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• Braz. J. Biol. 62 (2) • May 2002 • https://doi.org/10.1590/S1519-69842002000200011 linkcopy

Open-access Natural enemies of the gall-maker Eugeniamyia dispar (Diptera, Cecidomyiidae): predatory ants and parasitoids

Inimigos naturais do galhador Eugeniamyia dispar (Diptera, Cecidomyiidae): formigas predadoras e parasitóides

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    Abstracts

    Natural enemies of the gall maker Eugeniamyia dispar (Diptera: Cecidomyiidae) were studied on the urban area of Porto Alegre, RS, Brazil from October 1993 to March 1996. Galls and associated arthropods were followed weekly in the field on individual host plants (Eugenia uniflora, Myrtaceae) and also in the laboratory. Three species of ants attacked the galls, the most common being Pseudomyrmex sp. A proportion of galls was parasitised by Rileya sp. (Eurytomidae). The adults of this solitary ectoparasitoid were also attacked by the ants and fell prey to spider webs.

    Eurytomidae; Formicidae; gall; Myrtaceae; parasitoid; predation; Rileya; Pheidole

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    Instituto Internacional de Ecologia R. Bento Carlos, 750, 13560-660 São Carlos SP - Brasil, Tel. e Fax: (55 16) 3362-5400 - São Carlos - SP - Brazil
    E-mail: bjb@bjb.com.br
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