204 research outputs found

    The cassava mite complex: III - new distribution records, mainly from Colombia and Africa. References to other plants

    Get PDF
    Uma lista de novas referências e ocorrências para ácaros tetraniquídeos da mandioca é apresentada

    On the morphological "variation" on the aedaegus of Schizotetranychus oryzae (acari, prostigmata, tetranychidae)

    Get PDF
    Sobre a "variação" morfológica do edéago de Schizotetranychus oryzae (Acari, Prostigmata, Tetranychidae). Apresenta-se uma nota sobre a ocorrência do ácaro do arroz, Schizotetranychus oryzac Rossi de Simons, No Brasil, com observações sobre a "variação" morfológica do edéago do macho desta espécie de ácaro

    Sobre beija-flores, formigas e flores

    Get PDF
    It has been found that flowers of Abutilon striatum Dickson (Malvaceae) are robbed by hummingbirds and Trigona bees and, thus opened up, invaded by ants of the genus Pheidole.Relata-se a relação entre beija-flores, formigas e flores de uma malvácea, Abutilon striatum, tendo-se achado que beija-flores e meliponídeos colhem o seu néctar e, uma vez tendo o seu cálice perfurado pelos últimos, são invadidas por formigas

    Tuckerella ornata (Tucker), A mite new for Brazil and other tetranychoidea (Acari) from the state of Pará

    Get PDF
    Tuckerella ornata (Tucker) is, for the first time, recorded from Brazil (Belem, State of Pará) and also for the first time on cocoa. The female is carmine in color with white dorsal fan-like setae. It was found on woody stems of cocoa plants, where most of the outer tissues have turned corky, but, where areas of live tissue are still present; it was also found inside cracks of the stems. Other Tetranychoid mites from Pará include: - Tenuipalpus heveae Baker, found on the lower face of median to old rubber tree leaves (Hevea sp.); rather large populations were observed, causing a light leaf distortion and bronzing; it is not considered as a pest. - Oligonychus mangiferus (Rahman & Punjab) causes intense leaf bronzing on Terminalia catappa L., an ornamental tree. Rather large populations of this mite were observed on the upper leaf surface; much dirt is caught in their webbings. - Tetranychus desertorum Banks was observed damaging jute, Corchorus capsularis L., causing intense chlorosis to the leaves. Collected at Alenquer, Pará.Assinala-se, pela primeira vez no Brasil e também pela primeira vez em cacaueiros, a presença do ácaro Tuckerella ornata (Tucker, 1926). É dada a sua relação com a planta hospedeira. É também feita referencia, para o Estado do Pará, da presença dos ácaros Tenuipalpus heveae Baker, 1945 em seringueiras; Oligonychus mangiferus (Rahman & Punjab, 1940) em castanhola e Tetranychus desertorum Banks, 1900 em juta

    Ácaros encontrados sôbre maçãs de procedência argentina

    Get PDF
    Apples from Argentina showed large numbers of mite eggs and some diapausing females. They were reared on leaves of lima beans. From the eggs acari related to Panonychus ulmi were obtained and also specimens of Cheyletidae. The diapausing females proved to be Tetranychus telarius and large populations were obtained from four females. There was also one specimem of Phytoseiid mite

    Alguns gêneros de (Acari, Prostigmata)do estado de São Paulo

    Get PDF
    Rhaphignathoid genera Cryptognathus, Noephyllobius, Eupalopsellus, Raphignathus, Ledermuelleria, Microstigmaeus, Zetzellia and Agistemus, and the species Agistemus longisetus Gonzalez, 1963, are recorded from the State of São Paulo, Brasil

    On a small collection of mites (Arthropoda, Acari) from the island of Fernando de Noronha, Brasil

    Get PDF

    Cariótipos de ácaros tetraniquídeos do Brasil (Acari, Prostigmata, Tetranychidae)

    Get PDF
    Information on karyotypes and types of parthenogenesis for 10 species of Brazilian spider mites In the subfamily Tetranychinae is presented. Oligonychus ilicis was found to exhibit both types of parthenogenesis, thelytoky and arrhenotoky.Os cariótipos e tipos de partenogênese de 10 espécies brasileiras de ácaros Tetranychidae - Tetranychinae são apresentados. Observou-se que o ácaro vermelho do cafeeiro, Oligonychus ilicis, exibe telitoquia e arrenotoquia

    Introdução à família Tarsonemidae Kramer, 1877 (Acarina) no estado de São Paulo

    Get PDF
    No presente trabalho é dada uma introdução à família Tarsonemidae e são relatadas as seguintes espécies: Polyphagotarsus latus (Banks, 1904) Beer & Nucifora, 1965; Tarsonemus setifer Ewing, 1939; Steneotarsonemus ananas (Tryon, 1898) Beer, 1954; S. pallidus (Banks, 1901) Beer, 1954; S. hyaleos Beer, 1954 e Rhynohotarsonemus sp. Uma chave para a separação dos gêneros e outra para a separação das espécies de Steneotarsonemus é apresentada.The author presents an introduction to the characters of the family Tarsonemidae and relates following species from the State of São Paulo: Polyphagotarsonemus latus (Banks, 1904) Beer & Nucifora, 1965; Tarsonemus setifer Ewing, 1939; Steneotarsonemus ananas (Tryon, 1898) Beer, 1954; S. pallidus (Banks, 1901) Beer, 1954; S. hyaleos Beer, 1954, and Rhynchotarsonemus sp., and Neotarsonemus latus from the State of Paraná. Keys to the genera, and species of Steneotarsonemus are given

    Os ácaros do cafeeiro

    Get PDF
    Five species of mites are related to coffee leaves, in the States of São Paulo and Minas Gerais, Brazil: 1. Tetranychidae - Oligonychus ilicis (McGregor, 1919) P. & B. 1955. 2. Tenuipalpidae - Brevipalpus phoenicis (Geijskes, 1939) Sayed, 1946. 3. Tydeidae - Lorryia, lwiroensis group, and Tydeus sp. 4. Phytoseiidae - Amblyseius hibisci (Chant) Schuster & Pritchard, 1963
    corecore