Primer registro de ácaros (Arachnida: Acari) foréticos y parásitos asociados con moscas necrófagas en Brasil.

Muchas especies de artrópodos principalmente moscas (Diptera) y sus ácaros foréticos son atraídos por la carroña. Este es el primer registro de ácaros foréticos y parásitos Leptus sp., Macrocheles muscaedomesticae y Longoseius brachypoda, en moscas necrófagas en Brasi

O discurso dos professores sobre a transmissão de pediculose antes de uma atividade educativa

Pediculosis is a public health pathology. Educational methods would certainly colaborate to the success of the treatment and prevention of this pathology. This study, developed in Rio de Janeiro's schools (RJ), Brazil, demonstrates the primary teachers' discourse on how pediculosis is transmitted. The pieces of information were obtained from interviews and analized by the Discourse of the Collective Subject method. Fourteen categories were revealed. Some correct ways of transmission were presented, for example: through physical and corporal contact, like "head to head", with people who have pediculosis. On the other hand, some of these categories revealed lack of knowledge about the subject: the lice fly; the lice jump from one's head to anothers'; through the nits. These results demonstrated that there are teachers that don't know about the transmission of this pathology. For this reason, the possibility that these teachers have to collaborate effectively to its prevention in schools diminishes; the same occurs with the health promotion of their students.A Pediculose é uma doença de importância para a saúde pública. Acredita-se que medidas educacionais colaborem para o sucesso do tratamento e da prevenção desta patologia. Este trabalho, realizado em escolas do Rio de Janeiro (RJ), Brasil, apresenta o discurso de professores de ensino fundamental sobre a forma como a Pediculose é transmitida. As informações foram obtidas através de entrevistas e analisadas pelo Discurso do Sujeito Coletivo. Revelaram-se quatorze categorias. Algumas apresentavam formas corretas de transmissão: através de contato físico e corporal do tipo "cabeça com cabeça", com pessoas que têm Pediculose. Porém, outras revelaram o seu desconhecimento: o piolho voa, o piolho pula de uma cabeça para outra, através das lêndeas. Estes resultados demonstram a existência de professores que desconhecem a forma como a patologia é transmitida. Isto diminui a possibilidade que estes profissionais têm para colaborarem efetivamente na prevenção desta patologia nas escolas, assim como para a promoção da saúde de seus alunos

Life cycle and reproductive patterns of Triatoma rubrofasciata (De Geer, 1773) (Hemiptera: Reduviidae), under laboratory conditions

Submitted by Sandra Infurna ([email protected]) on 2019-11-29T11:05:12Z No. of bitstreams: 1 ZeneidaPinto_MarinaVBraga_IOC_1998.pdf: 80804 bytes, checksum: 0c892cd54d5683061c185aa2f5d6f6ff (MD5)Approved for entry into archive by Sandra Infurna ([email protected]) on 2019-11-29T11:14:41Z (GMT) No. of bitstreams: 1 ZeneidaPinto_MarinaVBraga_IOC_1998.pdf: 80804 bytes, checksum: 0c892cd54d5683061c185aa2f5d6f6ff (MD5)Made available in DSpace on 2019-11-29T11:14:41Z (GMT). No. of bitstreams: 1 ZeneidaPinto_MarinaVBraga_IOC_1998.pdf: 80804 bytes, checksum: 0c892cd54d5683061c185aa2f5d6f6ff (MD5) Previous issue date: 1998Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia e Controle de Insetos Vetores. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Laboratório de Educação Ambiental e em Saúde. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia e Controle de Insetos Vetores. Rio de Janeiro, RJ, Brasil.The life cycle and reproductive patterns of Triatoma rubrofasciata were studied along with laboratory conditions for the establishment of a prolific colony. The insects were divided into four groups: two of them were maintained at room temperature (20.5 degrees C to 33 degrees C and 85% +/- 5% of relative humidity), the other two in a climatic chamber (CC) (temperature: 29 degrees C, humidity: 80% +/- 5%). The groups were fed weekly or fortnightly on Swiss mice. The females from the group kept in the CC and fed weekly had longer life span, as well as a higher number of eggs, fertile eggs and hatchings; the group kept in the CC and fed fortnightly had a shorter life span for the 1st, 2nd and 3rd instars and a lower mortality rate for all instars. It was concluded that a constant high temperature (CC at 29 degrees C) is the most suitable condition for the maintenance of a colony of T. rubrofasciata regardless of the interval between repasts

Ultrastructure of sensilla on antennae and maxillary palps in three Mesembrinellidae species

Abstract Background Having the right identification is essential in the field of entomology. The scanning electron microscopy allows rapid and accurate identification of different species of flies since a better visualization of the external morphology of immature and some adults is possible. The aim of this study is to describe some ultrastructures of three flies in the Mesembrinellidae family: Mesembrinella bellardiana; Mesembrinella bicolor and Mesembrinella semihyalina, all examined by scanning electron microscopy to help increase the anatomical database on flies and deal with phlylogenetic implications. Results The flies were examined under JEOL 6390LV scanning electron microscope (SEM). The microtrichia morphology of the antennae is similar to that of other and are present on all antennal surface with variable distribution. The chaetic sensilla were observed only in the scape (chaetic sensilla I) and pedicel segments (chaetic sensilla I-III). Three types of sensilla: trichoidea, basiconic and clavate were observed in the first flagellomere of M. bellardiana; and two types of sensilla: trichoidea and basiconic were noticed in M. bicolor and M. semihyalina. Olfactory pits were observed in both gender of M. bellardiana and female of M. bicolor. The maxillary palp of the Mesembrinella species in this study does not show sexual dimorphism. Conclusion This investigation provided new findings of some diagnostic structures of flies using SEM, since many of them could have not been observed just by the use of light microscopy

Ultrastructural studies of sensilla in one fly of forensic importance

Taxonomic identification is essential in the field of forensic entomology. Insects are important in the decomposition of cadavers. The flies are generally attracted to cadavers and one of the most important contributions is to estimate the postmortem interval. The scanning electron microscopy (SEM), which allows rapid and accurate identification of different species of forensics flies, has been highlighted as it allows better visualization of the external morphology of immature and some adults. The purpose of this study was to examine in details the morphological aspects of sensilla on the antennae of female and male of Xanthacrona bipustulata Wulp using SEM, since many of them could not be observed just by the use of light microscopy

Parasitoides de moscas no Parque Municipal Natural de Nova Iguaçu, RJ - Brasil

Os microhimenópteros representam uma alternativa para o controle de dípteros muscoides carreadores potenciais de patógenos tais como bactérias, vírus, protozoários e ovos de helmintos. São considerados o principal inimigo natural desses dípteros. Este trabalho tem como objetivo relatar a ocorrência de parasitoides associados a pupas de dípteros da família Calliphoridae (Diptera) no Parque Municipal Natural de Nova Iguaçu - RJ, Brasil. As coletas foram realizadas semanalmente no período de abril a outubro de 2006. O estudo demonstrou uma grande variedade de espécies de parasitoide pertencentes as famílias Braconidae, Chalcididae and EncyrtidaeMicrohimenopterous represent an alternative control of muscoid dipterous which that can carriers pathogens such as bacteria, viruses, protozoa and helminth eggs. They are considered the main natural enemy of these Diptera. This work aims to report the occurrence of microhimenopterous associated with dipterous pupae of family Calliphoridae (Diptera) in Parque Municipal Natural de Nova Iguaçu, RJ, Brazil. The collections were made weekly in the period from April to October 2006. The main species of parasitoids identified belong to the family Braconidae, Chalcididae and Encyrtidae

First record of acari Arrenurus Dugès, 1834 as a parasite of Odonata species in Brazil

Water mites are common and widespread parasites of some aquatic insects in freshwater habitats. This is the first record of acari Arrenurus Dugès, 1834, as a parasite of Odonata in Brazil. Water mites were sampled from Miathyria marcella (Selys, 1857) and Ischnura fluviatilis (Selys, 1876)

First record of Ophionyssus natricis (Gervais) (Acari: Macronyssidae) on Python reticulatus (Schneider) (Pythonidae) in Brazil

Abstract. Ophionyssus natricis (Gervais) frequently parasitizes snakes kept under human care. This mite is known to mechanically transmit the bacteria Proteus hydrophilus, which can cause hemorrhagic sepsis in snakes. This is the first record of O. natricis mite in Python reticulatus (Schneider) collected in captivity, in Brazil. The micrographs and drawings generated in this study, based on optical light microscopy and SEM observations, highlight an important identifying characteristic of O. natricis: The dorsal surface has two shields, consisting of propodosomal and pygidial, and the ventral surface has only the sternal shield trapezoidal with two pairs of setae, and pores on the edge. The identification of adults female of O. natricis mites in P. reticulatus collected in wild animals kept under human care, in Brazil, provides additional anatomical information to help identify the species by providing more necessary information to understand the morphology of snake mites. Primeiro registro de Ophionyssus natricis (Gervais) (Acari: Macronyssidae) em Python reticulatus (Schneider) (Pythonidae) no Brasil Resumo. Ophionyssus natricis (Gervais) frequentemente parasita cobras mantidas sob cuidados humanos. Este ácaro é conhecido por transmitir mecanicamente a bactéria Proteus hydrophilus, que pode causar sepse hemorrágica em cobras. Este é o primeiro registro O. natricis em Python reticulatus (Schneider) coletados em cativeiro, no Brasil. O estudo foi realizado com o auxílio de microscopia óptica e observações de MEV, gerando desenhos e micrografias, o que permitiu observar importantes características de identificação da fêmea de O. natricis: superfície dorsal com dois escudos, consistindo em propodossoma e pigidial, já a superfície ventral possui apenas o escudo esternal com forma trapezoidal, com dois pares de cerdas e poros na borda. A identificação das fêmeas adultas de O. natricis coletados em P. reticulatus mantidas sob cuidados humanos no Brasil, fornece informações anatômicas adicionais para ajudar na identificação da espécie fornecendo mais informações necessárias na compreensão da morfologia dos ácaros das cobras

First record of phoretic and parasitc mites (Arachnida: Acari) associated with necrophagous flies in Brazil

Submitted by Sandra Infurna ([email protected]) on 2018-10-01T14:03:12Z No. of bitstreams: 1 taira_sato_etal_IOC_2018.pdf: 1508519 bytes, checksum: 17acf0c488e99ae618637d17aee98926 (MD5)Approved for entry into archive by Sandra Infurna ([email protected]) on 2018-10-01T14:30:41Z (GMT) No. of bitstreams: 1 taira_sato_etal_IOC_2018.pdf: 1508519 bytes, checksum: 17acf0c488e99ae618637d17aee98926 (MD5)Made available in DSpace on 2018-10-01T14:30:41Z (GMT). No. of bitstreams: 1 taira_sato_etal_IOC_2018.pdf: 1508519 bytes, checksum: 17acf0c488e99ae618637d17aee98926 (MD5) Previous issue date: 2018Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Referência Nacional em Vetores das Riquetsioses. Rio de Janeiro, RJ, Brasil / Universidade Federal de Juíz de Fora. Programa de Pós-Graduação em Comportamento e Biologia Animal. Juiz de Fora, MG, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Educação em Ambiente e Saúde. Rio de Janeiro, RJ, Brasil / Universidade Estácio de Sá . Petrópolis, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Referência Nacional em Vetores das Riquetsioses. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Referência Nacional em Vetores das Riquetsioses. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Educação em Ambiente e Saúde. Rio de Janeiro, RJ, Brasil.Muchas especies de artrópodos principalmente moscas (Diptera) y sus ácaros foréticos son atraídos por la carroña. Este es el primer registro de ácaros foréticos y parásitos Leptus sp., Macrocheles muscaedomesticae y Longoseius brachypoda, en moscas necrófagas en Brasil.Many arthropod species, mainly flies (Diptera) and their phoretic mites are attracted by carrion. This is the first record of phoretic and parasitic mites Leptus sp., Macrocheles muscaedomesticae and Longoseius brachypoda associated with necrophagous flies in Brazi