A revision of the species of the pseudoscorpion subgenus &lt;i&gt;Chthonius&lt;/i&gt; (&lt;i&gt;Ephippiochthonius&lt;/i&gt;) (Arachnida, Pseudoscorpiones, Chthoniidae) from Italy and neighbouring areas

Gardini, Giulio

doi:10.11646/zootaxa.3655.1.1

Cited by 23 publications

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“…Chthonius (E.) messapicus, which has been reported from Apilia, Italy, by Gardini (2013), can be separated from C. (E.) negarinae by the presence of 6 setae and 3-4 microsetae on the lateral side of the cheliceral palm, the absence of distinct spinnerets on the movable cheliceral finger, and the position of trichobothria eb, esb, and ist in a straight line.…”

Section: Methodsmentioning

confidence: 95%

“…The position of trichobothrium ist on the fixed chelal finger of C. (E.) negarinae is completely different from the trichobothriotaxy of C. (E.) lucanus. In the species C. (E.) negarinae, the trichobothrium ist is located distinctly distal to trichobothria eb-esb, whereas in C. (E.) lucanus, the trichobothria eb-esb-ist are placed mostly in a straight line or trichobothrium ist is placed slightly distal of eb-esb (Gardini, 2013).…”

Section: Methodsmentioning

confidence: 95%

“…Within the tetrachelatus group, the new species belongs to a group that is characterized by the presence of an isolated distal tooth on the movable cheliceral finger. Gardini (2013) Callaini, 1984, and C. (E.) messapicus Gardini, 2013 in this group, but it is unknown how many other species also possess this suite of characters; thus, most published descriptions lack sufficient details or illustrations.…”

Section: Methodsmentioning

confidence: 99%

“…Chthonius (E.) negarinae differs from C. (E.) gibbus by the presence of 2 pairs of preocular setae [which are lacking in C. (E.) gibbus; see Gardini (2013)] and from C. (E.) lucanus and C. (E.) messapicus by the dentition of both chelal fingers, which extends further basally than in C. (E.) negarinae, and the shape of the chelal hand. Callaini (1984) reported Chthonius (E.) lucanus from Mormanno, Monte Pollino, Calabria, Italy; it is distributed in central and southern Italy.…”

Section: Methodsmentioning

confidence: 99%

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Description of the new species Chthonius (Ephippiochthonius) negarinae sp. nov. (Pseudoscorpiones: Chthoniidae) from Iran

Nassirkhani¹,

Shoushtari²

2015

Turk J Zool

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Section: Methodsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Description of the new species Chthonius (Ephippiochthonius) negarinae sp. nov. (Pseudoscorpiones: Chthoniidae) from Iran

Nassirkhani¹,

Shoushtari²

2015

Turk J Zool

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“…Furthermore, overlaps in species-specific character states complicate the exact identification of many species complexes (compare e.g. Beier 1963, Christophoryová et al 2011, Gardini 2013, 2014). Molecular techniques have further revealed the limitations of traditional morphology-based classification of pseudoscorpions.…”

Section: Introductionmentioning

confidence: 99%

Karyotype diversity of pseudoscorpions of the genus Chthonius (Pseudoscorpiones, Chthoniidae) in the Alps

Kotrbová¹,

Opatová²,

Gardini³

et al. 2016

CCG

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Pseudoscorpions are found in almost all terrestrial habitats. However, their uniform appearance presents a challenge for morphology-based taxonomy, which may underestimate the diversity of this order. We performed cytogenetic analyses on 11 pseudoscorpion species of the genus Chthonius C. L. Koch, 1843 from the Alps, including three subgenera: Chthonius (Chthonius) C. L. Koch, 1843, Chthonius (Ephippiochthonius) Beier, 1930 and Chthonius (Globochthonius) Beier, 1931 inhabiting this region. The results show that the male diploid number of chromosomes ranges from 21–35. The sex chromosome system X0 has been detected in all male specimens. The X sex chromosome is always metacentric and represents the largest chromosome in the nucleus. Achiasmatic meiosis, already known from the family Chthoniidae, was further confirmed in males of Chthonius. C-banding corroborated the localization of constitutive heterochromatin in the centromere region, which corresponds to heteropycnotic knobs on the standard chromosome preparations. Morphological types and size differentiation of chromosomes in the karyotype suggest that the main chromosomal rearrangements in the evolution of Chthonius are centric or tandem fusions resulting in a decrease in the number of chromosomes. Pericentric inversions, inducing the change of acrocentric chromosomes into biarmed chromosomes, could also be expected. Variability in chromosome morphology and number was detected in several species: Chthonius (Chthonius) ischnocheles (Hermann, 1804), Chthonius (Chthonius) raridentatus, Chthonius (Chthonius) rhodochelatus Hadži, 1930, and Chthonius (Chthonius) tenuis L. Koch, 1873. We discuss the intraspecific variability within these species and the potential existence of cryptic species.

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The dark side of pseudoscorpion diversity: The German Barcode of Life campaign reveals high levels of undocumented diversity in European false scorpions

Muster

Spelda

Rulik

et al. 2021

Ecology and Evolution

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DNA barcoding is particularly useful for identification and species delimitation in taxa with conserved morphology. Pseudoscorpions are arachnids with high prevalence of morphological crypsis. Here, we present the first comprehensive DNA barcode library for Central European Pseudoscorpiones, covering 70% of the German pseudoscorpion fauna (35 out of 50 species). For 21 species, we provide the first publicly available COI barcodes, including the rare Anthrenochernes stellae Lohmander, a species protected by the FFH Habitats Directive. The pattern of intraspecific COI variation and interspecific COI variation (i.e., presence of a barcode gap) generally allows application of the DNA barcoding approach, but revision of current taxonomic designations is indicated in several taxa. Sequences of 36 morphospecies were assigned to 74 BINs (barcode index numbers). This unusually high number of intraspecific BINs can be explained by the presence of overlooked cryptic species and by the accelerated substitution rate in the mitochondrial genome of pseudoscorpions, as known from previous studies. Therefore, BINs may not be an appropriate proxy for species numbers in pseudoscorpions, while partitions built with the ASAP algorithm (Assemble Species by Automatic Partitioning) correspond well with putative species. ASAP delineated 51 taxonomic units from our data, an increase of 42% compared with the present taxonomy. The Neobisium carcionoides complex, currently considered a polymorphic species, represents an outstanding example of cryptic diversity: 154 sequences from our dataset were allocated to 23 BINs and 12 ASAP units.

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A revision of the species of the pseudoscorpion subgenus <i>Chthonius</i> (<i>Ephippiochthonius</i>) (Arachnida, Pseudoscorpiones, Chthoniidae) from Italy and neighbouring areas

Abstract: A revision of the species of the pseudoscorpion subgenus Chthonius (Ephippiochthonius) (Arachnida, Pseudoscorpiones, Chthoniidae) from Italy and neighbouring areas (Zootaxa 3655) 151 pp.; 30 cm.

Cited by 23 publications

References 0 publications

Description of the new species Chthonius (Ephippiochthonius) negarinae sp. nov. (Pseudoscorpiones: Chthoniidae) from Iran

Description of the new species Chthonius (Ephippiochthonius) negarinae sp. nov. (Pseudoscorpiones: Chthoniidae) from Iran

Karyotype diversity of pseudoscorpions of the genus Chthonius (Pseudoscorpiones, Chthoniidae) in the Alps

The dark side of pseudoscorpion diversity: The German Barcode of Life campaign reveals high levels of undocumented diversity in European false scorpions

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