Species richness of noctuid moths (Lepidoptera: Noctuidae) from the State of Guanajuato, Mexico
Keywords:
richness, biogeography, biological control, reed canarygrass, MegamexicoAbstract
The Noctuidae are a family with many species worldwide, but in Mexico, there is little information about their species richness despite noctuids being very important pests in agriculture. With data obtained from fieldwork and specimens from the Entomological Collection of Universidad de Guanajuato, a list of species found in Guanajuato was made, taking into account distribution and biogeographic affinity data. The results showed 77 species, of which 36.3% had a distribution of Megamexico I affinity, 33.7% had Nearctic affinity, and 16.8% were cosmopolitan, whereas the rest of the species had distributions that corresponded to Megamexico II and III. The high percentage of northern species suggests that the biogeographic affinity of the noctuids from Guanajuato is close to the southern USA and northern Mexico. This research reports 30 new species records for Mexico, and 1 species may be a potential agent for the biological control of reed canarygrass, a major weed species.
Sumario
Noctuidae es una familia de palomillas con muchas especies reconocidas alrededor del mundo, pero en México hay poca información disponible sobre su riqueza a pesar de que los noctuidos se consideran plagas en la agricultura. Con datos obtenidos en campo y de la revisión de ejemplares de la Colección Entomológica de la Universidad de Guanajuato, se elaboró un listado de especies tomando en cuenta la distribución y la afinidad biogeográfica. Se encontraron 77 especies, 36.3% de afinidad Megamexico I, 33.7% de afinidad Neártica y 16.8% cosmopolitas, el resto de las especies tienen distribución que corresponde a Megamexico II y III. El alto porcentaje de especies norteñas sugiere que Guanajuato es más parecido al sur de Estados Unidos y Norte de México. En esta investigación se reportan 30 nuevos registros de especies para México, una con el potencial de usarse como control biológico de malezas en cultivos.
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