Number of results to display per page
Search Results
22. Review of the Afrotropical subgenus Disneyempis (Diptera: Empididae)
- Creator:
- Daugeron, Christophe
- Type:
- article, model:article, and TEXT
- Subject:
- taxonomy, Diptera, Empididae, Empis, Disneyempis, new species, phylogeny, monophyly, and Afrotropical region
- Language:
- English
- Description:
- The Afrotropical subgenus Disneyempis Smith of the genus Empis L. is redescribed and redefined on the basis of three synapomorphies, namely labrum lengthened, male eyes more or less broadly separated on frons with all ommatidia of equal size, female abdomen with bluish to purplish metallic reflections on terga 2-5. At present, the subgenus comprises six species: E. (D.) hirsutipennis Smith as type species, E. (D.) jacksoni Smith, E. (D.) argentea sp, n., E. (D.) spinifemorata sp. n., E. (D.) proboprocera sp. n. and one unnamed species E. (D.) sp. 1. All species are described [except E. (D.) sp. 1] and keyed. The subgenus has a tropical African geographical range including Cameroon, Democratic Republic of Congo (formerly Zaire), Republic of Congo and Gabon.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
23. Review of the Rhopalothylacidae Guiart, 1935 (Cestoda: Trypanorhyncha), with a description of the adult of Pintneriella musculicola Yamaguti, 1934 and a redescription of P. gymnorhynchoides (Guiart, 1935) comb. n.
- Creator:
- Beveridge, Ian and Campbell, Ronald A.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Cestoda, Trypanorhyncha, Rhopalothylacidae, Clujia, Pintneriella, Rhopalothylax, taxonomy, morphology, and phylogeny
- Language:
- English
- Description:
- The family Rhopalothylacidae (Cestoda: Trypanorhyncha) is reviewed. The type species, Rhopalothylax gymnorhynchoides Guiart, 1935, is redescribed from the type specimens and belongs within the genus Pintneriella Yamaguti, 1934, previously described only from the plerocercus. Rhopalothylax therefore becomes a junior synonym of Pintneriella. The adult of Pintneriella musculicola Yamaguti, 1934 is described for the first time, from the shark Carcharias taurus Rafinesque from Australia. Pintneriella is characterised by two bothridia, a typical heteroacanthous armature, a unique, bipartite external seminal vesicle and a uterus deviated porally, terminating at a uterine pore. It belongs within the Heteracanthoidea but is distinguishable both from the Eutetrarhynchidae and the Gilquiniidae, the two families which it most closely resembles. Cladistic analyses align Pintneriella within the clade containing the families Gilquiniidae, Gymnorhynchidae and Molicolidae rather than with the Eutetrarhynchidae. The family Rhopalothylacidae is therefore retained provisionally to accommodate Pintneriella within the Heteracanthoidea. The second genus of the Rhopalothylacidae, Clujia Guiart, 1935, is unrecognisable from its description and cannot be redescribed from its holotype. It is therefore considered a genus inquirendum.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
24. Revision and hypothetical phylogenetic analysis of the species of the New World genus Ataeniopsis (Coleoptera: Aphodiinae: Eupariini)
- Creator:
- Stebnicka, Zdisława T.
- Type:
- article, model:article, and TEXT
- Subject:
- Coleoptera, Scarabaeidae, Aphodiinae, Eupariini, Ataeniopsis, new species, new combinations, taxonomy, phylogeny, distribution, and New World
- Language:
- English
- Description:
- The New World genus Ataeniopsis Petrovitz, 1973 is revised. Fifteen species are recognized including three new species: Ataeniopsis carupanoi sp. n. from Venezuela, A. jaltipani sp. n. from Mexico and A. vinacoensis sp. n. from Argentina. Lectotype of A. haroldi (Steinheil, 1872) is designated, the name of type species A. notabilis Petrovitz, 1973 is reestablished, five species are given in a new combination. The taxa are diagnosed, keyed and illustrated, and biological information and distribution data summarized following the species descriptions. A hypothetical phylogenetic analysis of Ataeniopsis based on cladistic analysis is presented.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
25. Revision of the genera Anisarthrocera, Rhampholyssa and Rhampholyssodes, description of the new genus Somalarthrocera and a phylogenetic study of the tribe Cerocomini (Coleoptera: Meloidae)
- Creator:
- Turco, Federica and Bologna , Marco A.
- Type:
- article, model:article, and TEXT
- Subject:
- Meloidae, blister beetles, Cerocomini, Anisarthrocera, Rhampholyssa, Rhampholyssodes, Somalarthrocera, taxonomy, new genus, new species, phylogeny, bionomics, faunistics, and biogeography
- Language:
- English
- Description:
- Four genera of the blister beetle tribe Cerocomini are revised, including the new genus Somalarthrocera. The genera Rhampholyssa Kraatz, 1863 and Somalarthrocera comprise two species each, whereas Anisarthrocera Semenow, 1895 and Rhampholyssodes Kaszab, 1983 are monotypic. S. savanicola sp. n. from Kenya is described, S. semirufa (Fairmaire, 1882) comb. n. is proposed, as well as new synonymy: A. batesi (Marseul, 1872) = A. batesi villiersi Kaszab, 1968. Phylogenetic relationships among the six genera of the tribe are defined by a cladistic analysis, which indicates three clades, one basal, represented by the genus Cerocoma Geoffroy, 1762, the second including Anisarthrocera and the pair Rhampholyssa and Rhampholyssodes, and the third including Diaphorocera Heyden, 1863 and Somalarthrocera. Bionomical information available for the four revised genera is summarised. Keys to these genera and to the species of the two non-monotypic genera are presented, as well as diagnoses of genera and species and catalogue of localities. Anisarthrocera is distributed in the northern Persian Gulf, Rhampholyssa in the Turanian depression, Rhampholyssodes is endemic to the eastern Arabian Peninsula, and Somalarthrocera is distributed in Somalia and Kenya. A brief biogeographical analysis of this primarily Palaearctic tribe is also presented.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
26. Revision of the Oriental species of the genus Gnypetalia new status (Coleoptera: Staphylinidae: Aleocharinae), with a discussion of its phylogenetic relationships
- Creator:
- Paśnik, Grzegorz
- Type:
- article, model:article, and TEXT
- Subject:
- Coleoptera, Staphylinidae, Aleocharinae, Gnypetalia, new species, new combinations, taxonomy, phylogeny, and Oriental region
- Language:
- English
- Description:
- The subgenus Gnypetalia Cameron, 1939 is redefined and raised to the genus rank. Eleven valid species are recognised in the genus, six of which are described as new: Gnypetalia armata sp. n. (Solomon Islands), G. cuccodoroi sp. n. (Philippines: Luzon), G. insularis sp. n. (Solomon Islands), G. luzonica sp. n. (Philippines: Luzon, Palawan), G. nitida sp. n. (Indonesia: Sulawesi) and G. penrisseni sp. n. (Malaysia: Sarawak). One new synonym is established: Gnypetalia parva Cameron, 1950 = Ischnopoda (Caliusa) finitima Pace, 1998 syn. n. Five species are given in new combination: Gnypetalia indica (Cameron, 1939) comb. n (= Gnypeta (Gnypetalia) indica), Gnypetalia parva (Cameron, 1950) comb. n. [= Gnypeta (Gnypetalia) parva], Gnypetalia rougemontiana (Pace, 1986) comb. n [= Tachyusa (Caliusa) rougemontiana], Gnypetalia song (Pace, 1990) comb. n. [= Tachyusa (Caliusa) song] and Gnypetalia thoracica (Fauvel, 1879) comb. n. (= Tachyusa thoracica). Lectotype is designated for Gnypeta indica Cameron, 1939. The taxa are diagnosed, keyed and illustrated. The phylogeny of the aleocharine genus Gnypetalia is analysed using cladistic methods. The monophyly of Gnypetalia is confirmed and three major monophyletic species group are recognised.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
27. The First United Workshop on Microsporidia from Invertebrate and Vertebrate Hosts
- Creator:
- Weiss, Louis M.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Microsporidia, taxonomy, phylogeny, meetings, differentiation, genome, insect pathogens, fish pathogens, and microsporidiosis
- Language:
- English
- Description:
- The phylum Microsporidia is a large group of parasitic unicellular eukaryotes that infect a wide range of invertebrate and vertebrate taxa. These organisms are significant human and veterinary pathogens with impacts on medicine, agriculture and aquaculture. Scientists working on these pathogens represent diverse disciplines that have had limited opportunities for detailed interactions. A NATO Advanced Research Workshop 'Emergent Pathogens in the 21st Century: First United Workshop on Microsporidia from Invertebrate and Vertebrate Hosts' was held July 12-15, 2004 at the Institute of Parasitology of the Academy of Sciences of the Czech Republic to bring together experts in insect, fish, veterinary and human microsporidiosis for the exchange of information on these pathogens. At this meeting, discussions were held on issues related to taxonomy and phylogeny. It was recognized that microsporidia are related to fungi, but the strong opinion of the participants was that the International Code of Zoological Nomenclature should continue to be applied for taxonomic descriptions of the Microsporidia and that they be treated as an independent group emerging from a paraphyletic fungi. There continues to be exponential growth in the pace and volume of research on these ubiquitous intracellular protists. The small genomes of these organisms and the reduction in the size of many of their genes are of interest to many disciplines. Many microsporidia are dimorphic and the mechanisms underlying these morphologic changes remain to be elucidated. Epidemiologic studies to clarify the source of human microsporidiosis and ecologic studies to understand the multifaceted relationship of the Microsporidia and their hosts are important avenues of investigation. Studies on the Microsporidia should prove useful to many fields of biologic investigation.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
28. The phylogeny of marine and freshwater species of the genus Chloromyxum Mingazzini, 1890 (Myxosporea: Bivalvulida) based on small subunit ribosomal RNA gene sequences
- Creator:
- Fiala, Ivan and Dyková, Iva
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Myxosporea, Chloromyxum, SSU rDNA, phylogeny, and taxonomy
- Language:
- English
- Description:
- The small subunit ribosomal RNA gene (SSU rDNA) of two freshwater and one marine species of the genus Chloromyxum Mingazzini, 1890 were sequenced. The SSU rDNA trees obtained show the phylogenetic position of the marine species Chloromyxum leydigi Mingazzini, 1890 to be at the base of the freshwater clade, being well supported by a high bootstrap value. Chloromyxum cyprini Fujita, 1927 is closely related to Chloromyxum truttae Léger, 1906 and they represent a sister branch to raabeia sp., Myxidium sp. and Myxidium truttae Léger, 1930. Chloromyxum legeri Tourraine, 1931 is in a position ancestral to Myxidium lieberkuehni Bütschli, 1882 and Sphaerospora oncorhynchi Kent, Whitaker et Margolis, 1993. Three newly sequenced species of the genus Chloromyxum represent three separate lineages within the myxosporean tree and do not support the monophyly of this genus.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
29. The Tachyusa coarctata species group revisited: Phylogenetic relationships and a new species (Coleoptera: Staphylinidae: Aleocharinae)
- Creator:
- Paśnik, Grzegorz
- Type:
- article, model:article, and TEXT
- Subject:
- Coleoptera, Staphylinidae, Aleocharinae, Tachyusa, coarctata-group, new species, taxonomy, and phylogeny
- Language:
- English
- Description:
- The Tachyusa coarctata species group is revised. The species group is defined on the basis of the distinctly asperate punctation on elytra, the dense punctation on tergites III-V with interstices between punctures 1.5-2.0 times their diameter, and the dense, subrecumbent pubescence on the abdomen. The T. coarctata species group is composed of twenty three species restricted in occurrence to the Holarctic and Africa, including one new species described from Iran: Tachyusa frischi sp.n. A revised key to the species in this group is provided. An analysis of the phylogeny of the Tachyusa coarctata species group based on cladistic methods is presented and the phylogenetic relationships among species are discussed.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
30. Three new species of Pseudodactylogyrus (Monogenea: Pseudodactylogyridae) from Australian eels
- Creator:
- Ogawa, Kazuo, Iwashita, Makoto, Hayward, Craig J, and Kurashima, Akira
- Format:
- electronic, počítač, and online zdroj
- Type:
- model:article and TEXT
- Subject:
- morfologie (biologie), fylogeneze, evoluce (biologie), morphology (biology), phylogeny, evolution (biology), taxonomy, ITS2 rDNA, Anguilla, 2, and 59
- Language:
- English
- Description:
- Three species of Pseudodactylogyrus Gusev, 1965 (Monogenea: Pseudodactylogyridae) were collected from the gills of Anguilla reinhardtii Steindachner and A. australis Richardson from several localities in Australia and eels imported to Japan from Australia. Pseudodactylogyrus gusevi sp. n. from A. reinhardtii (type host) and A. australis in Queensland, Australia is most similar to P. bini (Kikuchi, 1929), but can be differentiated by the shorter male copulatory tube, heavy sclerotisation of the vaginal tube and the presence of a small projection of the supplementary piece of the hamulus. Pseudodactylogyrus rohdei sp. n. from A. australis (type host) in Queensland, Australia is most similar to P. anguillae (Yin et Sproston, 1948), but differs in the possession of a longer cement gland and the presence of a small projection on the supplementary piece of the hamulus. Pseudodactylogyrus bini sensu Gusev, 1965 and P. anguillae sensu Gusev, 1965 are synonymised with P. gusevi sp. n. and P. rohdei sp. n., respectively. Pseudodactylogyrus mundayi sp. n. from A. australis, originating in Tasmania, Australia and sent alive to Japan, is most similar to P. kamegaii Iwashita, Hirata et Ogawa, 2002, from which it can be discriminated by the shorter male copulatory tube and the shorter vaginal tube. Dactylogyrus bialatus Wu, Wang et Jian, 1988 from Synechogobius ommaturus (Richardson) (Gobiidae) is transferred to Pseudodactylogyrus as P. bialatus comb. n. A phylogenetic tree based on the ITS2 region of six species of Pseudodactylogyrus including P. gusevi and P. mundayi shows that P. haze from a goby diverged first, and that species from eels are monophyletic, forming three lineages differing by their zoogeographical distribution. With the three new species and one new combination proposed in this paper, Pseudodactylogyrus is now comprised of eight species infecting anguillid and gobiid fish, and a key to species is presented., Kazuo Ogawa, Makoto Iwashita, Craig J. Hayward, Akira Kurashima., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
- « Previous
- Next »
- 1
- 2
- 3
- 4