58 research outputs found
The cassava mite complex: III - new distribution records, mainly from Colombia and Africa. References to other plants
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)
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
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
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
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
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
Os ácaros do cafeeiro
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
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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