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Articles 961 - 990 of 1028
Full-Text Articles in Evolution
Five New Species Of Chaerilus Simon, 1877 From China, Indonesia, Malaysia, Philippines, Thailand, And Vietnam (Scorpiones: Chaerilidae), František Kovařík
Five New Species Of Chaerilus Simon, 1877 From China, Indonesia, Malaysia, Philippines, Thailand, And Vietnam (Scorpiones: Chaerilidae), František Kovařík
Euscorpius
Chaerilus cimrmani sp. n. from Thailand, C. seiteri sp. n. from Philippines (Negros Island), C. solegladi sp. n. from Indonesia and Malaysia (Borneo Island), C. terueli sp. n. from Vietnam (Côn Son Island), and C. wrzecionkoi sp. n. from China (Tibet) are described. A key to all species of the genus Chaerilus Simon, 1877 is also presented.
Three New Species Of Compsobuthus Vachon, 1949 From Yemen, Jordan, Israel, And Somaliland (Scorpiones: Buthidae), František Kovařík
Three New Species Of Compsobuthus Vachon, 1949 From Yemen, Jordan, Israel, And Somaliland (Scorpiones: Buthidae), František Kovařík
Euscorpius
Compsobuthus krali sp. n. of the werneri group from Yemen, C. levyi sp. n. of the werneri group from Jordan and Israel, and C. somalilandus sp. n. of the acutecarinatus group from Somaliland are described. A key to all species of the genus Compsobuthus Vachon, 1949 is presented.
Winter Microhabitat Foraging Preferences Of Sympatric Boreal And Black-Capped Chickadees In Michigan's Upper Peninsula, Alec R. Lindsay Ph. D., Zach G. Gayk
Winter Microhabitat Foraging Preferences Of Sympatric Boreal And Black-Capped Chickadees In Michigan's Upper Peninsula, Alec R. Lindsay Ph. D., Zach G. Gayk
Faculty Works
We examined differences in microhab- itat use between Boreal (Poecile hudsonicus) and Black- capped chickadees (P. atricapillus) where they co-occur near Marquette, Michigan, USA. Twenty-four Boreal and 37 Black-capped chickadees were followed during 60 hrs of field observation. Boreal Chickadees foraged only in three conifer species, 76% of which were black spruce (Picea mariana), while Black-capped Chickadees foraged widely across six coniferous and three deciduous tree species. Analysis of foraging data categorized by zones within conifer trees indicated high niche overlap (0.676) between Boreal and Black-capped chickadees across all foraging zones. Individual comparisons on a zone-by-zone basis revealed a significant …
Euscorpius Sicanus (Scorpiones: Euscorpiidae) From Tunisia: Dna Barcoding Confirms Ancient Disjunctions Across The Mediterranean Sea, Matthew R. Graham, Pavel Stoev, Nesrine Akkari, Gergin Blagoev, Victor Fet
Euscorpius Sicanus (Scorpiones: Euscorpiidae) From Tunisia: Dna Barcoding Confirms Ancient Disjunctions Across The Mediterranean Sea, Matthew R. Graham, Pavel Stoev, Nesrine Akkari, Gergin Blagoev, Victor Fet
Biological Sciences Faculty Research
We used a DNA barcoding marker (mitochondrial cox1) to investigate the controversial natural occurrence of Euscorpius sicanus (C.L. Koch) in North Africa. We tested this hypothesis by comparing a sample collected from a mountain in Tunisia to disjunct populations in Sardinia, Malta, and Greece. Using these samples, and a few additional Euscorpius spp. from southern Europe as outgroups, we reconstructed the maternal phylogeny. We then used a molecular clock to place the phylogeny in a temporal context. The Tunisian sample grouped closest to a specimen from Sardinia, with both being more distantly related to E. sicanus from Malta, which is …
A Genetic Survey Of English Sole Populations In The Salish Sea, Elizabeth S. Gutierrez, Gary A. Winans, Jon Baker, Amanda Cope
A Genetic Survey Of English Sole Populations In The Salish Sea, Elizabeth S. Gutierrez, Gary A. Winans, Jon Baker, Amanda Cope
STAR Program Research Presentations
This summer I interned at the Northwest Fisheries Science Center in Seattle, WA and participated in NOAA’s Salish Sea Project. The Salish Sea Project’s goal is to identify genetically distinctive groups of species in the Salish Sea that may have unique evolutionary and/or adaptive backgrounds. These findings will allow NOAA to promote and monitor the natural production of species in the Salish Sea, to select representative populations for experimental work regarding pollution, ocean acidification and climate change, to contribute to managing the ecosystem for intra- and inter-species diversity, and to help make informed decisions about adaptive management and marine protected …
Developing Monitoring Methods For Leptasterias Spp. As Sentinel Species In Detecting Local Environmental Changes, Zachary Sturbaum, Kathryn Nuessly, Riley J. Smith, C. Sarah Cohen
Developing Monitoring Methods For Leptasterias Spp. As Sentinel Species In Detecting Local Environmental Changes, Zachary Sturbaum, Kathryn Nuessly, Riley J. Smith, C. Sarah Cohen
STAR Program Research Presentations
Leptasterias spp., a six-rayed sea star, is found in rocky intertidal habitats ranging from Alaska to central California. Leptasterias spp. can be monitored on a broad scale throughout their range by a variety of means using timed counts and random plot censusing in order to detect both large-scale and local-level changes in the environment due to climate change, land-based human activity, or other environmental events. Leptasterias brood their young externally until the embryos grow into fully developed juveniles. These juveniles disperse by crawling away, limiting their dispersal potential. This localized dispersal provides an opportunity to use Leptasterias spp …
Salinity Preference Of Alaskan Threespine Stickleback: Test For Divergence In Halotaxis Between Ancestral And Landlocked Populations, David Fryxell, Eric T. Schultz
Salinity Preference Of Alaskan Threespine Stickleback: Test For Divergence In Halotaxis Between Ancestral And Landlocked Populations, David Fryxell, Eric T. Schultz
EEB Articles
Glacial retreat during the Pleistocene caused landlocking of anadromous Alaskan threespine stickleback, Gasterosteus aculeatus, furnishing a natural ‘experiment’ in osmoregulatory divergence. The objective of this study was to assess the effects of individual acclimation and population divergence on salinity preference. Full-sibling families of marine, anadromous, and freshwater-landlocked populations of stickleback were reared in common environments until 3 weeks post-hatch, then were split and acclimated to low or high salinity. At 6 to 8 weeks of age the six experimental groups were tested for salinity preference in a tank that offers fish a choice of compartments with different salinities arranged …
Systematics Of Leptopelis (Anura: Arthroleptidae) From The Itombwe Plateau, Eastern Democratic Republic Of The Congo, Francisco Portillo
Systematics Of Leptopelis (Anura: Arthroleptidae) From The Itombwe Plateau, Eastern Democratic Republic Of The Congo, Francisco Portillo
Open Access Theses & Dissertations
Leptopelis, a genus of Central African treefrogs, includes 51 species that live in tropical forests and savannas. Currently, only two species of Leptopelis are known from the poorly explored Itombwe Plateau in eastern Democratic Republic of the Congo (DRC). Itombwe is renowned among conservationists for its rich and endemic amphibian fauna, including: Xenopus itombwensis, Chrysobatrachus cupreonitens, Laurentophryne parkeri, Hyperolius leleupi and at least three species of Arthroleptis. Evolutionary relationships of Itombwe Leptopelis were examined by sequencing two mitochondrial genes (16S: 557 bp [base pairs], cyt b: 620 bp) and one nuclear gene (RAG1: 761 bp). Results recovered strong support for …
A New Locality Of Mesobuthus Eupeus Thersites (C. L. Koch, 1839) (Scorpiones: Buthidae) In East Kazakhstan, Alexander A. Fomichev
A New Locality Of Mesobuthus Eupeus Thersites (C. L. Koch, 1839) (Scorpiones: Buthidae) In East Kazakhstan, Alexander A. Fomichev
Euscorpius
A new locality of Mesobuthus eupeus thersites (C. L. Koch, 1839) is reported, found during the fieldtrip to East Kazakhstan, one of the most northern areas where scorpions are found in Asia. Notes on the habitats, map and photographs of specimens are given.
On Centruroides Margaritatus (Gervais, 1841) And Closely Related Species (Scorpiones: Buthidae), Luis F. De Armas, Rolando Teruel, František Kovařík
On Centruroides Margaritatus (Gervais, 1841) And Closely Related Species (Scorpiones: Buthidae), Luis F. De Armas, Rolando Teruel, František Kovařík
Euscorpius
Centruroides edwardsii (Gervais, 1843) comb. nov. is restored as a valid species, and a male neotype from Riohacha, La Guajira Department, Colombia is herein designated; this species ranges from Mexico through Colombia, but there are no reliable records from Guatemala, Belize, and Panama; introduced populations also occur in Cuba (West Indies) and Senegal (Africa). We regard the following species as its junior synonyms: Scorpio (Atreus) degeerii Gervais, 1844, Centrurus gambiensis Karsch, 1879, Centruroides margaritatus septentrionalis Hoffmann, 1932, and Rhopalurus danieli Prado et Rios-Patiño, 1940. We also consider Centruroides margaritatus morenoi Mello-Leitão, 1945 as a junior synonym of …
A Checklist Of The Scorpions (Arachnida: Scorpiones) Of Panama, With Two New Records, Rolando Teruel, Michiel A.C. Cozijn
A Checklist Of The Scorpions (Arachnida: Scorpiones) Of Panama, With Two New Records, Rolando Teruel, Michiel A.C. Cozijn
Euscorpius
In the present note, we compile a checklist of all scorpion species recorded from Panama. A total of three families, five genera and 14 species are confirmed to occur in the country, and previous records of two other families, four genera, and nine species are discarded as misidentifications, mislabelings, or accidental introductions. Two Buthidae species are herein recorded for the first time from Panama: Tityus tayrona Lourenço, 1991 (so far known only from northern Colombia) and one apparently undescribed species of Ananteris Thorell, 1891.
Scorpions Of Iran (Arachnida: Scorpiones). Part Vii. Kerman Province, Shahrokh Navidpour, Majeed Ezatkhah, František Kovařík, Michael E. Soleglad, Victor Fet
Scorpions Of Iran (Arachnida: Scorpiones). Part Vii. Kerman Province, Shahrokh Navidpour, Majeed Ezatkhah, František Kovařík, Michael E. Soleglad, Victor Fet
Euscorpius
Thirteen species of scorpions belonging to two families are reported from the Kerman Province of Iran. Of these, the species Compsobuthus kaftani Kovařík, 2003, Mesobuthus macmahoni (Pocock, 1900), Orthochirus farzanpayi (Vachon et Farzanpay, 1987), Polisius persicus Fet, Capes et Sissom, 2001, Sassanidotus gracilis (Birula, 1900), and Hemiscorpius lepturus Peters, 1861 are recorded from the province for the first time. Kerman Province contains type localities of six species of scorpions, of which Kraepelinia palpator (Birula, 1903) and Orthochirus gruberi Kovařík et Fet, 2006 are valid. Prionurus crassicauda orientalis Birula, 1900 is a synonym of Androctonus crassicauda (Olivier, 1807), Buthus eupeus kirmanensis …
An Anomaly Of Pectinal Organs In Vaejovis Lapidicola (Scorpiones: Vaejovidae), Richard F. Ayrey
An Anomaly Of Pectinal Organs In Vaejovis Lapidicola (Scorpiones: Vaejovidae), Richard F. Ayrey
Euscorpius
Among specimens of Vaejovis lapidicola Stahnke, one female was found to have abnormally shaped pectines, both with only distal pectinal teeth. This rare, possibly teratological anomaly is documented and discussed.
A Review Of The Subgenus Pandinus Thorell, 1876 With Descriptions Of Two New Species From Uganda And Ethiopia (Scorpiones: Scorpionidae), František Kovařík
A Review Of The Subgenus Pandinus Thorell, 1876 With Descriptions Of Two New Species From Uganda And Ethiopia (Scorpiones: Scorpionidae), František Kovařík
Euscorpius
Pandinus (Pandinus) ugandaensis sp. n. from Uganda and P. (P.) mazuchi sp. n. from Ethiopia are described and compared with other species of the subgenus. P. ugandaensis sp. n. is characterized by 3-4/3: 3-4/3: 4/3: 4/3 spiniform formula of tarsomere II and only two spines on the inclined anteroventral surface of tarsomere II; eight ventral trichobothria on the chela; 10–11 pectinal teeth in females and 13–14 in males; and 1.6–1.7 length to depth ratio of the fourth metasomal segment. P. (P.) mazuchi sp. n. is characterized by 7/4: 6-7/4: 6-7/5-6: 8/5 spiniform formula of tarsomere II and only …
Redescription Of Centruroides Granosus (Thorell, 1876) And Identity Of Centrurus Granosus Simplex Thorell, 1876 (Scorpiones: Buthidae), Luis F. De Armas, Rolando Teruel, František Kovařík
Redescription Of Centruroides Granosus (Thorell, 1876) And Identity Of Centrurus Granosus Simplex Thorell, 1876 (Scorpiones: Buthidae), Luis F. De Armas, Rolando Teruel, František Kovařík
Euscorpius
Centruroides granosus (Thorell, 1876) is redescribed based on several specimens of both sexes from Panama. We demonstrate that the original description of this species was based on an immature (subadult) male, which is herein designated as the lectotype. We conclude that Centrurus granosus simplex Thorell, 1876 is a senior synonym of Centruroides testaceus arubensis (Bakker, 1963), and elevate it to species level: Centruroides simplex (Thorell, 1876), comb. nov.
Buthus Awashensis Sp. N. From Ethiopia (Scorpiones: Buthidae), František Kovařík
Buthus Awashensis Sp. N. From Ethiopia (Scorpiones: Buthidae), František Kovařík
Euscorpius
Buthus awashensis sp. n. from the Awash region of Ethiopia, is described and compared with B. berberensis Pocock, 1900 from Somaliland. The new species is characterized chiefly by the total length of 50–65 mm. B. berberensis reaches only 45–55 mm and differs in coloration, with adults having the chela of pedipalp and chelicerae entirely yellow without dark reticulations, and by mophometric characters, mainly the shape of the chela of pedipalp. Pectinal marginal tips extend the to proximal end of the fourth sternite in males of B. awashensis sp. n. and to proximal end of the fifth sternite in males of …
Hemiscorpius Novaki Sp. N. From Somaliland (Scorpiones: Hemiscorpiidae), František Kovařík, Tomáš Mazuch
Hemiscorpius Novaki Sp. N. From Somaliland (Scorpiones: Hemiscorpiidae), František Kovařík, Tomáš Mazuch
Euscorpius
Hemiscorpius novaki sp. n. from Somaliland is described and compared with other African species of the genus. The new species is characterized chiefly by the total length of 40–46 mm; yellow to yellowish-brown color with pedipalp fingers reddish brown to black, darker than the chela; slightly longer metasoma in the male than in the female. These characters distinguish H. novaki sp. n. from H. somalicus Lourenço, 2011. The third African species of the genus, H. tellinii Borelli, 1904, is known only from the female holotype, which differs from females of H. novaki sp. n. in having much less pronounced granulation …
Evaluating Species Responses To Climate Change Using Ecological Niche Modeling And Genetic Data, Jeanette Perry
Evaluating Species Responses To Climate Change Using Ecological Niche Modeling And Genetic Data, Jeanette Perry
Undergraduate Research Opportunities Program (UROP)
The current and projected future warming trends together with degradation of habitats throughout much of the Great Basin and Columbian Plateau represent real threats to many species occupying these regions. If we can determine the impacts of past climatic changes on the distribution of species, we can obtain a better understanding of the future impacts of projected climatic trends on many species in these regions. My results with the Great Basin Pocket Mouse (Perognathus parvus) may be relevant to conservation ecologists and resource managers attempting to protect several Endangered Species Act candidates, such as the pygmy cottontail (Brachylagus idahoensis). I …
Scorpions In The Modern Cuban Culture: An Introductory Iconography, Luis F. De Armas
Scorpions In The Modern Cuban Culture: An Introductory Iconography, Luis F. De Armas
Euscorpius
Some graphic examples of the role of scorpions in the present-day culture of Cuba are presented. They include tattoos, jewels, carpets, caps, and drawings by children, among other objects of personal or social usage. Increased use of this arachnid as a cultural element among Cuban people during last 50 years seems to be directly related with globalization, mostly through the TV and movies.
On Fabre’S Traces: An Important Contributor To The Knowledge Of Buthus Occitanus (Amoreux, 1789), Marco Colombo
On Fabre’S Traces: An Important Contributor To The Knowledge Of Buthus Occitanus (Amoreux, 1789), Marco Colombo
Euscorpius
Jean-Henri Casimir Fabre (1823–1915) has probably been one of the most important entomologists of the world in the last two centuries, leaving to posterity a huge amount of manuscripts and books. The Languedoc yellow scorpion, Buthus occitanus (Amoreaux, 1789), has been one of his objects of study: many of its behaviours, including the famous “promenade a deux”, have been described by the careful eye of the French entomologist, giving an interesting contribution to modern scorpiology
The First Record Of The Family Euscorpiidae (Arachnida: Scorpiones) From Central China, With A Key Of Chinese Species Of The Genus Scorpiops, Zhi-Yong Di, Ya-Wen He, Zhi-Jian Cao, Ying-Liang Wu, Wen-Xin Li
The First Record Of The Family Euscorpiidae (Arachnida: Scorpiones) From Central China, With A Key Of Chinese Species Of The Genus Scorpiops, Zhi-Yong Di, Ya-Wen He, Zhi-Jian Cao, Ying-Liang Wu, Wen-Xin Li
Euscorpius
The genus Scorpiops (Euscorpiidae) is recorded for the first time in Central China. Two immature specimens of a form belonging to Scorpiops hardwickii (Gervais, 1843) “complex” were collected from Huzhaoshan Mountains in Hubei Province. A discussion of Chinese species of genus Scorpiops is provided, as well as a key of Scorpiops from China.
Scorpions In Ancient Egypt, Hisham K. El-Hennawy
Scorpions In Ancient Egypt, Hisham K. El-Hennawy
Euscorpius
The ancient Egyptians knew the scorpion and its toxicity, and venerated it since pre-dynastic era. They used the scorpion as a king's name, a name of a nome (county), and a symbol to their goddess, Serqet, that protects the body and the viscera of the dead, and that accompanies them in their journey to the afterlife. They had medical prescriptions and magical spells to heal the stings. Since the 5th dynasty, the title of a “Follower of Serket” was given to clever physicians. Scorpions are most famously depicted on Horus Cippus, a talisman featuring Horus the Child holding in his …
Pectine Development In Scorpion Embryos And First And Second Instars, Roger D. Farley
Pectine Development In Scorpion Embryos And First And Second Instars, Roger D. Farley
Euscorpius
The pectines are complex sensory organs that extend from the ventral surface of the anterior opisthosoma (mesosoma) in all extant scorpions and nearly all the fossil scorpions that have been examined. The pectines are synapomorphic for the Order Scorpiones. In this investigation, the scanning electron microscope (SEM) was used to study the development of the pectines in representatives from five scorpion families. In the more basal families (e.g., Vaejovidae) with apoikogenic development, the pectines start to develop early with enlargement of the limb buds on the third opisthosomal segment. The primordial pectines become elongate lobes attached to the ventro-lateral surface …
The First Record Of Upper Permian And Lower Triassic Scorpions From Russia (Chelicerata: Scorpiones), Victor Fet, Dmitry E. Shcherbakov, Michael E. Soleglad
The First Record Of Upper Permian And Lower Triassic Scorpions From Russia (Chelicerata: Scorpiones), Victor Fet, Dmitry E. Shcherbakov, Michael E. Soleglad
Euscorpius
Several small fragments of fossil scorpions are reported from two localities in Vologda Province, Russia, representing the Upper Permian (Severodvinian, correlated to Wuchiapingian) (Isady) and Lower Triassic just above the Permian-Triassic boundary (Induan) (Nedubrovo). Most observed structures are not diagnostic at genus or family level. The Isady leg fragment possesses ungues (claws), which are both denticulated and setaceous, and resembles a Carboniferous Eobuthus sp. (Eobuthidae). It is the latest record of this type of ungues, which are known in some Paleozoic scorpions (extinct suborder Mesoscorpiones); all extant scorpions have smooth claws without denticulation or setation.
In Situ Infrared Videography Of Sand Scorpion Nighttime Surface Activity, Douglas D. Gaffin
In Situ Infrared Videography Of Sand Scorpion Nighttime Surface Activity, Douglas D. Gaffin
Euscorpius
Sand scorpions make burrows from which they emerge at night to seek mates and prey. Previous ecological studies have documented scorpion activities on the sand surface. Few studies, however, have videotaped scorpion movements in the context of understanding their sensory neurobiology. Our objective is to understand which signals guide scorpions as they emerge from and return to their burrows. Candidate stimuli include chemical trails, footsteps, celestial patterns, geomagnetic cues, humidity and/or temperature gradients, distinctive scents from the burrow, seismic echolocation, memory, or landmark orientation. We videotaped scorpions to learn whether they return to their burrows by the same path they …
Further Considerations On The Species Of The Genus Orthochirus Karsch, 1891 From Africa, With Description Of Three New Species (Scorpiones: Buthidae), Wilson R. Lourenço, Elise-Anne Leguin
Further Considerations On The Species Of The Genus Orthochirus Karsch, 1891 From Africa, With Description Of Three New Species (Scorpiones: Buthidae), Wilson R. Lourenço, Elise-Anne Leguin
Euscorpius
New considerations are proposed regarding the African species of the genus Orthochirus Karsch, 1891. Two species, Orthochirus aristidis (Simon, 1882) and Orthochirus innesi Simon, 1910 have been the subject of several publications in the past decades; however, doubts remain about their exact identity and range of geographical distribution. In this note, their taxonomic status is reinvestigated. The type material is revised and the lectotype and paralectotypes are designated for O. aristidis. Revised diagnoses and illustrations are proposed for both species, and these are confirmed as valid. Three new species are described from Algeria, Morocco, and Mauritania. The total number …
Polymorphism And Hybridization In Species Of Hottentotta Birula, 1908 (Scorpiones: Buthidae), Wilson R. Lourenço, Eric Ythier, Mark Stockmann, John L. Cloudsley-Thompson
Polymorphism And Hybridization In Species Of Hottentotta Birula, 1908 (Scorpiones: Buthidae), Wilson R. Lourenço, Eric Ythier, Mark Stockmann, John L. Cloudsley-Thompson
Euscorpius
A new and well documented case of hybridization among scorpions is presented. It was obtained under laboratory conditions between Hottentotta jayakari (Pocock) and Hottentotta salei (Vachon) specimens of which had been collected in the northern and southern regions of Oman. Hybrids were successfully produced not only from F0 males and females, but also from F1 males and females, thereby attesting to the fact that the first generation obtained (F1), was completely fertile. Both F1 and F2 broods were composed of dark and pale morphs, indicating that the juveniles could inherit either one or …
Redescription Of Tityus Pictus Pocock, 1893 And Tityus Smithii Pocock, 1893, With Notes On The Tityus Species From The Lesser Antilles (Scorpiones: Buthidae), Rolando Teruel
Euscorpius
In the present paper, the taxonomic status of Tityus pictus Pocock, 1893 and all of its junior synonyms is revised. Tityus smithii Pocock, 1893 is restored as a valid species, and the subspecies Tityus smithii microdon Pocock, 1893 (currently T. pictus microdon) is regarded as its junior synonym. Both T. pictus and T. smithii are redescribed, supplementary information on their morphological variability are given, and their geographical distribution is up- dated, including a new locality record for the latter. Also, the taxonomic position and relationships of all Lesser Antillean species of the genus are clarified: it is demonstrated that …
Redescription And Taxonomic Position Of Tityus Atriventer Pocock, 1897 (Scorpiones: Buthidae), Rolando Teruel, František Kovařík
Redescription And Taxonomic Position Of Tityus Atriventer Pocock, 1897 (Scorpiones: Buthidae), Rolando Teruel, František Kovařík
Euscorpius
The largely neglected Lesser Antillean scorpion Tityus atriventer Pocock, 1897 is herein redescribed, after study of the two syntypes and one additional adult male. The latter was recently collected from Union Island (about 55 km northeast of Grenada), and it implies the first published finding of this species after its original description, and the first record of the species both outside the type-locality and from the Grenadines islands. The taxonomic position of T. atriventer is clarified (including designation of a lectotype and a paralectotype), its diagnosis is updated, a fully illustrated redescription is presented according to the current taxonomy of …
A New Species Of Vaejovis From Prescott, Arizona (Scorpiones: Vaejovidae), Richard F. Ayrey, Michael E. Soleglad
A New Species Of Vaejovis From Prescott, Arizona (Scorpiones: Vaejovidae), Richard F. Ayrey, Michael E. Soleglad
Euscorpius
A new scorpion species, Vaejovis crumpi, sp. nov., is described from Prescott, Yavapai Co., Arizona. This species is related to V. paysonensis Soleglad, 1973, and the “sky island” species of southern Arizona. V. crumpi is compared to the seven Vaejovis species currently reported for Arizona, in particular to V. paysonensis.