A new species ofProtoschizomus(Schizomida: Protoschizomidae) from a cave in Guerrero, Mexico

Abstract

A new species of the genus Protosduzomus Rowland 1975 is described with adult males and females. We collected Proloschizomu.s frcmckei new species from Cueva del Diablo in the state of Guerrero, Mexico. Currently, the genus Protoschizonnis is composed of eight species including the new species described here, of which five have been found inside caves.

New Proposal of Setal Homology in Schizomida and Revision of Surazomus (Hubbardiidae) from Ecuador

“…In Protoschizomidae, the first detailed description of the cheliceral setae was published by Cokendolpher and Reddell [ 13 ]. Besides that, some figures of other Protoschizomidae are available in the literature [ 13 , 16 , 28 ], and on the Internet ( Agastoschizomus lucifer ; [ 30 ]). The two schizomid families show clear differences in number and position of the setae; for example, Protoschizomidae have fewer teeth on the fixed finger, serrula with rounded knobs, and setae G5A (the cheliceral brush of Cokendolpher and Reddell [ 13 ]), absent (in general, Protoschizomidae have less setae on the chelicerae than its sister group, the Hubbardiidae ( Fig 2 )).…”

“…The nomenclature of pedipalps, legs and spermathecae follows Reddell and Cokendolpher [ 3 ]; the nomenclature for flagellum setation follows Harvey [ 20 ], modified by Cokendolpher and Reddell [ 13 ], Villarreal, Armas and García [ 18 ] and Moreno-González, Delgado-Santa and Armas [ 27 ]; the nomenclature of cheliceral setae is based on Lawrence [ 8 ]; the chelicerae of Protoschizomidae were analyzed based on figures in the literature [ 13 , 16 , 28 ], and some unpublished SEM images of Agastoschizomus lucifer Rowland, 1971 [ 29 ], accessible in Morphbank [ 30 ]. Tables 1 and 2 summarize which species had specimens analyzed under the microscope and which had details extracted from the literature.…”

“… (A) Protoschizomidae: Protoschizomus franckei (based in Monjaraz-Ruedas [ 16 ]: Figure 10). (B) Hubbardiidae: Wuayuuzomus gonzalezspongai (MZSP 52001).…”

“…Cokendolpher and Reddell [ 13 ] were the first to use Lawrence chaetotaxy in Protoschizomidae, counting five groups in the chelicerae of Agastoschizomus huitzmolotitlensis Rowland, 1975 (they considered G5 absent in this family) [ 19 ]. Another work that recorded the cheliceral setae in Protoschizomidae was Monjaraz-Ruedas [ 16 ], who counted six setal groups (the same number as Hubbardiidae) in a species of the genus Protoschizomus Rowland, 1975. However, the homology of these setae between the living families, and the variation of the setae among Schizomida genera have never been analyzed and discussed.…”

Three new species of Agastoschizomus (Arachnida: Schizomida: Protoschizomidae) from North America

“…The family Protoschizomidae Rowland, 1975 is endemic to Mexico and is currently known by 13 species divided into 2 genera, Protoschizomus Rowland, 1975 with 8 species and Agastoschizomus Rowland, 1971 with 5 species (Cokendolpher & Reddell, 1992;Monjaraz-Ruedas, 2013). Agastoschizomus is characterized primarily by the larger body size (7-12.40 mm), http://dx.doi.org/10.1016/j.rmb.2016.02.006 1870-3453/All Rights Reserved © 2016 Universidad Nacional Autónoma de México, Instituto de Biología.…”