Ocorrência de ácaros em Paquira aquatica Aubl. Incluindo aspectos morfológicos do aparato bucal de Brachytydeus formosa (Acari: Tydeidae)

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Lorençon, J. R. [UNESP]
Andrade, S. C. [UNESP]
Andrade, D. J. [UNESP]
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Pachira aquatica Aubl. is commonly used as an ornamental plant in urban areas of Brazil. The objective of the study was to investigate the occurrence of mites on P. aquatica, with emphasis on Brachytydeus formosa (Cooreman), and to describe aspects the external features of its mouthpart. The study was conducted in 2012 in Jaboticabal, State of São Paulo, Brazil. Ten trees ofP aquatica were selected for the experiment. Approximately 130 leaflets were collected from each tree, which were located in different quadrants (north, south, east, and west) and strata (upper, middle, and lower). The leaflets were placed in paper bags and transported to the laboratory. The mites were prepared on optical microscope slides. A total of eleven species of mites were found, belonging to eight different families. The species and genera of the organisms included B. formosa, Eutetranychus banksi (McGregor), Agistemus sp., Tyrophagus putrescentiae (Schrank, 1781), Brevipalpusphoenicis (Geijskes), Brevipalpus sp., Cheletogenes sp., Iphiseiodes zuluagai Denmark & Muma, Euseius sp., Neoseiulus sp., and only one specimen from the Bdellidae family. The predominant species was B. formosa, with 8,142 mites equally distributed among the four quadrants and mostly in the middle and upper strata of the plant. B. formosa mites from leaflets of P. aquatica were separated for the study of the external mouthpart morphology by scanning electron microscopy (SEM).
Biodiversity, Eutetranychus banksi, Gnathosoma, Ornamental plant, Tydeoidae
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Brazilian Journal of Biology, v. 76, n. 1, p. 136-143, 2016.