Scientific note
Oxymerus aculeatus (Coleoptera: Cerambycidae) causing damage on corn plants (Zea mays) in Brazil
Oxymerus aculeatus (Coleoptera: Cerambycidae) causando daños en plantas de maíz (Zea mays) en Brasil
EVALDO MARTINS PIRES1, ISABEL MOREIRA2, MARCUS ALVARENGA SOARES3, JOÃO ALFREDO MARINHO4, ROSENILSON PINTO5 and JOSÉ COLA ZANUNCIO6
1 DSc. Instituto de Ciências Naturais, Humanas e Sociais, Universidade Federal de Mato Grosso, 78557-000 Sinop, MT, Brazil. evaldo.pires@gmail.com Corresponding author.
2 Agronomy engineer. Departamento de Biologia Animal, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil.
3 MSc. Universidade Estadual de Minas Gerais Av. Brasília, 1304 - Bairro Baú - 35930-314 João Monlevade, MG, Brazil.
4 PhD. Departamento de Biologia Animal, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil.
]]> 5 DSc. Departamento de Biologia Animal, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil.6 PhD. Departamento de Biologia Animal, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil.
Recibido: 5-may-2010 - Aceptado: 5-oct-2010
Resumen: Los adultos y las larvas de Cerambycidae son responsables de daños en especies vegetales. Los insectos de esta família son conocidos vulgarmente como brocas, coleobrocas, serradores, serrapaus, siendo fácilmente reconocidos por presentar antenas largas, generalmente más largas que su cuerpo. Se encontraron ejemplares de Oxymerus aculeatus (Coleoptera: Cerambycidae) en cultivos de maíz en la Universidade Federal de Viçosa, Minas Gerais estado Brasil, durante el período de floración y causando daños a la parte reproductiva de la planta.
Palabras clave: Escarabajos longicornios. Viçosa.
Abstract: The adults and larvae of Cerambycidae are responsible for damage to plant species. The insects of this family are commonly known as wood borers, being easily recognized by the presence of long antennae, usually longer than the body. Specimens of Oxymerus aculeatus (Coleoptera: Cerambycidae) were found in corn fields at the Federal University of Viçosa, Minas Gerais State, Brazil, during the flowering period and damaging the reproductive part of the plant.
Key words: Longhorned beetles. Viçosa.
Introduction
The Cerambycidae family is composed by eight subfamilies and most of the species are in three of them (Cerambycinae, Lamiinae and Prioninae) (Crownson 1991). The Neotropical region has approximately 5000 species of this family distributed in 1500 genera and in Brazil 4000 species from 1000 genera can be found (Costa 2000). Cerambycidae beetles can cause extensive damages such as opening mines, wholes and spots on the wood, besides the attacks on branches and stems that can promote the development of some microorganisms such as bacteria, fungi, and virus (Hosking 1977; Berti Filho et al. 1995; Carvalho et al. 1995; Zanuncio et al. 2009).
Individuals of Cerambycidae were recorded causing damage on forest crops with economical importance (Iturre et al. 1995; BertiFilho 1997; Wilcken et al. 2005; Zanuncio et al. 2009) and orchards of fruit trees (Garcia and Corseuil 1998/1999; Canettieri and Garcia 2000; Paz et al. 2008). The Oxymerus genus presents species described in the American continent, including Argentina, Bolivia, Brazil, Guyana, Jamaica, Nicaragua, Paraguay, Peru, Uruguay and Venezuela (Monné et al. 2006) and specifically Oxymerus aculeatus Dupont, 1838 (Coleoptera: Cerambycidae) has been recorded in the States of Goiás, Mato Grosso, Minas Gerais, and São Paulo in Brazil (Monné et al. 2006). This is the first report of O. aculeatus causing damage on corn plants (Zea mays L.) during the reproduction period of the plant at the Federal University of Viçosa (20º45’14”S, 42º52’55”W) Viçosa, Minas Gerais State, Brazil (Fig. 1).
]]> These insects were recorded feeding and causing damages on the tissue of male flowers of the corn plants. Black spots were observed because of the feeding behavior of the insects. Cerambycidae species has been cited in the literature feeding on the flowers, nectar, pollen and wood of different long cycle plants species (Crownson 1981; Martins 1997; Lawrence et al. 1999); however, there is no record or literature about this species feeding and damaging Z. mays. The presence of O. aculeatus on plants with annual cycle can result in an adjustment of the insect to this new ecosystem that is not desirable because this insect species can reduce the reproductive capacity of the corn plants by attacking the reproductive system of them and, consequently, reducing the seed production. These observations can encourage future research and works about the establishment of O. aculeatus on this new host plant.Cited Literature
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