New record of Cyrtobagous salviniae Calder & Sands, 1985 (Coleoptera: Curculionidae) from southeastern Brazil with comments on its dispersal among freshwater ponds

Glauco C. de S. Oliveira; Adaiane C. M. Jacobina; Letícia Vieira; Guilherme R. Demetrio

doi:10.37486/2675-1305.ec08007

Authors

Glauco C. de S. Oliveira Universidade Federal de Lavras, Lavras, MG, Brazil https://orcid.org/0000-0001-9811-8485
Adaiane C. M. Jacobina Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil https://orcid.org/0000-0002-0546-4563
Letícia Vieira Universidade Federal de Lavras, Lavras, MG, Brazil https://orcid.org/0000-0003-1077-589X
Guilherme R. Demetrio Universidade Federal de Alagoas, Penedo, AL, Brazil https://orcid.org/0000-0002-6481-1633

DOI:

https://doi.org/10.37486/2675-1305.ec08007

Keywords:

weevil, Salvinia, aquatic weeds, aquatic plants, aquatic macrophytes

Abstract

Cyrtobagous salviniae Calder & Sands, 1985 (Coleoptera: Curculionidae) is a weevil native to South America and distributed worldwide as a biocontrol agent of aquatic weeds of the genus Salvinia Ség. Native populations and aspects of this weevil biology, such as dispersal mechanisms, are still poorly known, especially in southeastern Brazil. Here, we report the first record voucher-based of C. salviniae for the state of Minas Gerais, which not only extends its distribution westward in the southeastern region, but also documents the dispersal of individuals among freshwater ponds via mats of Salvinia auriculata Aubl. displaced during a regional river flood, and briefly discuss the ecological importance of such processes.

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