Two New Genera and a New Species of Schizomids (Arachnida: Schizomida) From Isla De Pinos, Cuba

Teruel, Rolando

doi:10.37828/em.2018.19.4

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…Cuba is by far the richest insular territory for schizomids (also called "tailless whipscorpions"), with a nominal fauna of 57 species unequally distributed among 13 genera as follows: Antillostenochrus Armas & Teruel, 2002 (8 species), Cokendolpherius Armas, 2002 (2), Cubacanthozomus Teruel, 2007 (1), Cubazomus Reddell & Cokendolpher, 1995 (3), Dumitrescoella Teruel, 2017 (1), Guanazomus Teruel & Armas, 2002 (1), Heterocubazomus Teruel, 2007 (1), Pinero Teruel, 2018 (1), Reddellzomus Armas, 2002 (1), Rowlandius Reddell & Cokendolpher, 1995 (35), Siguanesiotes Teruel, 2018(1), Stenochrus Chamberlin, 1922 (1), and Troglocubazomus Teruel, 2003 (1). Of these genera, eight are endemic to mainland Cuba (Cokendolpherius, Cubacanthozomus, Cubazomus, Dumitrescoella, Guanazomus, Heterocubazomus, Reddellzomus and Troglocubazomus) and two to Isla de Pinos (Pinero and Siguanesiotes); intriguingly, these two larger islands do not share any genus or species in common.…”

Section: Introductionmentioning

confidence: 99%

Two Remarkable New Species of Hubbardiidae Cook, 1899 (Arachnida: Schizomida) From Eastern Cuba

Teruel¹,

Rodríguez-Cabrera²

2019

Ecol. Mont

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Two new, remarkable species of schizomids are described in the present paper, both from eastern Cuba. One of them is the second known member of Troglocubazomus Teruel, 2003, which allows the redefinition of the generic diagnosis and expands the known range of this genus more than 200 km to the west, but still in the same orographic system (the Sierra Maestra Mountains). The other represents the ninth Cuban member of Antillostenochrus Armas & Teruel, 2002, but the first to be found living here in a desertic habitat (only one Hispaniolan species was previously known to live under the same aridity conditions). As results, the schizomid fauna of Cuba reaches 59 species (58 national endemics), with 39 of them occurring in its eastern region (35 regional endemics).

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Section: Introductionmentioning

confidence: 99%

Two Remarkable New Species of Hubbardiidae Cook, 1899 (Arachnida: Schizomida) From Eastern Cuba

Teruel¹,

Rodríguez-Cabrera²

2019

Ecol. Mont

Self Cite

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World Travelers: Parthenogenesis and Ecological Tolerance Enable Multiple Colonization Events by the Widespread Short-Tailed Whipscorpion, Stenochrus portoricensis (Schizomida: Hubbardiidae)

Monjaraz-Ruedas

Francke

Prendini

2022

Insect Systematics and Diversity

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Whereas morphology remains a powerful tool for the diagnosis and description of short-tailed whip scorpions, or schizomids (Order Schizomida Petrunkevitch, 1945), especially when adults of both sexes are available, the systematics of some schizomid taxa is difficult to resolve due to a lack of characters in these morphologically conserved arachnids. Stenochrus portoricensis Chamberlin, 1922, defined on a single character of the female spermathecae, is the most widespread schizomid in the New World. Numerous records in the Neotropics, from the southern United States to Brazil, throughout the Caribbean, and further afield, including the Galapagos Islands and Europe, raise the question as to whether S. portoricensis is indeed a single widespread species or a complex of multiple species with conserved morphology? The present study uses a multilocus dataset and the broadest geographical sample currently available to address the phylogeography of S. portoricensis with molecular divergence dating and ancestral area reconstruction of all currently known species of Stenochrus Chamberlin, 1922. Analyses recovered S. portoricensis as paraphyletic. Two species previously synonymized are revalidated and transferred to Stenochrus. Population structure analyses recovered the remaining samples of S. portoricensis as a single monophyletic species with low genetic divergence and comprising two subclades. Ancestral area reconstruction suggests a Mesoamerican origin for Stenochrus, which contains a widespread species, recently introduced to multiple localities. Introductions to Europe and the Caribbean occurred from a single clade in the Yucatán Peninsula, Mexico, within which genetic divergence is minimal, confirming the hypothesis of multiple independent introductions with successful colonization facilitated by parthenogenetic reproduction.

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The history of short-tailed whip scorpions: changes in body size and flagellum shape in Schizomida

Belojević,

Mortier,

Oberweiser

et al. 2024

Swiss J Palaeontol

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Representatives of Schizomida, known as short-tailed whip scorpions, are an understudied group within Megoperculata. They are found subterraneanly in tropical and sub-tropical regions. They lack eyes, have superior mobility, and possess a flagellum which is relevant to their mating, but in general little is known about their general biology. Fossil representatives of Schizomida from a variety of time periods are available for study. Using 23 fossil specimens (14 of which are described here for the first time) and 86 extant individuals from the literature, changes in both body size and flagella shape in Schizomida were compared over time. Measurements of prosoma length and leg length were used as a proxy for body size, and a comparative size analysis was carried out. Individuals from the Cretaceous period were found to be significantly smaller than extant individuals, contrary to our expectations. For flagellum shape, images were used to create reconstructions, which were then analysed using an elliptic Fourier analysis followed by a principal component analysis. The morphological diversity of the male flagellum shape was found to have decreased significantly between the Cretaceous and modern fauna. We discuss potential explanations for our findings, although a greater understanding of the general biology of Schizomida is required to properly interpret our results.

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Two New Genera and a New Species of Schizomids (Arachnida: Schizomida) From Isla De Pinos, Cuba

Cited by 3 publications

References 9 publications

Two Remarkable New Species of Hubbardiidae Cook, 1899 (Arachnida: Schizomida) From Eastern Cuba

Two Remarkable New Species of Hubbardiidae Cook, 1899 (Arachnida: Schizomida) From Eastern Cuba

World Travelers: Parthenogenesis and Ecological Tolerance Enable Multiple Colonization Events by the Widespread Short-Tailed Whipscorpion, Stenochrus portoricensis (Schizomida: Hubbardiidae)

The history of short-tailed whip scorpions: changes in body size and flagellum shape in Schizomida

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