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de Jong Y, Kouwenberg J, Boumans L, Hussey C, Hyam R, Nicolson N, Kirk P, Paton A, Michel E, Guiry MD, Boegh PS, Pedersen HÆ, Enghoff H, von Raab-Straube E, Güntsch A, Geoffroy M, Müller A, Kohlbecker A, Berendsohn W, Appeltans W, Arvanitidis C, Vanhoorne B, Declerck J, Vandepitte L, Hernandez F, Nash R, Costello MJ, Ouvrard D, Bezard-Falgas P, Bourgoin T, Wetzel FT, Glöckler F, Korb G, Ring C, Hagedorn G, Häuser C, Aktaç N, Asan A, Ardelean A, Borges PAV, Dhora D, Khachatryan H, Malicky M, Ibrahimov S, Tuzikov A, De Wever A, Moncheva S, Spassov N, Chobot K, Popov A, Boršić I, Sfenthourakis S, Kõljalg U, Uotila P, Olivier G, Dauvin JC, Tarkhnishvili D, Chaladze G, Tuerkay M, Legakis A, Peregovits L, Gudmundsson G, Ólafsson E, Lysaght L, Galil BS, Raimondo FM, Domina G, Stoch F, Minelli A, Spungis V, Budrys E, Olenin S, Turpel A, Walisch T, Krpach V, Gambin MT, Ungureanu L, Karaman G, Kleukers RMJC, Stur E, Aagaard K, Valland N, Moen TL, Bogdanowicz W, Tykarski P, Węsławski JM, Kędra M, M de Frias Martins A, Abreu AD, Silva R, Medvedev S, Ryss A, Šimić S, Marhold K, Stloukal E, Tome D, Ramos MA, Valdés B, Pina F, Kullander S, Telenius A, Gonseth Y, Tschudin P, Sergeyeva O, Vladymyrov V, Rizun VB, Raper C, Lear D, Stoev P, Penev L, Rubio AC, Backeljau T, Saarenmaa H, Ulenberg S. PESI - a taxonomic backbone for Europe. Biodivers Data J 2015:e5848. [PMID: 26491393 PMCID: PMC4609752 DOI: 10.3897/bdj.3.e5848] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 09/23/2015] [Indexed: 11/25/2022] Open
Abstract
Background Reliable taxonomy underpins communication in all of biology, not least nature conservation and sustainable use of ecosystem resources. The flexibility of taxonomic interpretations, however, presents a serious challenge for end-users of taxonomic concepts. Users need standardised and continuously harmonised taxonomic reference systems, as well as high-quality and complete taxonomic data sets, but these are generally lacking for non-specialists. The solution is in dynamic, expertly curated web-based taxonomic tools. The Pan-European Species-directories Infrastructure (PESI) worked to solve this key issue by providing a taxonomic e-infrastructure for Europe. It strengthened the relevant social (expertise) and information (standards, data and technical) capacities of five major community networks on taxonomic indexing in Europe, which is essential for proper biodiversity assessment and monitoring activities. The key objectives of PESI were: 1) standardisation in taxonomic reference systems, 2) enhancement of the quality and completeness of taxonomic data sets and 3) creation of integrated access to taxonomic information. New information This paper describes the results of PESI and its future prospects, including the involvement in major European biodiversity informatics initiatives and programs.
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Wang M, Stroiński A, Bourgoin T, Zhang Y. A new Asian genus of the tribe Elicini (Hemiptera: Fulgoromorpha: Tropiduchidae) with two new species from Vietnam. Zootaxa 2015; 4018:563-72. [PMID: 26624056 DOI: 10.11646/zootaxa.4018.4.5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Indexed: 11/04/2022]
Abstract
A new genus Connelicita gen. nov. with 2 new species (C. backyensis sp. nov. and C. haiphongensis sp. nov.) of Tropiduchidae Elicini from Vietnam are described and illustrated. The Chinese species C. lungchowensis (Chou et Lu, 1977) comb. nov. is transferred into this new genus from the genus Sassula (Nogodinidae). A key to species of the new genus distributed in North Vietnam and China (Guangxi) is provided.
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Ruggiero MA, Gordon DP, Orrell TM, Bailly N, Bourgoin T, Brusca RC, Cavalier-Smith T, Guiry MD, Kirk PM. Correction: A Higher Level Classification of All Living Organisms. PLoS One 2015; 10:e0130114. [PMID: 26068874 PMCID: PMC5159126 DOI: 10.1371/journal.pone.0130114] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Wang M, Bourgoin T, Zhang Y. A new genus of the tribe Parahiraciini (Hemiptera: Fulgoroidea: Issidae) from Southern China. Zootaxa 2015; 3957:77-84. [PMID: 26249055 DOI: 10.11646/zootaxa.3957.1.6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Indexed: 11/04/2022]
Abstract
A new genus Tetricodissus gen. nov. with one new species Tetricodissus pandlineus sp. nov. from Yunnan Province, China, is described and illustrated in the tribe Parahiraciini of planthopper family Issidae. Fortunia jianfenglingensis Chen, Zhang & Chang, 2014 is transferred into the genus Bardunia Stål, 1863. A key to genera of the tribe Parahiraciini is provided and the taxonomic position of the new genus in Parahiraciini is discussed.
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Ruggiero MA, Gordon DP, Orrell TM, Bailly N, Bourgoin T, Brusca RC, Cavalier-Smith T, Guiry MD, Kirk PM. A higher level classification of all living organisms. PLoS One 2015; 10:e0119248. [PMID: 25923521 PMCID: PMC4418965 DOI: 10.1371/journal.pone.0119248] [Citation(s) in RCA: 135] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 01/25/2015] [Indexed: 12/28/2022] Open
Abstract
We present a consensus classification of life to embrace the more than 1.6 million species already provided by more than 3,000 taxonomists' expert opinions in a unified and coherent, hierarchically ranked system known as the Catalogue of Life (CoL). The intent of this collaborative effort is to provide a hierarchical classification serving not only the needs of the CoL's database providers but also the diverse public-domain user community, most of whom are familiar with the Linnaean conceptual system of ordering taxon relationships. This classification is neither phylogenetic nor evolutionary but instead represents a consensus view that accommodates taxonomic choices and practical compromises among diverse expert opinions, public usages, and conflicting evidence about the boundaries between taxa and the ranks of major taxa, including kingdoms. Certain key issues, some not fully resolved, are addressed in particular. Beyond its immediate use as a management tool for the CoL and ITIS (Integrated Taxonomic Information System), it is immediately valuable as a reference for taxonomic and biodiversity research, as a tool for societal communication, and as a classificatory "backbone" for biodiversity databases, museum collections, libraries, and textbooks. Such a modern comprehensive hierarchy has not previously existed at this level of specificity.
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Gnezdilov VM, Le Cesne M, Soulier-Perkins A, Bourgoin T. New Guinean Issidae: description of new taxa in a poorly known island fauna (Hemiptera, Fulgoroidea). Zootaxa 2015; 3904:82-94. [PMID: 25660772 DOI: 10.11646/zootaxa.3904.1.4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Indexed: 11/04/2022]
Abstract
In the framework of the recent expedition results of "Our Planet Reviewed Papua-New-Guinea 2012-2013" we provide here the first Issidae (Hemiptera, Fulgoroidea) fauna review of New Guinea with the description of three new taxa: one new genus Papunega Gnezdilov et Bourgoin gen. nov. with two new species: Papunega magnifacies Gnezdilov et Le Cesne, sp. nov. (type species), Papunega armocula Gnezdilov et Soulier-Perkins, sp. nov. Tetrica fasciatifrons Melichar, 1906 is transferred to the genus Papugena gen. nov. to become Papugena fasciatifrons (Melichar, 1906) comb. nov. New Guinean Issidae fauna now includes 7 genera and 16 species.
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Gnezdilov VM, Bourgoin T, Soulier-Perkins A. A new genus of the tribe Caliscelini (Hemiptera, Fulgoroidea, Caliscelidae) from Vietnam. Zootaxa 2014; 3900:255-62. [PMID: 25543736 DOI: 10.11646/zootaxa.3900.2.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Indexed: 11/04/2022]
Abstract
A new genus Annamatissus Gnezdilov et Bourgoin gen. nov., including the new species, Annamatissus tami Gnezdilov et Soulier-Perkins sp. nov. is described in the family Caliscelidae from the Bi-Doup massif in Lam Dong Province of Vietnam. The new taxon represents only the second genus of the tribe Caliscelini known from Vietnam. An identification key to separate Gelastissus Kirkaldy from Annamatissus gen. nov. is provided together with a check list of the Caliscelidae of Vietnam and their distribution. New distribution data in Vietnam are given for Cicimora sicildia Emeljanov, 1998 and Gelastissus hokutonis (Matsumura, 1916).
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Bourgoin T, Wang RR, Asche M, Hoch H, Soulier-Perkins A, Stroiński A, Yap S, Szwedo J. From micropterism to hyperpterism: recognition strategy and standardized homology-driven terminology of the forewing venation patterns in planthoppers (Hemiptera: Fulgoromorpha). ZOOMORPHOLOGY 2014; 134:63-77. [PMID: 25705075 PMCID: PMC4326643 DOI: 10.1007/s00435-014-0243-6] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 09/05/2014] [Accepted: 09/08/2014] [Indexed: 11/30/2022]
Abstract
Following recent advances in the morphological interpretations of the tegmen basal cell margins in the Paraneoptera, a standardized and homology-driven groundplan terminology for tegmina types, structures and vein patterns in Hemiptera Fulgoromorpha, including fossils, is proposed. Each term is listed with a morphological definition, compared and linked to the main systems of planthopper forewing description that have been reviewed. The importance of a standardized and homology-driven terminology is stressed to enhance the quality of data in taxonomic descriptions and to strengthen phylogenetic morphological analysis results. When the interpretation of the origin of vein branches is render difficult, a three-step strategy for pattern recognition of the vein is proposed based on two principles: (1) vein forks are more informative than topology of the vein branches: a search for homologous areas, the nodal cells in particular, must first guide the recognition rather the number of branches of a vein, and (2) minimum of ad hoc evolutionary events should be invoked in the understanding of a modified vein pattern. Examples of some conflicting interpretations of venation patterns in planthoppers are discussed within different families for both extant and extinct taxa. For the first time, the concept of brachypterism is defined in a non-relative way independently from other structures, and the new one of hyperpterism is proposed; a reporting system is proposed for each of them.
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Hoch H, Bourgoin T, Stelbrink B, Wessel A. Small giants from Madagascan caves: autapomorphic giantism in the new cave-dwelling planthopperTsingya clarkeigen. nov., sp. nov. (Hemiptera: Fulgoroidea: Meenoplidae). J NAT HIST 2014. [DOI: 10.1080/00222933.2013.840399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Brożek J, Bourgoin T. The phylogenetic information carried by a new set of morphological characters in planthoppers: the internal mouthpart structures and test in the Cixiidae model (Hemiptera: Fulgoromorpha). ZOOMORPHOLOGY 2013; 132:403-420. [PMID: 24459326 PMCID: PMC3892704 DOI: 10.1007/s00435-013-0195-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 04/28/2013] [Accepted: 05/04/2013] [Indexed: 11/30/2022]
Abstract
Internal morphological structures of Cixiidae mouthparts are described and compared in various representatives of the Cixiidae and several other representatives of hemipterans. The morphological study shows that the mouthpart structures have not evolved uniformly and reveals the great disparity of these structures. Particularly, the connecting system of the mouthparts, localisation of salivary canal and shape of the mandibular and maxillar stylets provide together a new set of 17 new characters. A parsimonious analysis to evaluate the phylogenetic interest carried by these 17 selected characters shows that mouthpart structures have not evolved anarchically, but that they indeed carry some phylogenetic information that will be useful to be included in further morphological phylogenetic analysis.
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Brożek J, Bourgoin T. Morphology and distribution of the external labial sensilla in Fulgoromorpha (Insecta: Hemiptera). ZOOMORPHOLOGY 2013; 132:33-65. [PMID: 23420415 PMCID: PMC3570763 DOI: 10.1007/s00435-012-0174-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 08/24/2012] [Accepted: 08/30/2012] [Indexed: 11/30/2022]
Abstract
The present paper describes the sensory structures on the apical segment of the labium in fifteen fulgoromorphan families (Hemiptera: Fulgoromorpha), using the scanning electron microscope. Thirteen morphologically distinct types of sensilla are identified: five types of multiporous sensilla, four types of uniporous sensilla and four types of nonporous sensilla. Three subapical sensory organ types are also recognized, formed from one to several sensilla, each characteristic of a family group. Sensilla chaetica (mechanoreceptive sensilla) fall into three categories dependent on length and are numerous and evenly distributed on the surface of the labium except where they occur on specialized sensory fields. The planthopper morphological ground plan is represented by two apical pair of sensory fields (dorsal and ventral) on which 11 dorsal pairs of sensilla (10 peg-like pairs + 1 specialized pair dome or cupola-like) and 2 ventral pairs of sensilla basiconica occur. Two main patterns (cixiid and issid) together with more specialized ones (derbid, lophopid, flatid and fulgorid) are reported. Disparity and diversity of the sensory structures are analyzed from a taxonomic and functional perspective. A gustatory function is provided for several chemoreceptive labial sensilla, as in the antennal flagellum sensilla in some other Hemiptera. This represents a more recently evolved function for the planthopper labium. Finally, further lines of study are suggested for future work on the phylogeny of the group based on the studied characters.
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Wang RR, Wan XY, Liang AP, Bourgoin T. Ultrastructure of sensory equipments on the heads ofKallitaxila granulata(Stål) (Hemiptera: Fulgoromorpha: Tropiduchidae). Microsc Res Tech 2012; 75:1659-65. [DOI: 10.1002/jemt.22113] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 07/13/2012] [Indexed: 11/06/2022]
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Wheeler Q, Bourgoin T, Coddington J, Gostony T, Hamilton A, Larimer R, Polaszek A, Schauff M, Solis MA. Nomenclatural benchmarking: the roles of digital typification and telemicroscopy. Zookeys 2012; 209:193-202. [PMID: 22859888 PMCID: PMC3406476 DOI: 10.3897/zookeys.209.3486] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Accepted: 07/13/2012] [Indexed: 11/12/2022] Open
Abstract
Nomenclatural benchmarking is the periodic realignment of species names with species theories and is necessary for the accurate and uniform use of Linnaean binominals in the face of changing species limits. Gaining access to types, often for little more than a cursory examination by an expert, is a major bottleneck in the advance and availability of biodiversity informatics. For the nearly two million described species it has been estimated that five to six million name-bearing type specimens exist, including those for synonymized binominals. Recognizing that examination of types in person will remain necessary in special cases, we propose a four-part strategy for opening access to types that relies heavily on digitization and that would eliminate much of the bottleneck: (1) modify codes of nomenclature to create registries of nomenclatural acts, such as the proposed ZooBank, that include a requirement for digital representations (e-types) for all newly described species to avoid adding to backlog; (2) an "r" strategy that would engineer and deploy a network of automated instruments capable of rapidly creating 3-D images of type specimens not requiring participation of taxon experts; (3) a "K" strategy using remotely operable microscopes to engage taxon experts in targeting and annotating informative characters of types to supplement and extend information content of rapidly acquired e-types, a process that can be done on an as-needed basis as in the normal course of revisionary taxonomy; and (4) creation of a global e-type archive associated with the commissions on nomenclature and species registries providing one-stop-shopping for e-types. We describe a first generation implementation of the "K" strategy that adapts current technology to create a network of Remotely Operable Benchmarkers Of Types (ROBOT) specifically engineered to handle the largest backlog of types, pinned insect specimens. The three initial instruments will be in the Smithsonian Institution(Washington, DC), Natural History Museum (London), and Museum National d'Histoire Naturelle (Paris), networking the three largest insect collections in the world with entomologists worldwide. These three instruments make possible remote examination, manipulation, and photography of types for more than 600,000 species. This is a cybertaxonomy demonstration project that we anticipate will lead to similar instruments for a wide range of museum specimens and objects as well as revolutionary changes in collaborative taxonomy and formal and public taxonomic education.
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Song ZS, Bourgoin T, Liang AP. Review of the oriental monotypic genus pibrocha kirkaldy (hemiptera, fulgoromorpha, fulgoridae, dorysarthrinae). Zookeys 2011:1-13. [PMID: 22140330 PMCID: PMC3208430 DOI: 10.3897/zookeys.132.1319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Accepted: 09/12/2011] [Indexed: 11/29/2022] Open
Abstract
The monotypic genus Pibrocha Kirkaldy, 1902, known only from Sri Lanka in the Oriental region, is closely related to Dorysarthrus Puton, 1895 from southwestern Asia and northern Africa (Palaearctic region). The genusis revised to include a first description of the male genital structures and a discussion of relationships between Pibrocha, Dorysarthrus and Dichoptera Spinola, 1839. A diagnostic key to the three genera and photos of their type species are provided for better comparison in these taxa. Pibrocha is assigned tentatively from Dictyopharidae to the subfamily Dorysarthrinae (Fulgoridae).
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Attié M, Bourgoin T, Veslot J, Soulier‐Perkins A. Patterns of trophic relationships between planthoppers (Hemiptera: Fulgoromorpha) and their host plants on the Mascarene Islands. J NAT HIST 2008. [DOI: 10.1080/00222930802106963] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ceotto P, Kergoat GJ, Rasplus JY, Bourgoin T. Molecular phylogenetics of cixiid planthoppers (Hemiptera: Fulgoromorpha): new insights from combined analyses of mitochondrial and nuclear genes. Mol Phylogenet Evol 2008; 48:667-78. [PMID: 18539050 DOI: 10.1016/j.ympev.2008.04.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2007] [Revised: 03/19/2008] [Accepted: 04/19/2008] [Indexed: 11/28/2022]
Abstract
The planthopper family Cixiidae (Hemiptera: Fulgoromorpha) comprises approximately 160 genera and 2000 species divided in three subfamilies: Borystheninae, Bothriocerinae and Cixiinae, the later with 16 tribes. The current paper represents the first attempt to estimate phylogenetic relationships within Cixiidae based on molecular data. We use a total of 3652bp sequence alignment of four genes: the mitochondrial coding genes Cytochrome c Oxidase subunit 1 (Cox1) and Cytochrome b (Cytb), a portion of the nuclear 18S rDNA and two non-contiguous portions of the nuclear 28S rDNA. The phylogenetic relationships of 72 terminal specimens were reconstructed using both maximum parsimony and Bayesian inference methods. Through the analysis of this empirical dataset, we also provide comparisons among different a priori partitioning strategies and the use of mixture models in a Bayesian framework. Our comparisons suggest that mixture models overcome the benefits obtained by partitioning the data according to codon position and gene identity, as they provide better accuracy in phylogenetic reconstructions. The recovered maximum parsimony and Bayesian inference phylogenies suggest that the family Cixiidae is paraphyletic in respect with Delphacidae. The paraphyly of the subfamily Cixiinae is also recovered by both approaches. In contrast to a morphological phylogeny recently proposed for cixiids, subfamilies Borystheninae and Bothriocerinae form a monophyletic group.
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Ouvrard D, Bourgoin T, Campbell BC. Comparative morphological assessment of the psyllid pleuron (Insecta, Hemiptera, Sternorrhyncha). J Morphol 2002; 252:276-90. [PMID: 11948675 DOI: 10.1002/jmor.1105] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A unique set of morphological characters based on the hemipteran (sensu lato) thorax are used to define the pleuron of Psylloidea. New external and internal topographical descriptions of pleurites of all three thoracic segments are provided based on observations of specimens from various genera representing the current taxonomic arrangement of Psylloidea. Variations in propleurite morphology and the anteroventral angle of the episternum among taxa are clarified. The mesothoracic pleural sulcus is found to be a distinct groove formed by the deep fossa of the pleural apophysis and is not a secondary structure, as assigned by previous authors. A newly discovered internal apodeme of the metathoracic trochantin and a serially homologous structure in the mesothorax isolate the trochantinal territory of the second segment. The metathoracic pleural sulcus appears to be pressed against the ventral edge of the metepimeron, as previously described for the mesothorax of certain species of other insects having a strongly developed meron. Use of morphological interpretations and newly discovered apodemes to assess primary homology of structures for phylogenetic and taxonomic studies is discussed. A glossary of standardized morphological terms for thoracic structures of non-heteropteran Hemiptera based on this study and other recent and former dissertations on the insect thorax is provided.
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Ouvrard D, Campbell BC, Bourgoin T, Chan KL. 18S rRNA secondary structure and phylogenetic position of Peloridiidae (Insecta, hemiptera). Mol Phylogenet Evol 2000; 16:403-17. [PMID: 10991793 DOI: 10.1006/mpev.2000.0797] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A secondary structure model for 18S rRNA of peloridiids, relict insects with a present-day circumantarctic distribution, is constructed using comparative sequence analysis, thermodynamic folding, a consensus method using 18S rRNA models of other taxa, and support of helices based on compensatory substitutions. Results show that probable in vivo configuration of 18S rRNA is not predictable using current free-energy models to fold the entire molecule concurrently. This suggests that refinements in free-energy minimization algorithms are needed. Molecular phylogenetic datasets were created using 18S rRNA nucleotide alignments produced by CLUSTAL and rigorous interpretation of homologous position based on certain secondary substructures. Phylogenetic analysis of a hemipteran data matrix of 18S rDNA sequences placed peloridiids sister to Heteroptera. Resolution of affiliations between the three main euhemipteran lineages was unresolved. The peloridiid 18S RNA model presented here provides the most accurate template to date for aligning homologous nucleotides of hemipteran taxa. Using folded 18S rRNA to infer homology of character as morpho-molecular structures or nucleotides and scoring particular sites or substructures is discussed.
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Dejean A, Gibernau M, Bourgoin T. A new case of trophobiosis between ants and Heteroptera. COMPTES RENDUS DE L'ACADEMIE DES SCIENCES. SERIE III, SCIENCES DE LA VIE 2000; 323:447-54. [PMID: 10879292 DOI: 10.1016/s0764-4469(00)00156-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Despite the large specific diversity of equatorial rainforests, Caternaultiella rugosa (Heteroptera; Plataspidae) was only noted on two euphorbiaceous trees (Bridelia micrantha and B. grandis) and was attended by two ant species, Camponotus brutus (Formicinae) and Myrmicaria opaciventris (Myrmicinae). We recorded semiochemical (attending workers palpated the dorsal abdominal glands of the nymphs) and semantic signals (nymphs ready to excrete honeydew raised their bodies; they alternated the extrusion and withdrawal of the first honeydew droplet when the workers did not immediately absorb the honeydew). Cat. rugosa was recorded in carton pavilions built by the ants at the base of the tree trunks. During proliferations of the population, clusters of nymphs and adults developed outside pavilions. In the latter case, M. opaciventris workers did not modify their rhythm of activity in order to attend these clusters, while Camp. brutus workers, normally nocturnal, attended them day and night.
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Dejean A, Bourgoin T, Orivel J. Ant Defense of Euphyonarthex phyllostoma (Homoptera: Tettigometridae) during Trophobiotic Associations1. Biotropica 2000. [DOI: 10.1111/j.1744-7429.2000.tb00453.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Dejean A, Bourgoin T, Orivel J. Ant Defense of Euphyonarthex phyllostoma (Homoptera: Tettigometridae) during Trophobiotic Associations1. Biotropica 2000. [DOI: 10.1646/0006-3606(2000)032[0112:adoeph]2.0.co;2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bourgoin T, Steffen-Campbell J, Campbell B. Molecular Phylogeny of Fulgoromorpha (Insecta, Hemiptera, Archaeorrhyncha). The Enigmatic Tettigometridae: Evolutionary Affiliations and Historical Biogeography. Cladistics 1997; 13:207-224. [DOI: 10.1111/j.1096-0031.1997.tb00316.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Huang J, Bourgoin T. The planthopper genusTrypetimorpha: systematics and phylogenetic relationships (Hemiptera: Fulgoromorpha: Tropiduchidae). J NAT HIST 1993. [DOI: 10.1080/00222939300770351] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Bourgoin T, Huang J. Comparative morphology of female genitalia and the copulatory mechanism in Trypetimorphini (Hemiptera, Fulgoromorpha, Tropiduchidae). J Morphol 1991; 207:149-155. [DOI: 10.1002/jmor.1052070205] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Huettel WN, Francl LJ, Henn A, Bourgoin T. Plant-parasitic nematodes in maine agricultural soils. J Nematol 1990; 22:745-749. [PMID: 19287791 PMCID: PMC2619110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
In a survey of plant-parasitic nematodes associated with agricultural crops in nine Maine counties, 744 soil samples from 26 potential host plants were analyzed between November 1987 and January 1989. The most commonly encountered nematode genus was Pratylenchus, occurring in 85% of the samples from most crops, except blueberries and onions. Pratylenchus penetrans and P. crenatus were found commonly as species mixtures, with P. penetrans composing 40-80% of the mixture. Meloidogyne hapla was encountered in 16% of the samples in four counties, generally in potato rotations. Other nematodes encountered were Aphelenchoides spp., Criconemella curvature, Ditylenchus spp., Helicotylenchus pseudorobustus, H. digonicus, Heterodera trifolii, Paratylenchus projectus, Trichodorus spp., Tylenchorhynchus maximus, and Xiphinema americanum. Potato fields were the most heavily sampled and thus weighted the statewide results.
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