Kanika Bansal, Sanjeet Kumar, Anu Singh, Arushi Chaudhary, Prabhu B. Patil
The genus Xanthomonas primarily comprises phytopathogenic species. By carrying out deep phylo-taxonogenomics, we recently reported that the genera Xylella, Stenotrophomonas, and Pseudoxanthomonas are misclassified and belong to the genus Xanthomonas. Considering the importance of Xanthomonas/Xylella as plant pathogens and to further determine the taxonomic and phylogenetic breadth of this genus, we extended our earlier study by including all the reported genera and families in the order. This investigation revealed that at least four more genera belong to the genus Xanthomonas, with a notable case being Lysobacter, after which the family and order are named. Similarly, our investigation also allowed us to reveal the expanded taxonomic breadth of the related genus Rhodanobacter. This finding of a major related genus that lacks plant pathogenic species will allow for taxonomy-based comparative studies. The phylo-taxonogenomic revelations were further supported by complete 16S rRNA-based sequence boundaries proposed for genus delineation. Accordingly, we propose a taxonomic revision of these major and closely related genera along with their constituent families within the order Lysobacteraceae (Xanthomonadaceae). The identification of a major related genus lacking plant pathogenic species will be important in investigating the origin and success of pathogenic species/lineages in the genus Xanthomonas.
{"title":"Redefining the Taxonomic Boundaries of Genus Xanthomonas","authors":"Kanika Bansal, Sanjeet Kumar, Anu Singh, Arushi Chaudhary, Prabhu B. Patil","doi":"10.3390/taxonomy3040026","DOIUrl":"https://doi.org/10.3390/taxonomy3040026","url":null,"abstract":"The genus Xanthomonas primarily comprises phytopathogenic species. By carrying out deep phylo-taxonogenomics, we recently reported that the genera Xylella, Stenotrophomonas, and Pseudoxanthomonas are misclassified and belong to the genus Xanthomonas. Considering the importance of Xanthomonas/Xylella as plant pathogens and to further determine the taxonomic and phylogenetic breadth of this genus, we extended our earlier study by including all the reported genera and families in the order. This investigation revealed that at least four more genera belong to the genus Xanthomonas, with a notable case being Lysobacter, after which the family and order are named. Similarly, our investigation also allowed us to reveal the expanded taxonomic breadth of the related genus Rhodanobacter. This finding of a major related genus that lacks plant pathogenic species will allow for taxonomy-based comparative studies. The phylo-taxonogenomic revelations were further supported by complete 16S rRNA-based sequence boundaries proposed for genus delineation. Accordingly, we propose a taxonomic revision of these major and closely related genera along with their constituent families within the order Lysobacteraceae (Xanthomonadaceae). The identification of a major related genus lacking plant pathogenic species will be important in investigating the origin and success of pathogenic species/lineages in the genus Xanthomonas.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135094298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-09DOI: 10.5852/ejt.2023.900.2299
Cole, Mary L., Herbert, David G.
Seven new species of very small Gulella Pfeiffer, 1856 are described from two regions in the interior of south-eastern South Africa within the Maputaland-Pondoland-Albany biodiversity hotspot. In addition, the status of Gulella darglensis benthodon van Bruggen, 1980 is revised and raised to species level. All species are very small-shelled and are narrow-range endemics. Six species, G. judithmastersae sp. nov., G. kevincolei sp. nov., G. hlathikhulu sp. nov., G. nkandla sp. nov., G. mystica sp. nov. and G. libertas sp. nov. are each known from only one locality. The first two as well as G. benthodon and G. mcmasteri sp. nov. are found only in the Amathole Mountains, where poaching, illegal harvesting of plant products and uncontrolled access of cattle take place, including in protected areas. The other four species each occur at one locality in north-central KwaZulu-Natal. The localities of three of the last-mentioned species are in protected areas although they are isolated and surrounded by a heavily transformed cultural landscape rendering enforcement of conservation legislation a challenge. Six species occur in nature reserves, highlighting the importance of small pockets of protected habitat for the conservation of terrestrial snails.
{"title":"Seven new narrowly endemic species of Gulella Pfeiffer, 1856 from eastern South Africa (Gastropoda, Streptaxidae) and status revision for another","authors":"Cole, Mary L., Herbert, David G.","doi":"10.5852/ejt.2023.900.2299","DOIUrl":"https://doi.org/10.5852/ejt.2023.900.2299","url":null,"abstract":"Seven new species of very small Gulella Pfeiffer, 1856 are described from two regions in the interior of south-eastern South Africa within the Maputaland-Pondoland-Albany biodiversity hotspot. In addition, the status of Gulella darglensis benthodon van Bruggen, 1980 is revised and raised to species level. All species are very small-shelled and are narrow-range endemics. Six species, G. judithmastersae sp. nov., G. kevincolei sp. nov., G. hlathikhulu sp. nov., G. nkandla sp. nov., G. mystica sp. nov. and G. libertas sp. nov. are each known from only one locality. The first two as well as G. benthodon and G. mcmasteri sp. nov. are found only in the Amathole Mountains, where poaching, illegal harvesting of plant products and uncontrolled access of cattle take place, including in protected areas. The other four species each occur at one locality in north-central KwaZulu-Natal. The localities of three of the last-mentioned species are in protected areas although they are isolated and surrounded by a heavily transformed cultural landscape rendering enforcement of conservation legislation a challenge. Six species occur in nature reserves, highlighting the importance of small pockets of protected habitat for the conservation of terrestrial snails.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135045335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-06DOI: 10.5852/ejt.2023.899.2297
Zabel, Tina, Kuhlmann, Michael
Fourteen new species of the Colletes fasciatus species group are described, all of them endemic to the winter rainfall area in South Africa: C. ascopalis sp. nov. ♀, C. carolinae sp. nov. ♀♂, C. cedarbergensis sp. nov. ♀, C. fabiani sp. nov. ♀♂, C. fuscitergus sp. nov. ♂, C. khoisanorum sp. nov. ♀, C. kogelbergensis sp. nov. ♀♂, C. littoralis sp. nov. ♀, C. longitarsus sp. nov. ♂, C. peerboomi sp. nov. ♀, C. richtersveldensis sp. nov. ♀, C. ruschia sp. nov. ♀♂, C. spinipes sp. nov. ♂, C. troetroeensis sp. nov. ♀. Two species are synonymized based on newly recognized sex associations: C. katharinae Kuhlmann, 2007 syn. nov. is synonymized with C. infracognitus Cockerell, 1937 and C. bokkeveldi Kuhlmann, 2007 syn. nov. with C. zygophyllum Kuhlmann, 2007. The previously unknown female of C. inornatus Cockerell, 1946 is described for the first time and new records of already described species are added. All of the currently known 37 species of the C. fasciatus-group are imaged and included in a key to facilitate their identification.
本文描述了 14 个 Colletes fasciatus 物种群的新物种，它们都是南非冬季降雨地区的特有物种：C. ascopalis sp.♀♂, C. littoralis sp.根据新确认的性结合，两个种被异名化：与 C. infracognitus Cockerell, 1937 和 C. bokkeveldi Kuhlmann, 2007 syn.inornatus Cockerell, 1946 的雌性，并增加了已描述物种的新记录。目前已知的 C. fasciatus 类的 37 个物种均已成像，并包含在一个检索表中，以方便识别。
{"title":"Taxonomic revision of the southern African Colletes fasciatus species group (Hymenoptera: Colletidae)","authors":"Zabel, Tina, Kuhlmann, Michael","doi":"10.5852/ejt.2023.899.2297","DOIUrl":"https://doi.org/10.5852/ejt.2023.899.2297","url":null,"abstract":"Fourteen new species of the Colletes fasciatus species group are described, all of them endemic to the winter rainfall area in South Africa: C. ascopalis sp. nov. ♀, C. carolinae sp. nov. ♀♂, C. cedarbergensis sp. nov. ♀, C. fabiani sp. nov. ♀♂, C. fuscitergus sp. nov. ♂, C. khoisanorum sp. nov. ♀, C. kogelbergensis sp. nov. ♀♂, C. littoralis sp. nov. ♀, C. longitarsus sp. nov. ♂, C. peerboomi sp. nov. ♀, C. richtersveldensis sp. nov. ♀, C. ruschia sp. nov. ♀♂, C. spinipes sp. nov. ♂, C. troetroeensis sp. nov. ♀. Two species are synonymized based on newly recognized sex associations: C. katharinae Kuhlmann, 2007 syn. nov. is synonymized with C. infracognitus Cockerell, 1937 and C. bokkeveldi Kuhlmann, 2007 syn. nov. with C. zygophyllum Kuhlmann, 2007. The previously unknown female of C. inornatus Cockerell, 1946 is described for the first time and new records of already described species are added. All of the currently known 37 species of the C. fasciatus-group are imaged and included in a key to facilitate their identification.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135304079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-05DOI: 10.5852/ejt.2023.898.2295
Thomas Laville, Marie-Béatrice Forel, Sylvain Charbonnier
Thylacocephalans are enigmatic euarthropods, known at least from the Silurian to the Cretaceous. Despite remaining uncertainties concerning their anatomy, key features can be recognised such as a shield enveloping most of the body, hypertrophied compound eyes, three pairs of raptorial appendages and a posterior trunk consisting of eight up to 22 segments bearing appendages and eight pairs of gills. Well-known for its euarthropod diversity, the La Voulte-sur-Rhône Lagerstätte (Callovian, Middle Jurassic, France) has provided many remains of four thylacocephalan species so far: Dollocaris ingens, Kilianicaris lerichei, Paraostenia voultensis and Clausocaris ribeti. In this paper, we study the type material as well as undescribed material. The re-description of La Voulte thylacocephalans reveals an unexpected diversity, with the description of two new species, Austriocaris secretanae sp. nov. and Paraclausocaris harpa gen. et sp. nov., and of specimens of Mayrocaris, a taxon originally described from Solnhofen Lagerstätten. We also reassign Clausocaris ribeti to Ostenocaris. The reappraisal of La Voulte thylacocephalans also provides important insight into the palaeobiology of Thylacocephala. New key anatomical features are described, such as an oval structure or a putative statocyst, which indicate a nektonic or nektobenthic lifestyle. Finally, we document a juvenile stage for Paraostenia voultensis.
{"title":"Re-appraisal of thylacocephalans (Euarthropoda, Thylacocephala) from the Jurassic La Voulte-sur-Rhône Lagerstätte","authors":"Thomas Laville, Marie-Béatrice Forel, Sylvain Charbonnier","doi":"10.5852/ejt.2023.898.2295","DOIUrl":"https://doi.org/10.5852/ejt.2023.898.2295","url":null,"abstract":"Thylacocephalans are enigmatic euarthropods, known at least from the Silurian to the Cretaceous. Despite remaining uncertainties concerning their anatomy, key features can be recognised such as a shield enveloping most of the body, hypertrophied compound eyes, three pairs of raptorial appendages and a posterior trunk consisting of eight up to 22 segments bearing appendages and eight pairs of gills. Well-known for its euarthropod diversity, the La Voulte-sur-Rhône Lagerstätte (Callovian, Middle Jurassic, France) has provided many remains of four thylacocephalan species so far: Dollocaris ingens, Kilianicaris lerichei, Paraostenia voultensis and Clausocaris ribeti. In this paper, we study the type material as well as undescribed material. The re-description of La Voulte thylacocephalans reveals an unexpected diversity, with the description of two new species, Austriocaris secretanae sp. nov. and Paraclausocaris harpa gen. et sp. nov., and of specimens of Mayrocaris, a taxon originally described from Solnhofen Lagerstätten. We also reassign Clausocaris ribeti to Ostenocaris. The reappraisal of La Voulte thylacocephalans also provides important insight into the palaeobiology of Thylacocephala. New key anatomical features are described, such as an oval structure or a putative statocyst, which indicate a nektonic or nektobenthic lifestyle. Finally, we document a juvenile stage for Paraostenia voultensis.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135481166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-04DOI: 10.5852/ejt.2023.897.2293
Valdez-Mondragón, Alejandro, Cabrera-Espinosa, Luis A.
A new species of the spider genus Latrodectus Walckenaer, 1805 from Mexico is described based on an integrative taxonomic approach. Latrodectus occidentalis Valdez-Mondragón sp. nov. is described using the molecular markers cytochrome c oxidase subunit 1 (CO1) and internal transcribed spacer 2 (ITS2), morphology of male and female specimens, and Species Distribution Models (SDM). Four molecular methods for species delimitation were implemented. The new species is characterized by having a unique dorsal coloration pattern on the abdomen. Latrodectus occidentalis sp. nov. is considered a distinct and valid species for four reasons: (1) it can be distinguished by morphological characters (genital and somatic); (2) the average interspecific genetic variation is > 2%; (3) 12 haplotypes were recovered within the species, being separated by the next close haplogroup of L. hesperus Chamberlin & Ivie, 1935 (30 mutations); and (4) congruence was observed among the four molecular methods. The number of recorded species of Latrodectus from Mexico increases to four: Latrodectus mactans (Fabricius, 1775), L. hesperus Chamberlin & Ivie, 1935, L. geometricus C.L. Koch, 1841 (introduced), and L. occidentalis sp. nov. The diversity of the genus Latrodectus from Mexico is surely underestimated, and more sampling is needed from the different biogeographical provinces and ecoregions to fill in these gaps.
基于综合分类方法描述了1805年墨西哥蜘蛛属Latrodectus Walckenaer一新种。利用细胞色素c氧化酶亚基1 (CO1)和内部转录间隔段2 (ITS2)分子标记、雌雄标本形态和物种分布模型(SDM)对西方疟蚊Valdez-Mondragón sp. 11进行了描述。采用了四种分子方法进行物种划界。这个新物种的特点是腹部有一种独特的背色图案。西方疟蚊(Latrodectus occidentalis sp. 11 .)被认为是一个独特而有效的物种，原因有四:(1)它可以通过形态特征(生殖和躯体)来区分;(2)种间平均遗传变异为>2%;(3)在该物种内恢复了12个单倍型，并被L. hesperus Chamberlin &艾维，1935年(30次突变);(4)四种分子方法之间具有一致性。墨西哥有记录的Latrodectus种数增加到4种:Latrodectus mactans (Fabricius, 1775)， L. hesperus Chamberlin &Ivie, 1935, L. geometricus C.L. Koch, 1841(引种)，L. occidentalis p. 11 .墨西哥的Latrodectus属的多样性肯定被低估了，需要从不同的生物地理省和生态区域进行更多的采样来填补这些空白。
{"title":"Phylogenetic analyses and description of a new species of black widow spider of the genus Latrodectus Walckenaer (Araneae, Theridiidae) from Mexico; one or more species?","authors":"Valdez-Mondragón, Alejandro, Cabrera-Espinosa, Luis A.","doi":"10.5852/ejt.2023.897.2293","DOIUrl":"https://doi.org/10.5852/ejt.2023.897.2293","url":null,"abstract":"A new species of the spider genus Latrodectus Walckenaer, 1805 from Mexico is described based on an integrative taxonomic approach. Latrodectus occidentalis Valdez-Mondragón sp. nov. is described using the molecular markers cytochrome c oxidase subunit 1 (CO1) and internal transcribed spacer 2 (ITS2), morphology of male and female specimens, and Species Distribution Models (SDM). Four molecular methods for species delimitation were implemented. The new species is characterized by having a unique dorsal coloration pattern on the abdomen. Latrodectus occidentalis sp. nov. is considered a distinct and valid species for four reasons: (1) it can be distinguished by morphological characters (genital and somatic); (2) the average interspecific genetic variation is > 2%; (3) 12 haplotypes were recovered within the species, being separated by the next close haplogroup of L. hesperus Chamberlin & Ivie, 1935 (30 mutations); and (4) congruence was observed among the four molecular methods. The number of recorded species of Latrodectus from Mexico increases to four: Latrodectus mactans (Fabricius, 1775), L. hesperus Chamberlin & Ivie, 1935, L. geometricus C.L. Koch, 1841 (introduced), and L. occidentalis sp. nov. The diversity of the genus Latrodectus from Mexico is surely underestimated, and more sampling is needed from the different biogeographical provinces and ecoregions to fill in these gaps.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"222 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135548820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-03DOI: 10.5852/ejt.2023.896.2291
Manuel J. Tenorio, Nicolas Puillandre
The present work reviews the deep-water cone fauna of New Caledonia and its Economic Exclusive Zone. It is based on the material collected for more than 40 years by oceanographic expeditions in the deep waters surrounding New Caledonia, organized by the Muséum national d’histoire naturelle-Paris/ORSTOM, then Institut de Recherche pour le Développement, in the framework of the Tropical Deep-Sea Benthos programme. A total of 2377 lots containing 5113 specimens collected in depths between 100 and 1260 m have been examined. About 770 specimens were collected live, and allowed for radular and DNA studies. A phylogenetic analysis, based on the cox1 gene, of the deep-water cone snail fauna of New Caledonia is presented, along with a detailed, fully illustrated taxonomic account with data on geographic and bathymetric distribution and radular morphology. A total of 76 different species of cone snails were identified among the collected material. Of these, 22 corresponded to typical shallow water species, which were most likely translocated into deeper water, whereas 54 could be considered true components of the deep water (below 100 m) cone snail fauna. Species of the genus Profundiconus represent 22%, whereas those of the genera Conasprella and Conus represent 28% and 50%, respectively. Eleven deep water cone species can be considered as endemic to the New Caledonia EEZ, representing 20.3% of the total. The most abundant species found (more than 400 specimens each) were Conus (Afonsoconus) bruuni, Conasprella (Boucheticonus) alisi, Conasprella (Conasprella) boucheti, and Profundiconus vaubani. The new species Conus (Taranteconus) samadiae sp. nov. is hereby described.
{"title":"Revision of the deep-water cone snail fauna from New Caledonia (Gastropoda, Conoidea)","authors":"Manuel J. Tenorio, Nicolas Puillandre","doi":"10.5852/ejt.2023.896.2291","DOIUrl":"https://doi.org/10.5852/ejt.2023.896.2291","url":null,"abstract":"The present work reviews the deep-water cone fauna of New Caledonia and its Economic Exclusive Zone. It is based on the material collected for more than 40 years by oceanographic expeditions in the deep waters surrounding New Caledonia, organized by the Muséum national d’histoire naturelle-Paris/ORSTOM, then Institut de Recherche pour le Développement, in the framework of the Tropical Deep-Sea Benthos programme. A total of 2377 lots containing 5113 specimens collected in depths between 100 and 1260 m have been examined. About 770 specimens were collected live, and allowed for radular and DNA studies. A phylogenetic analysis, based on the cox1 gene, of the deep-water cone snail fauna of New Caledonia is presented, along with a detailed, fully illustrated taxonomic account with data on geographic and bathymetric distribution and radular morphology. A total of 76 different species of cone snails were identified among the collected material. Of these, 22 corresponded to typical shallow water species, which were most likely translocated into deeper water, whereas 54 could be considered true components of the deep water (below 100 m) cone snail fauna. Species of the genus Profundiconus represent 22%, whereas those of the genera Conasprella and Conus represent 28% and 50%, respectively. Eleven deep water cone species can be considered as endemic to the New Caledonia EEZ, representing 20.3% of the total. The most abundant species found (more than 400 specimens each) were Conus (Afonsoconus) bruuni, Conasprella (Boucheticonus) alisi, Conasprella (Conasprella) boucheti, and Profundiconus vaubani. The new species Conus (Taranteconus) samadiae sp. nov. is hereby described.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135739093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-02DOI: 10.5852/ejt.2023.895.2289
Jérôme Constant
The Australian genus of Eurybrachidae (Hemiptera, Fulgoromorpha) Kamabrachys gen. nov. is described to accommodate Platybrachys signata Distant, 1892 and Euronotobrachys plana Kirkaldy, 1906, the former being the type species. The new combinations Kamabrachys signata (Distant, 1892) gen. et comb. nov. and K. plana (Kirkaldy, 1906) gen. et comb. nov. are subsequently proposed. Ten new species are also included in the genus and described: K. andersoni gen. et sp. nov., K. brennani gen. et sp. nov., K. campbelli gen. et sp. nov., K. danielsi gen. et sp. nov., K. falcata gen. et sp. nov., K. fasciata gen. et sp. nov., K. pedemontana gen. et sp. nov., K. rieki gen. et sp. nov., K. v-carinatum gen. et sp. nov. and K. waineri gen. et sp. nov. The male and female genitalia of each species are illustrated and photographs of habitus, distribution maps, biological data and an identification key are provided. The mating behaviour of K. signata is described, illustrated and discussed. The genus Kamabrachys currently contains 12 species and is associated to trees in the family Myrtaceae.
描述了澳大利亚 Eurybrachidae（半翅目，Fulgoromorpha）Kamabrachys 新属，以容纳 Platybrachys signata Distant, 1892 和 Euronotobrachys plana Kirkaldy, 1906，前者为模式种。和 K. plana (Kirkaldy, 1906) gen.10 个新种也被列入该属并进行了描述：K. andersoni gen、K. fasciata gen. et sp. nov.、K. pedemontana gen. et sp. nov.、K. rieki gen. et sp. nov.、K. v-carinatum gen. et sp. nov.和 K. waineri gen. et sp. nov.。图文并茂地展示了每个物种的雄性和雌性生殖器，并提供了习性照片、分布图、生物数据和识别钥匙。对 K. signata 的交配行为进行了描述、说明和讨论。Kamabrachys 属目前有 12 个种，与桃金娘科的树木有关。
{"title":"Revision of the Eurybrachidae (XVII). The new Australian genus Kamabrachys gen. nov. with ten new species (Hemiptera: Fulgoromorpha)","authors":"Jérôme Constant","doi":"10.5852/ejt.2023.895.2289","DOIUrl":"https://doi.org/10.5852/ejt.2023.895.2289","url":null,"abstract":"The Australian genus of Eurybrachidae (Hemiptera, Fulgoromorpha) Kamabrachys gen. nov. is described to accommodate Platybrachys signata Distant, 1892 and Euronotobrachys plana Kirkaldy, 1906, the former being the type species. The new combinations Kamabrachys signata (Distant, 1892) gen. et comb. nov. and K. plana (Kirkaldy, 1906) gen. et comb. nov. are subsequently proposed. Ten new species are also included in the genus and described: K. andersoni gen. et sp. nov., K. brennani gen. et sp. nov., K. campbelli gen. et sp. nov., K. danielsi gen. et sp. nov., K. falcata gen. et sp. nov., K. fasciata gen. et sp. nov., K. pedemontana gen. et sp. nov., K. rieki gen. et sp. nov., K. v-carinatum gen. et sp. nov. and K. waineri gen. et sp. nov. The male and female genitalia of each species are illustrated and photographs of habitus, distribution maps, biological data and an identification key are provided. The mating behaviour of K. signata is described, illustrated and discussed. The genus Kamabrachys currently contains 12 species and is associated to trees in the family Myrtaceae.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135834427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-29DOI: 10.5852/ejt.2023.894.2287
Alberto Sendra, Alba Sánchez-García, Hannelore Hoch, Alberto Jiménez-Valverde, Jesús Selfa, Soumia Moutaouakil, Gerhard Du Preez, Ian Millar, Rodrigo Lopes Ferreira
Few species of Japygidae (Diplura) have been discovered in cave ecosystems despite their importance as large predators. A small collection of rare specimens of this hexapod group has allowed to explore the taxonomy of japygids from caves in New Zealand, Morocco and South Africa, and to describe one new genus: Imazighenjapyx Sendra & Sánchez-García gen. nov., as well as four new species: Austrjapyx wynbergensis Sendra & Sánchez-García sp. nov., Imazighenjapyx marocanus Sendra & Sánchez-García gen. et sp. nov., Opisthjapyx naledi Sendra & Sánchez-García sp. nov. and Teljapyx aotearoa Sendra & Sánchez-García sp. nov. For each of the new taxa we give a comprehensive description of their habitats. These new findings resulted in a revision of the distribution and allowed to re-evaluate the morphological traits of the fifteen cave-adapted japygids species already known worldwide. The functional morphology of the remarkable abdominal pincers of Japygidae and their adaptation to predation are discussed, as well as their potential role in mating behaviour.
尽管它们是重要的大型捕食者，但在洞穴生态系统中发现的贾蝇科(Diplura)物种很少。这个六足动物群体的一小部分稀有标本的收集，使我们得以探索新西兰、摩洛哥和南非洞穴中japygids的分类，并描述了一个新属:Imazighenjapyx Sendra &Sánchez-García gen. nov.，以及四个新种:Austrjapyx wynbergensis Sendra &Sánchez-García sp. nov.， Imazighenjapyx marocanus Sendra &Sánchez-García gen. et sp. nov.， Opisthjapyx naledi Sendra &Sánchez-García sp. 11 . and Teljapyx aotearoa Sendra &对于每一个新的分类群，我们都对它们的栖息地进行了全面的描述。这些新发现导致了对分布的修订，并允许重新评估世界上已知的15种穴居菊科植物的形态特征。本文讨论了瓢虫腹螯的功能形态及其对捕食的适应性，以及它们在交配行为中的潜在作用。
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Pub Date : 2023-09-28DOI: 10.5852/ejt.2023.893.2285
Zhaoqi Leng, Anh Duc Tran, Zhen Ye
The species of Rhyacobates Esaki, 1923 are reviewed. Three new species, R. bui sp. nov. from Guangxi, China and Lạng Sơn, Vietnam, R. elongatus sp. nov. from Hà Tĩnh, Vietnam and R. turgidus sp. nov. from Sichuan and Chongqing, China are described. Supplemental descriptions, diagnoses and new distribution records are provided for the fourteen previously known species, i.e., R. abdominalis Andersen & Chen, 1995, R. anderseni Tran & Yang, 2006, R. angustus Tran & Nguyen, 2016, R. chinensis Hungerford & Matsuda, 1959, R. constrictus Tran & Nguyen, 2016, R. edentatus Andersen & Chen, 1995, R. gongvo Tran & Yang, 2006, R. lundbladi (Hungerford, 1957), R. malaisei Andersen & Chen, 1995, R. recurvus Andersen & Chen, 1995, R. scorpio Andersen & Chen, 1995, R. svenhedini (Lundblad, 1934), R. takahashii Esaki, 1923, and R. zetteli Tran & Nguyen, 2016. Photographs and line drawings of the habitus, diagnostic characteristics of both sexes, the habitat and in-situ photographs are presented. A revised key to the species of Rhyacobates is also provided.
评述了1923年Rhyacobates Esaki的种。本文记述了3个新种:中国广西和越南Lạng Sơn的R. bui sp. 11、越南Tĩnh的R. elongatus sp. 11和中国四川和重庆的R. turgidus sp. 11。对已知的14种，即r.b abdominalis Andersen &陈氏，1995，陈氏&Yang, 2006, R. angustus Tran &Nguyen, 2016, R. chinensis Hungerford &Matsuda, 1959, R. constrictus Tran &Nguyen, 2016, R. edentatus Andersen &陈，1995，陈功沃&Yang, 2006, R. lundbladi (Hungerford, 1957)， R. malaisei Andersen &陈，1995,R. recurvus Andersen &Chen, 1995, R. scorpio Andersen &陈，1995,R. svenhedini (Lundblad, 1934)， R. takahashi Esaki, 1923, R. zetteli Tran &阮,2016年。给出了生境的照片和线条图，两性的诊断特征，生境和现场照片。还提供了一种订正的酸盐种类的关键。
{"title":"Taxonomic review of Rhyacobates Esaki, 1923, with descriptions of three new species (Hemiptera: Heteroptera: Gerridae)","authors":"Zhaoqi Leng, Anh Duc Tran, Zhen Ye","doi":"10.5852/ejt.2023.893.2285","DOIUrl":"https://doi.org/10.5852/ejt.2023.893.2285","url":null,"abstract":"The species of Rhyacobates Esaki, 1923 are reviewed. Three new species, R. bui sp. nov. from Guangxi, China and Lạng Sơn, Vietnam, R. elongatus sp. nov. from Hà Tĩnh, Vietnam and R. turgidus sp. nov. from Sichuan and Chongqing, China are described. Supplemental descriptions, diagnoses and new distribution records are provided for the fourteen previously known species, i.e., R. abdominalis Andersen & Chen, 1995, R. anderseni Tran & Yang, 2006, R. angustus Tran & Nguyen, 2016, R. chinensis Hungerford & Matsuda, 1959, R. constrictus Tran & Nguyen, 2016, R. edentatus Andersen & Chen, 1995, R. gongvo Tran & Yang, 2006, R. lundbladi (Hungerford, 1957), R. malaisei Andersen & Chen, 1995, R. recurvus Andersen & Chen, 1995, R. scorpio Andersen & Chen, 1995, R. svenhedini (Lundblad, 1934), R. takahashii Esaki, 1923, and R. zetteli Tran & Nguyen, 2016. Photographs and line drawings of the habitus, diagnostic characteristics of both sexes, the habitat and in-situ photographs are presented. A revised key to the species of Rhyacobates is also provided.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135344637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-27DOI: 10.5852/ejt.2023.892.2283
Williams, Paul H., Dorji, Phurpa, Huang, Jiaxing, Jaffar, Saleem, Japoshvili, George, Narah, Jaya, Ren, Zongxin, Streinzer, Martin, Thanoosing, Chawatat, Tian, Li, Orr, Michael C.
The mountain bumblebees of the subgenus Alpigenobombus Skorikov, 1914, are uniquely distinctive because the females have enlarged mandibles with six large, evenly spaced teeth, which they use to bite holes in long-corolla flowers for nectar robbing. Recognition of species in this subgenus has been uncertain, with names used in various combinations. To revise the species, we examined COI-like barcodes for evidence of species’ gene coalescents using MrBayes and PTP and we compare the coalescent groups with morphological variation for integrative assessment. While we seek to include only orthologous barcodes (the ‘good’) and exclude all of the more strongly divergent barcode-like numts (the ‘bad’), for some nominal taxa only low-divergence numts could be obtained (the ‘ugly’). For taxa with no orthologous sequences available, using a minimum number of the lowest divergence numts did yield coalescent candidates for species that were consistent with morphologically diagnosable groups. These results agree in recognising 11 species within this subgenus, supporting: (1) recognising the widespread European Bombus mastrucatus Gerstaecker, 1869 stat. rev. as a species separate from the west Asian B. wurflenii Radoszkowski, 1860 s. str.; (2) the recently recognised B. rainai Williams, 2022, as a species separate from B. kashmirensis Friese, 1909, within the western Himalaya; (3) the recognition once again of B. sikkimi Friese, 1918 stat. rev. and B. validus Friese, 1905 stat. rev. as species separate from B. nobilis Friese, 1905 s. str. within the eastern Himalaya and Hengduan regions; (4) confirming the recognition of B. angustus Chiu, 1948, B. breviceps Smith, 1852 s. lat., B. genalis Friese, 1918, and B. grahami (Frison, 1933) as separate species within the Himalaya, China, and Southeast Asia; (5) recognising the conspecificity of the nominal taxa (not species) channicus Gribodo, 1892 (Southeast Asia) and dentatus Handlirsch, 1888 (Himalaya) as parts of the species B. breviceps s. lat. (southern and eastern China); and (6) recognising the conspecificity of the rare taxon beresovskii (Skorikov, 1933) syn. n. as part of the species B. grahami within China. Nectar robbing by bumblebees is reviewed briefly and prospects for future research discussed.
{"title":"Bumblebees with big teeth: revising the subgenus Alpigenobombus with the good, the bad and the ugly of numts (Hymenoptera: Apidae)","authors":"Williams, Paul H., Dorji, Phurpa, Huang, Jiaxing, Jaffar, Saleem, Japoshvili, George, Narah, Jaya, Ren, Zongxin, Streinzer, Martin, Thanoosing, Chawatat, Tian, Li, Orr, Michael C.","doi":"10.5852/ejt.2023.892.2283","DOIUrl":"https://doi.org/10.5852/ejt.2023.892.2283","url":null,"abstract":"The mountain bumblebees of the subgenus Alpigenobombus Skorikov, 1914, are uniquely distinctive because the females have enlarged mandibles with six large, evenly spaced teeth, which they use to bite holes in long-corolla flowers for nectar robbing. Recognition of species in this subgenus has been uncertain, with names used in various combinations. To revise the species, we examined COI-like barcodes for evidence of species’ gene coalescents using MrBayes and PTP and we compare the coalescent groups with morphological variation for integrative assessment. While we seek to include only orthologous barcodes (the ‘good’) and exclude all of the more strongly divergent barcode-like numts (the ‘bad’), for some nominal taxa only low-divergence numts could be obtained (the ‘ugly’). For taxa with no orthologous sequences available, using a minimum number of the lowest divergence numts did yield coalescent candidates for species that were consistent with morphologically diagnosable groups. These results agree in recognising 11 species within this subgenus, supporting: (1) recognising the widespread European Bombus mastrucatus Gerstaecker, 1869 stat. rev. as a species separate from the west Asian B. wurflenii Radoszkowski, 1860 s. str.; (2) the recently recognised B. rainai Williams, 2022, as a species separate from B. kashmirensis Friese, 1909, within the western Himalaya; (3) the recognition once again of B. sikkimi Friese, 1918 stat. rev. and B. validus Friese, 1905 stat. rev. as species separate from B. nobilis Friese, 1905 s. str. within the eastern Himalaya and Hengduan regions; (4) confirming the recognition of B. angustus Chiu, 1948, B. breviceps Smith, 1852 s. lat., B. genalis Friese, 1918, and B. grahami (Frison, 1933) as separate species within the Himalaya, China, and Southeast Asia; (5) recognising the conspecificity of the nominal taxa (not species) channicus Gribodo, 1892 (Southeast Asia) and dentatus Handlirsch, 1888 (Himalaya) as parts of the species B. breviceps s. lat. (southern and eastern China); and (6) recognising the conspecificity of the rare taxon beresovskii (Skorikov, 1933) syn. n. as part of the species B. grahami within China. Nectar robbing by bumblebees is reviewed briefly and prospects for future research discussed.","PeriodicalId":12062,"journal":{"name":"European journal of taxonomy","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135477482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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