publicada:
1 ene 2017
Resumen:
During the systematic revision of Mayazomus, the third most diverse genus of micro whip-scorpions in North America, we found three species with peculiar morphological variation, which are different from those diagnostic characters for Mayazomus. These species share with Mayazomus the large body size and the unusual development of the male pedipalps; however, these three species share the shape of the female spermathecae with Stenochrus rather than with Mayazomus. Therefore, their phylogenetic placements create a dilemma. Here we perform analyses with morphological evidence, using two different methodologies (Parsimony and Bayesian inference) in order to hypothesize the phylogenetic relationships of the three species mentioned with each other and with respect to other North American and/or Central American genera. The results confirm our initial hypothesis that the species belong to a different genus, Olmeca gen. nov., which is recovered as the sister group of all hubbardiine genera included in these analyses, except for the genus Hubbardia. The results also indicate that despite sharing some morphological similarities, it is distantly related with Mayazomus. Three species are described herein: Olmeca brujo sp. nov., Olmeca cruzlopezi sp. nov., and Olmeca santibanezi sp. nov. Additionally, we provide a hypothesis of the relationships and biogeography of Olmeca gen. nov. with other genera. http://zoobank.org/urn:lsid:zoobank.org:pub:F64CE801-7D82-4827-A5B9-0C0B41F58043. © 2017, © The Trustees of the Natural History Museum, London 2017. All Rights Reserved.
Filiaciones:
Monjaraz-Ruedas, Rodrigo:
Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México
Av. Universidad 3000, C.P. 04510, Coyoacán, Distrito Federal, México
Univ Nacl Autonoma Mexico, Posgrad Ciencias Biol, Ave Univ 3000, Coyoacan 04510, DF, Mexico
Univ Nacl Autonoma Mexico, Inst Biol, Dept Zool, Colecc Nacl Aracnidos, 3er Circuito Exterior S-N Apartado Postal 70-153, Mexico City 04510, DF, Mexico
Francke, Oscar F.:
Av. Universidad 3000, C.P. 04510, Coyoacán, Distrito Federal, México
Univ Nacl Autonoma Mexico, Inst Biol, Dept Zool, Colecc Nacl Aracnidos, 3er Circuito Exterior S-N Apartado Postal 70-153, Mexico City 04510, DF, Mexico
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