\u3ci\u3eEuscorpiops neradi\u3c/i\u3e sp. n. from Thailand (Scorpiones: Euscorpiidae: Scorpiopinae)

Euscorpiops neradi sp. n. from Thailand is described and compared with other species of the genus Euscorpiops Vachon, 1980. It is the smallest species of the genus, with total length about 25 mm in both sexes. In E. neradi sp. n. external trichobothria on the patella number 16 (5 eb, 2 esb, 2 em, 3 est, 4 et) and ventral trichobothria on the patella number 6. Pedipalp fingers are flexed in males and straight in females

Scorpions of the Horn of Africa (Arachnida: Scorpiones). Part VI. \u3cem\u3eCompsobuthus\u3c/em\u3e Vachon, 1949 (Buthidae), with a description of \u3cem\u3eC. eritreaensis\u3c/em\u3e sp. n.

All four Compsobuthus species of the Horn of Africa were newly collected, C. werneri firstly collected in Eritrea and C. eritreaensis sp. n. discovered during scorpiological expeditions in 2011–2016. Information is provided about their taxonomy, distribution, and ecology, fully complemented with color photos of live and preserved specimens, as well as their habitat. The hemispermatophore of C. eritreaensis sp. n. is illustrated and described. In addition to morphological analysis, we also describe the karyotype of C. eritreaensis sp. n. (2n=22)

A new scorpion genus, \u3cem\u3eGint\u3c/em\u3e gen. n., from the Horn of Africa (Scorpiones: Buthidae)

A new scorpion genus is described, Gint gen. n., similar to genera Buthacus Birula, 1908 and Neobuthus Hirst, 1911 to which it is compared. Buthus calviceps Pocock, 1900 is transferred to the new genus, which includes only two species, Gint gaitako sp. n. from Ethiopia and Gint calviceps comb. n. from Somaliland and Somalia (Puntland). Information is provided on the localities and habitats of both species. In addition to morphological analysis we described also karyotype of male paratype of Gint gaitako sp. n., 2n=30

Scorpions of the Horn of Africa (Arachnida: Scorpiones). Part VII.\u3cem\u3e Parabuthus\u3c/em\u3e Pocock, 1890 (Buthidae), with description of \u3cem\u3eP. hamar\u3c/em\u3e sp. n. and \u3cem\u3eP. kajibu\u3c/em\u3e sp. n. from Ethiopia

All Parabuthus species from Eritrea, Ethiopia, and Somaliland were newly collected and are revised for the first time. The complex of Parabuthus liosoma is split into three sibling species with separate areas of distribution: P. abyssinicus Pocock, 1901 (Eritrea, Djibouti, central and north-eastern parts of Ethiopia), P. liosoma (Ehrenberg, 1828) (Yemen and Saudi Arabia), and P. maximus Werner, 1913 (Tanzania and Kenya). P. hamar sp. n. and P. kajibu sp. n., discovered during scorpiological expeditions in 2011–2016, are described. Information is provided about all Parabuthus species from the Horn of Africa, their taxonomy, distribution, and ecology, fully complemented with color photos of live and preserved specimens, as well as their habitat. The hemispermatophores of P. abyssinicus and P. kajibu sp. n. are illustrated and described. In addition to the analyses of external morphology and hemispermatophores, we also describe the karyotypes of P. abyssinicus (2n=16), P. kajibu sp. n. (2n=18), and P. pallidus (2n=20). The monotypic genus Riftobuthus Lourenço, Duhem et Cloudsley-Thompson, 2010 is synonymized with Parabuthus, based in part on pectinal tooth count analysis. Phylogenetic scaling and ontogenetic invariance of pectinal tooth count are shown for buthid scorpions

Scorpions of Ethiopia (Arachnida: Scorpiones). Part II. Genus \u3cem\u3eBabycurus\u3c/em\u3e Karsch, 1886 (Buthidae), with description of two new species

Two new species, Babycurus dunlopi sp. n. and B. sofomarensis sp. n. from Ethiopia, are described, compared with other species and fully illustrated with color photos of habitus and localities. B. subpunctatus Borelli, 1925 is recorded for the first time in Ethiopia, Somali Province. All data about the distribution of Babycurus Karsch, 1886 in Ethiopia including photos of all known Ethiopian localities of Babycurus are summarized. B. wituensis taramassoi Borelli, 1919 is raised back to species status as B. taramassoi Borelli, 1919

Scorpions of Ethiopia. Part IV. Genus \u3cem\u3eUroplectes\u3c/em\u3e Peters, 1861(Scorpiones: Buthidae)

All data about the distribution of Uroplectes fischeri (Karsch, 1879) in Ethiopia and Somalia are summarized. U. fischeri is fully illustrated with color photos of habitus and locality. Uroplectoides abyssinicus Lourenço, 1998 is discussed and synonymized with U. fischeri. Genus Uroplectoides Lourenço, 1998 is synonymized with Uroplectes Peters, 1861. Hemispermatophore of U. fischeri was extracted and illustrated for the first time. In addition to morphological analysis we also describe the karyotype of male U. fischeri from Ethiopia (2n=28)

Diversity and distribution of scorpions (Arahnida: Scorpiones)

This thesis is devoted to species diversity and biogeography of Scorpiones order. Bachelor work is presenting basic problems of this area and major split in higher classification of scorpions, which is still not firmly defined. In the work is also provided an overview of the current 15 families, to whom is the scorpions order divided by classification proposed by Soleglad & Fet (2003), including their distribution, the number of families and species they cover. Factors which had or still have an impact on the expansion of scorpions are also discussed. Described factors, which affects the distribution and diversity of scorpions, are: continental drift and Quaternary climate change (historical aspects) and temperature, parthenogenesis and human factor (environmental aspects). These factors influenced the biogeography of scorpions at different taxonomic levels, in different evolution time scale and on differently sized territories

Karyotype evolution of the subgenus Euscorpius (Alpiscorpius) in Alps

High mountain systems are important areas for divergence and speciation. These topographically diverse structures have strongly influenced the evolution of mountain biota. Alps, as the largest European high mountain system, form a major feature in moulding the phylogeography of many species and they are specific in a high number of endemic species. Scorpions are generally well known mainly as inhabitants of arid and semi-arid areas but some of them also contribute an important element of mountain biota in which is the case of subgenus Alpiscorpius within European genus Euscorpius. Three endemic cryptic species have been recognised from Alpine mountain system, these are E.(A.) alpha, E.(A.) germanus and E.(A.) gamma at this moment. They were elevated to species rank about 15 years ago as a result of pilot molecular phylogenetic studies using molecular markers, mitochondrial 16S rDNA and nuclear allozymes. I examined these species from 35 different alpine populations using cytogenetic methods and detected unsuspected great karyotype variability among them. In E. (A.) alpha there was reported occurrence of three distinct karyotypic races (2n=60, 90, 54). Similarly, within species E. (A.) gamma there was found existence of two highly different karyotypic races (2n=58; 88). Interestingly, among..

Diversity and distribution of scorpions (Arahnida: Scorpiones)

This thesis is devoted to species diversity and biogeography of Scorpiones order. Bachelor work is presenting basic problems of this area and major split in higher classification of scorpions, which is still not firmly defined. In the work is also provided an overview of the current 15 families, to whom is the scorpions order divided by classification proposed by Soleglad & Fet (2003), including their distribution, the number of families and species they cover. Factors which had or still have an impact on the expansion of scorpions are also discussed. Described factors, which affects the distribution and diversity of scorpions, are: continental drift and Quaternary climate change (historical aspects) and temperature, parthenogenesis and human factor (environmental aspects). These factors influenced the biogeography of scorpions at different taxonomic levels, in different evolution time scale and on differently sized territories

Diversity and distribution of scorpions (Arahnida: Scorpiones)

Předkládaná bakalářská práce se věnuje otázce druhové rozmanitosti a biogeografii řádu Scorpiones. V rámci tohoto zaměření je nastíněna základní problematika a hlavní rozkol ve vyšší klasifikaci štírů, která v současné době není pevně stanovena a stále doznává určitých změn. V práci je dále uveden přehled současných 15 čeledí, na něž se řád štírů dělí podle klasifikace navržené Solegladem & Fetem (2003), včetně jejich rozšíření, počtu rodů a druhů, které zahrnují. Dále jsou zde diskutovány faktory, které měly nebo stále mají vliv na rozšíření štírů. Mezi faktory ovlivňující rozšíření a diverzitu štírů byly zahrnuty kontinentální drift a čtvrtohorní klimatické změny jakožto aspekty historické, a dále teplota, partenogeneze a lidský faktor jakožto aspekty ekologické. Ty ovlivnily biogeografii štírů na odlišné taxonomické úrovni, v jinak dlouhém časovém evolučním měřítku a na různě velkém území.This thesis is devoted to species diversity and biogeography of Scorpiones order. Bachelor work is presenting basic problems of this area and major split in higher classification of scorpions, which is still not firmly defined. In the work is also provided an overview of the current 15 families, to whom is the scorpions order divided by classification proposed by Soleglad & Fet (2003), including their distribution, the number of families and species they cover. Factors which had or still have an impact on the expansion of scorpions are also discussed. Described factors, which affects the distribution and diversity of scorpions, are: continental drift and Quaternary climate change (historical aspects) and temperature, parthenogenesis and human factor (environmental aspects). These factors influenced the biogeography of scorpions at different taxonomic levels, in different evolution time scale and on differently sized territories.Department of ZoologyKatedra zoologieFaculty of SciencePřírodovědecká fakult