Posts Tagged ‘Vaejovis’


 

mcwestiAbstract:
Two new species of the mexicanus group of Vaejovis C.L. Koch are described from the Madrean pine-oak forests of the Sierra Madre Occidental in the state of Durango, Mexico. These species, Vaejovis sierrae sp. nov. and Vaejovis mcwesti sp. nov., are distinguished from each other and the only other species of the mexicanus group known from this mountain range, Vaejovis montanus Graham and Bryson, by morphometrics, carinal development of the pedipalps, granulation of the metasoma, and body size. A key to the species of the mexicanus group from the Sierra Madre

Reference:
Sissom WD, Graham MR, Donaldson TG, Bryson Jr RW. Two new Vaejovis C.L. Koch 1836 from highlands of the Sierra Madre Occidental, Durango, Mexico (Scorpiones, Vaejovidae). Insecta Mundi. 2016 (0477):1-14. [Open Access]

Abstract

A new species of vaejovid scorpion from northern California, Pseudouroctonus maidu sp. n., is named and described. This new species appears to be most similar to Pseudouroctonus iviei (Gertsch & Soleglad, 1972) and Pseudouroctonus glimmei (Hjelle, 1972).

Keywords

California, Kovarikia, Pseudouroctonus, taxonomy, Vaejovinae

Introduction

Recent fieldwork in northern California has revealed the presence of a previously undescribed species in the vaejovid scorpion genus Pseudouroctonus Stahnke, 1974. To facilitate its inclusion in discussions of ongoing systematic and phylogeographic studies of Pseudouroctonus and its near relatives (Francke and Savary 2006,Bryson et al. 2013, Bryson et al. 2014, and others in preparation), the new species is named and described herein. It represents the third species of Pseudouroctonus in California, all endemic to the state, and only the fourth new species of scorpion to be described from California in the past twenty years.

toxins-08-00002-ag

Abstract

Scorpions are among the oldest terrestrial arthropods, which are distributed worldwide, except for Antarctica and some Pacific islands. Scorpion envenomation represents a public health problem in several parts of the world. Mexico harbors the highest diversity of scorpions in the world, including some of the world’s medically important scorpion species. The systematics and diversity of Mexican scorpion fauna has not been revised in the past decade; and due to recent and exhaustive collection efforts as part of different ongoing major revisionary systematic projects, our understanding of this diversity has changed compared with previous assessments. Given the presence of several medically important scorpion species, the study of their venom in the country is also important. In the present contribution, the diversity of scorpion species in Mexico is revised and updated based on several new systematic contributions; 281 different species are recorded. Commentaries on recent venomic, ecological and behavioral studies of Mexican scorpions are also provided. A list containing the most important peptides identified from 16 different species is included. A graphical representation of the different types of components found in these venoms is also revised. A map with hotspots showing the current knowledge on scorpion distribution and areas explored in Mexico is also provided.

See here at http://www.mdpi.com/2072-6651/8/1/2

 

syntropinae2

Abstract

The first rigorous analysis of the phylogeny of the North American vaejovid scorpion subfamily Syntropinae is presented. The analysis is based on 250 morphological characters and 4221 aligned DNA nucleotides from three mitochondrial and two nuclear gene markers, for 145 terminal taxa, representing 47 species in 11 ingroup genera, and 15 species in eight outgroup genera. The monophyly and composition of Syntropinae and its component genera, as proposed by Soleglad and Fet, are tested. The following taxa are demonstrated to be para- or polyphyletic: Smeringurinae; Syntropinae; Vaejovinae; Stahnkeini; Syntropini; Syntropina; Thorelliina; Hoffmannius; Kochius; and Thorellius. The spinose (hooked or toothed) margin of the distal barb of the sclerotized hemi-mating plug is demonstrated to be a unique, unambiguous synapomorphy for Syntropinae, uniting taxa previously assigned to different subfamilies. Results of the analysis demonstrate a novel phylogenetic relationship for the subfamily, comprising six major clades and 11 genera, justify the establishment of six new genera, and they offer new insights about the systematics and historical biogeography of the subfamily, and the information content of morphological character systems.

Direct Link at http://onlinelibrary.wiley.com/doi/10.1111/cla.12091/abstract.

Thanks to the Scorpion Files posting the news.  Its been a long time coming to see the results from the Scorpion Lab at AMNH.

Summary
A new scorpion species, Vaejovis grayae sp. nov. is described and placed in the “vorhiesi” group of the genus Vaejovis. This small brown species is found near Yarnell, Arizona, USA. It appears most similar to V. trinityae Ayrey and V. crumpi Ayrey et Soleglad. It can be distinguished from the other members of the “vorhiesi” group by aunique combination of non-overlapping morphological characters and multilocus DNA data (Bryson et al., 2013). The pedipalp fixed finger has 6 ID denticles and the movable finger has 7, like most other northern Arizona “vorhiesi” group species. Another characteristic of this species is its unique Arizona chaparral habitat.

grayae

Published at Euscorpius Online Journal:  Occasional papers in scorpiology

PDF:  http://www.science.marshall.edu/fet/euscorpius/p2014_188.pdf

See more with Rich’s web site at AZScorpion.com

 

Genus Kovarikia, gen. nov. (Scorpiones: Vaejovidae) is described from southern California, USA. The genus is composed of three species previously placed in Pseudouroctonus: Kovarikia williamsi (Gertsch et Soleglad, 1972),comb. nov. (type species), K. bogerti (Gertsch et Soleglad, 1972), comb. nov., and K. angelena (Gertsch et Soleglad, 1972), comb. nov. Major diagnostic characters of Kovarikia are its unique neobothriotaxy found on the ventral surface of the pedipalp chelae, the occurrence of a secondary lamellar hook on the hemispermatophore, a crescent-shaped mating plug barb, the presence of a secondary exteromedian (EMc) carina on the pedipalp patella,and a swollen telson vesicle with anterior vesicular ridges. kovarikiaURL link:  http://www.science.marshall.edu/fet/euscorpius/p2014_185.pdf

coalcomanSummary:

Vaejovis coalcoman sp. n. from Sierra de Coalcomán, in the northwestern part of the state of Michoacán, Mexico, is described. It belongs to the “mexicanus” group and it is compared with related species from the states of Jalisco and Guanajuato. A map with the known distribution of the related taxa is provided.

URL and PDF:  http://www.journals.unam.mx/index.php/bio/article/view/37437

 

Summary

A new scorpion species, Vaejovis grahami sp. nov. is described. This small, dark brown species is found in the Santa Rita Mountains, Santa Cruz County, Arizona, USA. It is most similar to V. vorhiesi Stahnke and V. deboerae Ayrey. The pedipalp fixed finger usually has 5 inner denticles (ID) and the movable finger has 6, like in most other southern Arizona Vaejovis.

URL in PDF format:

Euscorpius — Occasional Publications in Scorpiology. 2014, No. 183

http://www.azscorpion.com/V_grah.html

syntropinae

The endemic North American vaejovid scorpion subfamily Syntropinae Kraepelin, 1905, is redefined and its component genera revised, based on a simultaneous phylogenetic analysis of 250 morphological characters and 4221 aligned DNA nucleotides from three mitochondrial and two nuclear gene markers. Tribe Stahnkeini Soleglad and Fet, 2006, is removed from Syntropinae. Tribe Paravaejovini Soleglad and Fet, 2008, and subtribe Thorelliina Soleglad and Fet, 2008, are abolished: Paravaejovini Soleglad and Fet, 2008 = Syntropinae Kraepelin, 1905, syn. nov.; Thorelliina Soleglad and Fet, 2008 = Syntropinae Kraepelin, 1905, syn. nov. Eleven genera, six newly described, are recognized within Syntropinae: Balsateres, gen. nov.; Chihuahuanus, gen. nov.; Kochius Soleglad and Fet, 2008; Konetontli, gen. nov.; Kuarapu Francke and Ponce-Saavedra, 2010; Maaykuyak, gen. nov.; Mesomexovis, gen. nov.; Paravaejovis Williams, 1980; Syntropis Kraepelin, 1900; Thorellius Soleglad and Fet, 2008; Vizcaino, gen. nov. Hoffmannius Soleglad and Fet, 2008, is abolished: Hoffmannius Soleglad and Fet, 2008 = Paravaejovis Williams, 1980, syn. nov. Lissovaejovis Ponce-Saavedra and Beutelspacher, 2001 [nomen nudum] = Paravaejovis Williams, 1980, syn. nov. Ten species, formerly placed in Hoffmannius, are transferred to Paravaejovis: Paravaejovis confusus (Stahnke, 1940), comb. nov.; Paravaejovis diazi (Williams, 1970), comb. nov.; Paravaejovis eusthenura (Wood, 1863), comb. nov.; Paravaejovis flavus (Banks, 1900), comb. nov. [nomen dubium]; Paravaejovis galbus (Williams, 1970), comb. nov.; Paravaejovis gravicaudus (Williams, 1970), comb. nov.; Paravaejovis hoffmanni (Williams, 1970), comb. nov.; Paravaejovis puritanus (Gertsch, 1958), comb. nov.; Paravaejovis spinigerus (Wood, 1863), comb. nov.; Paravaejovis waeringi (Williams, 1970), comb. nov. Paravaejovis schwenkmeyeri (Williams, 1970), comb. nov., is removed from synonymy. Four species, formerly placed in Kochius, are transferred to Chihuahuanus, gen. nov.: Chihuahuanus cazieri (Williams, 1968), comb. nov.; Chihuahuanus crassimanus (Pocock, 1898), comb. nov.; Chihuahuanus kovariki (Soleglad and Fet, 2008), comb. nov.; Chihuahuanus russelli (Williams, 1971), comb. nov. Four species, formerly placed in Kochius, Thorellius, or Vaejovis C.L. Koch, 1836, are transferred to Mesomexovis, gen. nov.: Mesomexovis atenango (Francke and González-Santillán, 2007), comb. nov.; Mesomexovis oaxaca (Santibáñez-López and Sissom, 2010), comb. nov.; Mesomexovis occidentalis (Hoffmann, 1931), comb. nov.; Mesomexovis subcristatus (Pocock, 1898), comb. nov. Mesomexovis variegatus (Pocock, 1898), comb. nov., is reinstated to its original rank as species. Four subspecies are newly elevated to species: Kochius barbatus (Williams, 1971), stat. nov.; Kochius cerralvensis (Williams, 1971), stat. nov.; Kochius villosus (Williams, 1971), stat. nov.; Mesomexovis spadix (Hoffmann, 1931), comb. et stat. nov. Three subspecies are synonymized: Vaejovis diazi transmontanus Williams, 1970 = Paravaejovis diazi (Williams, 1970), syn. nov.; Vaejovis bruneus loretoensis Williams, 1971 = Kochius villosus (Williams, 1971), syn. nov.; Vaejovis hoffmanni fuscus Williams, 1970 = Paravaejovis hoffmanni (Williams, 1970), syn. nov

URL:http://digitallibrary.amnh.org/dspace/handle/2246/6459

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Abstract:

Multivariate analyses of morphological characters provide strong evidence that a highland Vaejovis from the Sierra de los Ajos, a Madrean ‘sky island’ in northern Sonora, Mexico, represents a distinct new species of the V. vorhiesi group. This new species is described and compared to other geographically adjacent species of the V. vorhiesi group, named
V. bandido, and brief notes on ecology are provided. Results from this study provide evidence that multivariate analysis of morphological characters is a powerful tool to delimit small and otherwise cryptic scorpion species.

URL PDF: http://www.americanarachnology.org/JoA_free/JoA_v40_n3/arac-40-3-281.pdf