Systematics of the Short-Tailed Whipscorpion Genus Stenochrus Chamberlin, 1922 (Schizomida: Hubbardiidae), with Descriptions of Six New Genera and Five New Species

Monjaraz-Ruedas, Rodrigo; Prendini, Lorenzo; Francke, Óscar F.

doi:10.1206/0003-0090.435.1.1

Cited by 12 publications

(10 citation statements)

References 83 publications

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“…For piping, the package dplyr (35) was used. The package tidyr (36) was used to organise and re-structure data. Plots and figures were created and enhanced with ggplot2 (37) and ggprism (38).…”

Section: (5) Statistical Analysismentioning

confidence: 99%

A trait-based taxonomic data base for the order Schizomida (Arachnida) with descriptions of a new fossil species from Kachin amber and the female ofSurazomus palenqueVillarreal, Miranda & Giupponi 2016

Müller,

Magnussen,

Gearty

et al. 2024

Preprint

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Despite a global distribution throughout the tropics and sub-tropics, the order Schizomida (Arachnida) is heavily understudied and the phylogeny of the group is poorly understood. Identification keys are only available for some regions or genera but not for the entire order. (1) comprehensively reviewed the entire schizomid fauna and established a suite of characters to define all genera known at this time. This suite of characters still depicts the foundation of modern descriptions, supplemented by recently established characters, most of them documenting setation patterns on pedipalps, flagellum and chelicerae. In this paper, we present the Schizomida Trait Data Base (STDB) containing data for 25 characters based on the entire body of schizomid literature. Characters were chosen based on their use for modern taxonomic description and availability of the data. The STDB is a powerful tool that can be used by both amateurs and experienced researchers to categorise newly found specimens, both extant and fossil, down to genus level easily. Analysis using the new database gives insight into biogeographical patterns of characters. Furthermore, we are describing a new species, †Annazomus jamesi, a fossil specimen from Burmese (Kachin) amber and investigate a small collection of extant schizomids from Ecuador, which includes the previously unrecorded female of Surazomus palenque, herein described for the first time. The taxonomic assignment of both specimens is based on the STDB, highlighting the utility of the new data base approach to schizomid systematics.

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Section: (5) Statistical Analysismentioning

confidence: 99%

A trait-based taxonomic data base for the order Schizomida (Arachnida) with descriptions of a new fossil species from Kachin amber and the female ofSurazomus palenqueVillarreal, Miranda & Giupponi 2016

Müller,

Magnussen,

Gearty

et al. 2024

Preprint

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“…Short-tailed whip scorpions are represented in the cave system by a single species Baalrog magico (Monjaraz-Ruedas and Francke, 2018), which was originally described under the genus Stenochrus Chamberlin, 1922 and then transferred to the newly described genus Baalrog Monjaraz-Ruedas, Prendini and Francke, 2019, which harbors species restricted to the cave environment. Other members of genus Baalrog are distributed in cave systems in Valle Nacional, Oaxaca, and Atoyac, Veracruz [30]. Although there are other undescribed species of schizomids in the Sierra Mazateca outside the caves, those belong to different genera and are apparently not related to the species distributed inside Sistema Huautla [31].…”

Section: Order Schizomidamentioning

confidence: 99%

Biodiversity of the Huautla Cave System, Oaxaca, Mexico

2021

Self Cite

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Sistema Huautla is the deepest cave system in the Americas at 1560 m and the fifth longest in Mexico at 89,000 m, and it is a mostly vertical network of interconnected passages. The surface landscape is rugged, ranging from 3500 to 2500 masl, intersected by streams and deep gorges. There are numerous dolinas, from hundreds to tens of meters in width and depth. The weather is basically temperate subhumid with summer rains. The average yearly rainfall is approximately 2500 mm, with a monthly average of 35 mm for the driest times of the year and up to 500 mm for the wettest month. All these conditions play an important role for achieving the highest terrestrial troglobite diversity in Mexico, containing a total of 35 species, of which 27 are possible troglobites (16 described), including numerous arachnids, millipedes, springtails, silverfish, and a single described species of beetles. With those numbers, Sistema Huautla is one of the richest cave systems in the world.

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“…After that, however, most studies continued with the flagellum-spermathecae-only approach, but including newer technologies, such as digital photographs. SEM images have been used since only in a series of studies (chelicera: [22][23][24][25][26]; chelicera and male flagellum: [27,28]; female flagellum: [24]). Also, Giupponi et al [29] and Villarreal et al [30] published SEM illustrations of the chelicera, pedipalp, male and female flagella and some leg details.…”

Section: Introductionmentioning

confidence: 99%

First description of the male genitalia in a short-tailed whipscorpion (Arachnida: Schizomida), description of the female, and comments on pygidial glands and cuticular ultrastructure of Surazomus algodoal Ruiz & Valente, 2017

Ruiz

Valente

2023

PLoS ONE

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The male genitalia of Surazomus algodoal Ruiz & Valente, 2017 are described. Since this is the first attempt to describe male genitalia in the schizomids, we propose new terminology to describe the sclerites of the male genital chamber in the order. We believe that the male genitalia may provide a large set of characters for taxonomic research in schizomids, as the female genitalia have proven to do. The setae and other cuticular structures were investigated using light and scanning electron microscopy (SEM). The female of S. algodoal is described for the first time, including the genitalia, and we highlight the sexual dimorphism present in the species. We also present descriptions of: 1) microtrichia, with respect to their presence/length/distribution, 2) cuticular sensilla, glandular openings and other cuticular structures, proposing new terminology, 3) setae of the pedipalpal trochanter and tarsus. Some changes on the terminology of setae of pedipalpal tibia are also given. These advances may be useful for description in other schizomids. The pygidial glands, mostly ignored in modern papers, were assessed and commented upon.

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Systematics of the Short-Tailed Whipscorpion Genus Stenochrus Chamberlin, 1922 (Schizomida: Hubbardiidae), with Descriptions of Six New Genera and Five New Species

Cited by 12 publications

References 83 publications

A trait-based taxonomic data base for the order Schizomida (Arachnida) with descriptions of a new fossil species from Kachin amber and the female ofSurazomus palenqueVillarreal, Miranda & Giupponi 2016

A trait-based taxonomic data base for the order Schizomida (Arachnida) with descriptions of a new fossil species from Kachin amber and the female ofSurazomus palenqueVillarreal, Miranda & Giupponi 2016

Biodiversity of the Huautla Cave System, Oaxaca, Mexico

First description of the male genitalia in a short-tailed whipscorpion (Arachnida: Schizomida), description of the female, and comments on pygidial glands and cuticular ultrastructure of Surazomus algodoal Ruiz & Valente, 2017

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