THE MARINE DIATOM GENUSCLIMACONEIS(BERKELEYACEAE, BACILLARIOPHYTA): TWO NEW SPECIES FROM ABU DHABI, UNITED ARAB EMIRATES

2002 ◽  
Vol 17 (2) ◽  
pp. 309-318 ◽  
Author(s):  
Geraldine Reid ◽  
David M. Williams
Author(s):  
Diego N. Barbosa ◽  
Celso O. Azevedo

Literature about Mesitiinae Kieffer, 1914 has not been treated extensively from a taxonomic viewpoint in comparison with other subfamilies in Bethylidae Latreille, 1802. Our research on species of Metrionotus Móczár, 1970, Clytrovorus Nagy, 1972 and Sulcomesitius Móczár, 1970 revealed a new hypopygium shape pattern, namely a ‘star-shaped’ hypopygium, which is characteristic of a new genus, Astromesitius gen. nov., with two new species Astromesitius thionyi gen. et sp. nov. and Astromesitius olavoi gen. et sp. nov. The descriptions of both new species are based on male specimens collected in Thailand and the United Arab Emirates. Astromesitius quatei (Móczár, 1977) gen. et comb. nov. is designated as type species for the new genus, which is erected for a total of seven species. The main diagnostic characteristics are the head longer than wide; a clypeus with a median lobe quadrate; an antenna with distinct long setae, with pedicel caliciform, and with flagellomeres long and caliciform; pronotum and anteromesoscutum with longitudinal sulcus indistinct or absent; metapectal-propodeal complex with posterior projection hardly distinct or absent; hypopygium star-shaped; genitalia with aedeagus slender and fusiform.


PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2371 ◽  
Author(s):  
Salvador Carranza ◽  
Marc Simó-Riudalbas ◽  
Sithum Jayasinghe ◽  
Thomas Wilms ◽  
Johannes Els

BackgroundThe Hajar Mountains of Oman and the United Arab Emirates (UAE) is the highest mountain range in Eastern Arabia. As a result of their old geological origin, geographical isolation, complex topography and local climate, these mountains provide an important refuge for endemic and relict species of plants and animals with strong Indo-Iranian affinities. Among vertebrates, the rock climbing nocturnal geckos of the genusAsaccusrepresent the genus with the highest number of endemic species in the Hajar Mountains. Recent taxonomic studies on the Zagros populations ofAsaccushave shown that this genus is much richer than it was previously thought and preliminary morphological and molecular data suggest that its diversity in Arabia may also be underestimated.MethodsA total of 83 specimens originally classified asAsaccus caudivolvulus(including specimens of the two new species described herein), six otherAsaccusspecies from the Hajar and the Zagros Mountains and two representatives of the genusHaemodraconwere sequenced for up to 2,311 base pairs including the mitochondrial12Sandcytband the nuclearc-mos,MC1RandACM4genes. Phylogenetic relationships were inferred using both Bayesian and maximum-likelihood approaches and the former method was also used to calibrate the phylogenetic tree. Haplotype networks and phylogenetic trees were inferred from the phased nuclear genes only. Sixty-one alcohol-preserved adult specimens originally classified asAsaccus caudivolvulusfrom the northern Hajar Mountains were examined for 13 morphometric and the five meristic variables using multivariate methods and were also used to diagnose and describe the two new species.ResultsThe results of the molecular and morphological analyses indicate that the species originally classified asAsaccus caudivolvulusis, in fact, an assemblage of three different species that started diversifying during the Mid-Miocene. The molecular phylogenies consistently recovered the Hajar endemicA. montanusas sister taxon to all the otherAsaccusspecies included in the analyses, rendering the Arabian species ofAsaccuspolyphyletic.DiscussionUsing this integrative approach we have uncovered a very old diversification event that has resulted in a case of microendemicity, where three morphologically and ecologically similar medium-sized lizard species coexist in a very short and narrow mountain stretch.Asaccus caudivolvulusis restricted to a small coastal area of the UAE and at risk from heavy development, while the two new species described herein are widely distributed across the northern tip of the Hajar Mountains and seem to segregate in altitude when found in close proximity in the Musandam Peninsula (Oman). Similarly to other integrative analyses of Hajar reptiles, this study highlights the high level of diversity and endemicity of this arid mountain range, underscoring its status as one of the top hotspots of reptile diversity in Arabia.


Zootaxa ◽  
2020 ◽  
Vol 4899 (1) ◽  
pp. 215-246
Author(s):  
IVAN L. F. MAGALHAES ◽  
MARK STOCKMANN ◽  
YURI M. MARUSIK ◽  
SERGEI L. ZONSTEIN

The Filistatinae genus Sahastata Benoit, 1968 is distributed in arid and semi-arid areas, from westernmost Sahara to India, and includes seven known species. Four of these are only known from one sex, including Sahastata nigra (Simon, 1897), the type species. Here we present the first description of a male of this species collected near the type locality in Muscat, Oman. Additionally, two new species are described: S. wunderlichi sp. nov. (♂♀, Morocco) and S. wesolowskae sp. nov. (♂♀, Oman). Sahastata infuscata (Kulczyński, 1901) is newly recorded from Kenya and Yemen and S. nigra is newly recorded from the United Arab Emirates. DNA barcodes are given for S. nigra and the two new species. We observed some details of the life cycle of three Sahastata species, including clutch size, time to maturation, and a biased sex ratio for individuals raised from egg sacs, indicating that only 20–25% of specimens reaching adulthood are males. We provide SEM images of spiders of this genus, some observations on the morphology of spinnerets and male palps, and a distribution map of the species included in the genus. 


Zootaxa ◽  
2011 ◽  
Vol 3032 (1) ◽  
pp. 17
Author(s):  
PAULO R. W. STEIN ◽  
ISABEL D. C. C. ALENCAR ◽  
DIEGO N. BARBOSA ◽  
CELSO O. AZEVEDO

Pristocera afra Magretti, 1884 which currently belongs to genus Epyris Westwood is revised and redescribed. The lectotype of P. afra Magretti is designated. New synonymy is proposed for Epyris afer (Magretti, 1884): Epyris pilosipes Kieffer, 1904, syn. nov.; Epyris analis Kieffer, 1905, syn. nov.; Epyris secundus Brues, 1906, syn. nov.; Epyris rugicollis Cameron, 1906, syn. nov.; Epyris plurilineata Turner, 1928, syn. nov. Two new species Epyris enerterus Stein & Azevedo, sp. nov. (Myanmar) and Epyris penatii Stein & Azevedo, sp. nov. (Sudan) are described and illustrated. Epyris afer (Magretti) is newly recorded from Yemen, United Arab Emirates, Thailand, and Vietnam.


Author(s):  
Mostafa R. Sharaf ◽  
Shehzad Salman ◽  
Hathal M. Al Dhafer ◽  
Shahid A. Akbar ◽  
Mahmoud S. Abdel-Dayem ◽  
...  

The ant genus Trichomyrmex Mayr, 1865 is revised for the Arabian Peninsula based on the worker caste. Nine species are recognized and descriptions of two new species, T. almosayari sp. nov. and T. shakeri sp. nov. from Riyadh Province, Saudi Arabia, are given. For nomenclatural stability, lectotypes for T. abyssinicus (Forel, 1894a), T. lameerei (Forel, 1902) and T. mayri (Forel, 1902) are designated. A key to species and diagnostic characters of the treated species are presented. New country records are presented for T. abyssinicus (Saudi Arabia), T. destructor (Jerdon, 1851) (Saudi Arabia and the United Arab Emirates) and T. mayri (Qatar). New distributional records for T. destructor and T. mayri for Saudi Arabia are also provided. World and regional species distributions are indicated and distributional maps for nine Arabian species are included. Ecological and biological information is given when known.


2020 ◽  
Vol 11 (4) ◽  
pp. 825-836
Author(s):  
Franco Strumia ◽  
Antonius van Harten

The Chrysididae Hymenoptera of the Abu Dhabi territory has ben studied by means of MalaiseTraps. The comparison between humid and dry zones reveals the richer biodiversity preservedeven in small humid zones. Two new species are discovered and described, namely: Hedy-chridium caerulescens n. sp. and Chrysis houbaraeensis n. sp. In the humid zones the un-common Adelopyga huberi Kimsey, 1988 is discovered and illustrated.


2017 ◽  
Vol 41 (1) ◽  
pp. e2 ◽  
Author(s):  
Jean-Renaud Boisserie ◽  
Mathieu Schuster ◽  
Mark J. Beech ◽  
Andrew Hill ◽  
Faysal Bibi

Botany ◽  
2017 ◽  
Vol 95 (7) ◽  
pp. 629-639 ◽  
Author(s):  
Mohamed N. Al-Yahya’ei ◽  
Sangeeta Kutty Mullath ◽  
Laila A. AlDhaheri ◽  
Anna Kozłowska ◽  
Janusz Błaszkowski

The morphological, histochemical, and molecular properties of two new species of arbuscular mycorrhizal fungi (AMF; Glomeromycota) have been characterized. The first species is distinguished by spores that are orange to brownish orange, small, and formed only in clusters and mainly by having two laminate layers in a three-layered spore wall, with layer three staining dark in Melzer’s reagent. Despite the morphological similarity to some Septoglomus spp., phylogenetic analyses of sequences of the SSU–ITS–LSU nrDNA region and the RPB1 gene accommodated the fungus in the genus Dominikia, hence it was named Dominika emiratia. Intact spores of the second species, named Rhizoglomus dunense, closely resemble colourless isolates of R. clarum, but their spore wall layer three never becomes coloured with age, as does that in most R. clarum spores, and most importantly, the two fungi are separated by a large molecular distance. Dominikia emiratia was originally extracted from the rhizosphere of three plant species cultivated in two fields in a sandy desert in the Emirate of Abu Dhabi of the United Arab Emirates. Rhizoglomus dunense was found in a trap culture inoculated with the rhizosphere soil and root fragments of Ammophila arenaria, which had colonized sand dunes of the Mediterranean Sea, located near Thessalonica, Greece.


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