58 research outputs found

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

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    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)

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    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

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

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    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

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

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    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

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    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

    Sobre beija-flores, formigas e flores

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    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

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

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    Ácaros de plantas do cerrado

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    Os ácaros do cafeeiro

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    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

    Sobre alguns ácaros associados a um sauveiro

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    Five genera of mites and one hypopus of Acaridae are reported as to occur associated with the fungi cultivated by the leaf cutting ant Atta sexdens rubropilosa (Hymenoptera, Formicidae)
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