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Pedro Marcos Linardi - One of the best experts on this subject based on the ideXlab platform.
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A New Species of Tunga (Siphonaptera: Tungidae) Parasitizing Cattle from Brazil
Journal of medical entomology, 2013Co-Authors: Daniel Moreira De Avelar, Elias Jorge Facury Filho, Pedro Marcos LinardiAbstract:Tunga hexalobulata (Siphonaptera: Tungidae), new species of tungid sand flea belonging to the penetrans group, is described with illustrations of adult female parasitizing Bos indicus (L., 1758) from Brazil. It differs from the 12 other known species of Tunginae by the presence of six anterior humps in the neosome. It also can be differentiated from other species of the penetrans group by lesser size of the neosome, presence of three posterodorsally bristles in antennal segment II, and the extension of the posterior arm of the preoral internal sclerotization.
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seasonality and prevalence rates of steinina sp eugregarinorida actinocephalidae in ctenocephalides felis felis Siphonaptera pulicidae from dogs captured in belo horizonte minas gerais brazil
Journal of Medical Entomology, 2008Co-Authors: Daniel Moreira De Avelar, Pedro Marcos LinardiAbstract:In total, 1,500 specimens (448 males and 1,052 females) of the flea Ctenocephalides felis felis (Bouche) (Siphonaptera: Pulicidae) were collected over a period of a year from 150 dogs captured by the Centro de Controle de Zoonoses de Belo Horizonte, Minas Gerais, Brazil. Microscopic examination of the dissected fleas revealed that 180 fleas were infected with a species of gregarine that was subsequently identified as a member of the genus Steinina. The relative abundances, prevalence rates, and seasonal variation of the different developmental stages of this endoparasite in C. felis felis were determined. Both gamonts and gametocysts presented significant seasonal variation.
Ahid, Sílvia Maria Mendes - One of the best experts on this subject based on the ideXlab platform.
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Parasitismo por Ctenocephalides felis felis em ovinos deslanados em Pendências, Rio Grande do Norte
Revista Brasileira de Higiene e Sanidade Animal, 2014Co-Authors: Moura, Gabriela Hemylin Ferreira, Lima, Mikael Almeida, Gadelha, Ivana Cristina Nunes, Zuliete Aliona Araújo De ,souza Fonseca, Pereira, Josivania Soares, Ahid, Sílvia Maria MendesAbstract:O parasitismo por pulgas em pequenos ruminantes pode interferir severamente na sanidade do rebanho, pois os pulicidae podem transmitir agentes patogênicos, favorecer a infecção por cestódeos e o hematofagismo, causando lesões de pele diminuindo o valor econômico do couro. Objetivou-se relatar o parasitismo por Siphonaptera da família Pulicidae em ovinos deslanados em Pendências, Rio Grande do Norte (RN), Brasil. Todos os ovinos inspecionados estavam parasitados por Ctenocephalides felis felis em diferentes graus de infestação e estágios de vida. Fato este, constitui um importante problema sanitário na região semiárida do Rio Grande do Norte
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Parasitismo por Ctenocephalides felis felis em ovinos deslanados em Pendências, Rio Grande do Norte
2014Co-Authors: Moura, Gabriela Hemylin Ferreira, Lima, Mikael Almeida, Gadelha, Ivana Cristina Nunes, Zuliete Aliona Araújo De ,souza Fonseca, Pereira, Josivania Soares, Ahid, Sílvia Maria MendesAbstract:The flea parasitism in small ruminants can severely interfere with the health of the herd, the Pulicidae can transmit pathogens agents promote infection by cestodes and the hematophagism cause skin wounds reducing the economic value of the leather. The aim was to report the parasitism by Siphonaptera of the Pulicidae family in hair sheep Pendencias, Rio Grande do Norte (RN), Brazil. the sheeps inspected 33% (25) were infected by Ctenocephalides felis felis in different infestation degrees and stages of the life, with no distinction of sex and age. This indeed is an important health problem in the semiarid west region of Rio Grande do NorteO parasitismo por pulgas em pequenos ruminantes pode interferir severamente na sanidade do rebanho, pois os pulicidae podem transmitir agentes patogênicos, favorecer a infecção por cestódeos e o hematofagismo, causando lesões de pele diminuindo o valor econômico do couro. Objetivou-se relatar o parasitismo por Siphonaptera da família Pulicidae em ovinos deslanados em Pendências, Rio Grande do Norte (RN), Brasil. Todos os ovinos inspecionados estavam parasitados por Ctenocephalides felis felis em diferentes graus de infestação e estágios de vida. Fato este, constitui um importante problema sanitário na região semiárida do Rio Grande do Norte
Gurovich Yamila - One of the best experts on this subject based on the ideXlab platform.
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Pulgas (Insecta: Siphonaptera) asociadas al marsupial neotropical amenazado “monito del monte” (Dromiciops gliroides Microbiotheria: Microbiotheriidae), en su población más austral de la Argentina
'Sociedad Argentina para el Estudio de los Mamiferos', 2018Co-Authors: Sánchez, Juliana Patricia, Gurovich YamilaAbstract:Dromiciops, nocturnal marsupial genus endemic to the temperate forests of southern South America, is the only living representative of the Order Microbiotheria. Here we study the Siphonapteran fauna of Dromiciops gliroides ?monito del monte? from Los Alerces National Park, Chubut Province. We also present the southernmost record for Argentina of the association between D. gliroides and the fleas Plocopsylla (Schrammapsylla) diana and Chiliopsylla allophyla allophyla, registering for the first time both Siphonaptera in Chubut Province. Our result extends and adds to current parasite biodiversity for Patagonia and contributes new information about the ecology of D. gliroides in southern Argentina.Dromiciops gliroides es un marsupial nocturno endémico de los bosques templados de Sudamérica y el único representante viviente del Orden Microbiotheria. En este trabajo estudiamos la fauna de sifonápteros del “monito del monte” del Parque Nacional Los Alerces, Chubut. Además, damos a conocer el registro más austral para la Argentina de la asociación entre D. gliroides y las pulgas Plocopsylla (Schrammapsylla) diana y Chiliopsylla allophyla allophyla, registrándose además por primera vez ambos sifonápteros en la provincia del Chubut. Nuestros resultados amplían el conocimiento sobre la biodiversidad de la región patagónica y contribuyen al conocimiento de la ecología de D. gliroides
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Pulgas (Insecta: Siphonaptera) asociadas al marsupial neotropical amenazado “monito del monte” (Dromiciops gliroides Microbiotheria: Microbiotheriidae), en su población más austral de la Argentina
'Sociedad Argentina para el Estudio de los Mamiferos', 2018Co-Authors: Sánchez, Juliana Patricia, Gurovich YamilaAbstract:Dromiciops, nocturnal marsupial genus endemic to the temperate forests of southern South America, is the only living representative of the Order Microbiotheria. Here we study the Siphonapteran fauna of Dromiciops gliroides ?monito del monte? from Los Alerces National Park, Chubut Province. We also present the southernmost record for Argentina of the association between D. gliroides and the fleas Plocopsylla (Schrammapsylla) diana and Chiliopsylla allophyla allophyla, registering for the first time both Siphonaptera in Chubut Province. Our result extends and adds to current parasite biodiversity for Patagonia and contributes new information about the ecology of D. gliroides in southern Argentina.Dromiciops gliroides es un marsupial nocturno endémico de los bosques templados de Sudamérica y el único representante viviente del Orden Microbiotheria. En este trabajo estudiamos la fauna de sifonápteros del “monito del monte” del Parque Nacional Los Alerces, Chubut. Además, damos a conocer el registro más austral para la Argentina de la asociación entre D. gliroides y las pulgas Plocopsylla (Schrammapsylla) diana y Chiliopsylla allophyla allophyla, registrándose además por primera vez ambos sifonápteros en la provincia del Chubut. Nuestros resultados amplían el conocimiento sobre la biodiversidad de la región patagónica y contribuyen al conocimiento de la ecología de D. gliroides.Fil: Sánchez, Juliana Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia del Noroeste de la Provincia de Buenos Aires. Universidad Nacional del Noroeste de la Provincia de Buenos Aires. Centro de Investigaciones y Transferencia del Noroeste de la Provincia de Buenos Aires; ArgentinaFil: Gurovich, Yamila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina. University of New South Wales; Australi
Michael F. Whiting - One of the best experts on this subject based on the ideXlab platform.
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fleas Siphonaptera are cretaceous and evolved with theria
Molecular Phylogenetics and Evolution, 2015Co-Authors: Qiyun Zhu, Michael F. Whiting, Michael W Hastriter, Katharina DittmarAbstract:Abstract Fleas (order Siphonaptera) are highly-specialized, diverse blood-feeding ectoparasites of mammals and birds with an enigmatic evolutionary history and obscure origin. We here present a molecular phylogenetic study based on a comprehensive taxon sampling of 259 flea taxa, representing 16 of the 18 extant families of this order. A Bayesian phylogenetic tree with strong nodal support was recovered, consisting of seven sequentially derived lineages with Macropsyllidae as the earliest divergence, followed by Stephanocircidae. Divergence times of flea lineages were estimated based on fossil records and host specific associations to bats (Chiroptera), suggesting that the common ancestor of extant Siphonaptera diversified during the Cretaceous. However, most of the intraordinal divergence into extant lineages took place after the K-Pg boundary. Ancestral states of host association and biogeographical distribution were reconstructed, suggesting with high likelihood that fleas originated in the southern continents (Gondwana) and migrated from South America to their extant distributions in a relatively short time frame. Theria (placental mammals and marsupials) represent the most likely ancestral host group of extant Siphonaptera, with marsupials occupying a more important role than previously assumed. Major extant flea families evolved in connection to post K-Pg diversification of Placentalia. The association of fleas with monotremes and birds is likely due to later secondary host association. These results suggest caution in casually interpreting recently discovered Mesozoic fossil “dinosaur fleas” of Northeast Asia as part of what we currently consider Siphonaptera.
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fleas Siphonaptera are cretaceous and evolved with theria
bioRxiv, 2015Co-Authors: Qiyun Zhu, Michael F. Whiting, Michael W Hastriter, Katharina DittmarAbstract:Fleas (order Siphonaptera) are highly-specialized, diverse blood-feeding ectoparasites of mammals and birds with an enigmatic evolutionary history and obscure origin. We here present a molecular phylogenetic study based on a comprehensive taxon sampling of 259 flea taxa, representing 16 of the 18 extant families of this order. A Bayesian phylogenetic tree with strong nodal support was recovered, consisting of seven sequentially derived lineages with Macropsyllidae at the base and Stephanocircidae as the second basal group. Divergence times of flea lineages were estimated based on fossil records and host specific associations to bats (Chiroptera), showing that the common ancestor of extant Siphonaptera split from its closest mecopteran sister group in the Early Cretaceous and basal lineages diversified during the Late Cretaceous. However, most of the intraordinal divergence into families took place after the K-Pg boundary. Ancestral states of host association and biogeographical distribution were reconstructed, suggesting with high likelihood that fleas originated in the southern continents (Gondwana) and migrated from South America to their extant distributions in a relatively short time frame. Theria (placental mammals and marsupials) represent the most likely ancestral host group of extant Siphonaptera, with marsupials occupying a more important role than previously assumed. Major extant flea families evolved in connection to post K-Pg diversification of Placentalia. The association of fleas with monotremes and birds is likely due to later secondary host association. These results suggest a relatively distant relationship between true Siphonapterans and the fossil “fleas” recently discovered in Mesozoic formations of Northeast Asia.
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chapter 236 Siphonaptera fleas
Encyclopedia of Insects (Second Edition), 2009Co-Authors: Michael W Hastriter, Michael F. WhitingAbstract:Publisher Summary This chapter discusses the Siphonaptera, laterally compressed wingless holometabolous insects. The order contains approximately 2575 species. All species are parasitic in the adult stage and possess mouthparts modified for piercing and sucking, highly modified combs and setae on their body and legs, and legs that are modified for jumping. Some species are vectors of disease, and current research is providing important insights into flea phylogeny and evolution. Most flea species require a blood meal prior to oogenesis and spermatogenesis. With the exception of some species whose reproductive cycle is synchronized with that of their host, there are few studies on the nutritional requirements of adult fleas. Although the larvae of several fleas have been noted to burrow into dead host tissues, those of Uropsylla tasmanica are the only truly parasitic flea larvae that burrow into and feed on the tissues of their live hosts. Some larvae have been documented to feed directly on fresh blood as it is excreted from the anus of feeding adult fleas, but most scavenge on the dried blood residues or animal dandruff and excreta. A few species are predaceous on other small organisms within the nest.
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Mecoptera is paraphyletic: multiple genes and phylogeny of Mecoptera and Siphonaptera
Zoologica Scripta, 2002Co-Authors: Michael F. WhitingAbstract:Phylogenetic relationships among members of the Mecoptera and Siphonaptera were inferred from DNA sequence data. Four loci (18S and 28S ribosomal DNA, cytochrome oxidase II and elongation factor-1α) were sequenced for 69 taxa selected to represent major flea and mecopteran lineages. Phylogenetic analyses of these data support a paraphyletic Mecoptera with two major lineages: Nannochoristidae + (Siphonaptera + Boreidae) and Meropidae + ((Choristidae + Apteropanorpidae) (Panorpidae + (Panorpidae + Bittacidae))). The flea family Ctenophthalmidae is paraphyletic, and the Ceratophylloidea is monophyletic. Morphological evidence is discussed which is congruent with the placement of Siphonaptera as sister group to Boreidae.
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the strepsiptera problem phylogeny of the holometabolous insect orders inferred from 18s and 28s ribosomal dna sequences and morphology
Systematic Biology, 1997Co-Authors: Michael F. Whiting, Quentin D. Wheeler, James Carpenter, Ward C WheelerAbstract:: Phylogenetic relationships among the holometabolous insect orders were inferred from cladistic analysis of nucleotide sequences of 18S ribosomal DNA (rDNA) (85 exemplars) and 28S rDNA (52 exemplars) and morphological characters. Exemplar outgroup taxa were Collembola (1 sequence), Archaeognatha (1), Ephemerida (1), Odonata (2), Plecoptera (2), Blattodea (1), Mantodea (1), Dermaptera (1), Orthoptera (1), Phasmatodea (1), Embioptera (1), Psocoptera (1), Phthiraptera (1), Hemiptera (4), and Thysanoptera (1). Exemplar ingroup taxa were Coleoptera: Archostemata (1), Adephaga (2), and Polyphaga (7); Megaloptera (1); Raphidioptera (1); Neuroptera (sensu stricto = Planipennia): Mantispoidea (2), Hemerobioidea (2), and Myrmeleontoidea (2); Hymenoptera: Symphyta (4) and Apocrita (19); Trichoptera: Hydropsychoidea (1) and Limnephiloidea (2); Lepidoptera: Ditrysia (3); Siphonaptera: Pulicoidea (1) and Ceratophylloidea (2); Mecoptera: Meropeidae (1), Boreidae (1), Panorpidae (1), and Bittacidae (2); Diptera: Nematocera (1), Brachycera (2), and Cyclorrhapha (1); and Strepsiptera: Corioxenidae (1), Myrmecolacidae (1), Elenchidae (1), and Stylopidae (3). We analyzed approximately 1 kilobase of 18S rDNA, starting 398 nucleotides downstream of the 5' end, and approximately 400 bp of 28S rDNA in expansion segment D3. Multiple alignment of the 18S and 28S sequences resulted in 1,116 nucleotide positions with 24 insert regions and 398 positions with 14 insert regions, respectively. All Strepsiptera and Neuroptera have large insert regions in 18S and 28S. The secondary structure of 18S insert 23 is composed of long stems that are GC rich in the basal Strepsiptera and AT rich in the more derived Strepsiptera. A matrix of 176 morphological characters was analyzed for holometabolous orders. Incongruence length difference tests indicate that the 28S + morphological data sets are incongruent but that 28S + 18S, 18S + morphology, and 28S + 18S + morphology fail to reject the hypothesis of congruence. Phylogenetic trees were generated by parsimony analysis, and clade robustness was evaluated by branch length, Bremer support, percentage of extra steps required to force paraphyly, and sensitivity analysis using the following parameters: gap weights, morphological character weights, methods of data set combination, removal of key taxa, and alignment region. The following are monophyletic under most or all combinations of parameter values: Holometabola, Polyphaga, Megaloptera + Raphidioptera, Neuroptera, Hymenoptera, Trichoptera, Lepidoptera, Amphiesmenoptera (Trichoptera + Lepidoptera), Siphonaptera, Siphonaptera + Mecoptera, Strepsiptera, Diptera, and Strepsiptera + Diptera (Halteria). Antliophora (Mecoptera + Diptera + Siphonaptera + Strepsiptera), Mecopterida (Antliophora + Amphiesmenoptera), and Hymenoptera + Mecopterida are supported in the majority of total evidence analyses. Mecoptera may be paraphyletic because Boreus is often placed as sister group to the fleas; hence, Siphonaptera may be subordinate within Mecoptera. The 18S sequences for Priacma (Coleoptera: Archostemata), Colpocaccus (Coleoptera: Adephaga), Agulla (Raphidioptera), and Corydalus (Megaloptera) are nearly identical, and Neuropterida are monophyletic only when those two beetle sequences are removed from the analysis. Coleoptera are therefore paraphyletic under almost all combinations of parameter values. Halteria and Amphiesmenoptera have high Bremer support values and long branch lengths. The data do not support placement of Strepsiptera outside of Holometabola nor as sister group to Coleoptera. We reject the notion that the monophyly of Halteria is due to long branch attraction because Strepsiptera and Diptera do not have the longest branches and there is phylogenetic congruence between molecules, across the entire parameter space, and between morphological and molecular data.
Daniel Moreira De Avelar - One of the best experts on this subject based on the ideXlab platform.
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A New Species of Tunga (Siphonaptera: Tungidae) Parasitizing Cattle from Brazil
Journal of medical entomology, 2013Co-Authors: Daniel Moreira De Avelar, Elias Jorge Facury Filho, Pedro Marcos LinardiAbstract:Tunga hexalobulata (Siphonaptera: Tungidae), new species of tungid sand flea belonging to the penetrans group, is described with illustrations of adult female parasitizing Bos indicus (L., 1758) from Brazil. It differs from the 12 other known species of Tunginae by the presence of six anterior humps in the neosome. It also can be differentiated from other species of the penetrans group by lesser size of the neosome, presence of three posterodorsally bristles in antennal segment II, and the extension of the posterior arm of the preoral internal sclerotization.
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seasonality and prevalence rates of steinina sp eugregarinorida actinocephalidae in ctenocephalides felis felis Siphonaptera pulicidae from dogs captured in belo horizonte minas gerais brazil
Journal of Medical Entomology, 2008Co-Authors: Daniel Moreira De Avelar, Pedro Marcos LinardiAbstract:In total, 1,500 specimens (448 males and 1,052 females) of the flea Ctenocephalides felis felis (Bouche) (Siphonaptera: Pulicidae) were collected over a period of a year from 150 dogs captured by the Centro de Controle de Zoonoses de Belo Horizonte, Minas Gerais, Brazil. Microscopic examination of the dissected fleas revealed that 180 fleas were infected with a species of gregarine that was subsequently identified as a member of the genus Steinina. The relative abundances, prevalence rates, and seasonal variation of the different developmental stages of this endoparasite in C. felis felis were determined. Both gamonts and gametocysts presented significant seasonal variation.
