Examinando por Materia "Neotropico"

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    A Un caso de ginandromorfismo en Amblyomma mixtum (Acari, Ixodidae).
    (Universidad del Valle, 2017-12-30) Rivera Páez, Fredy A.; Labruna, Marcelo B.; Martins, Thiago F.; Rodrigues Sampieri, Bruno; Camargo Mathias, María I.; Sociedad Colombiana de Entomología - Socolen; Universidad del Valle
    Ginandromorfismo es una condición donde un organismo exhibe simultáneamente características morfológicas de macho y hembra. En Colombia el taxón Amblyomma cajennense está representado por las especies Amblyomma patinoi y Amblyomma mixtum. En septiembre de 2014 en la Orinoquía colombiana, de infecciones naturales de bovinos y equinos, se colectaron y determinaron garrapatas adultas. En una infección natural de bovino se describió un ginandromorfo clasificado morfológicamente como A. mixtum. Éste es el primer registro en la literatura de un ginandromorfo A. mixtum, y la primera descripción de un ginandromorfo para una especie de garrapata en Colombia.
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    PublicaciónAcceso abierto
    First record of fruit piercing moths (Lepidoptera: Erebidae) in Colombia.
    (Universidad del Valle, 2018-07-08) Montes Rodríguez, José Mauricio; Rojas, Hernán Darío; Vaca Bohórquez, Néstor Cesay; Universidad del Valle; Sociedad Colombiana de Entomología - Socolen; Montoya Lerma, James
    During the harvest season in June and July of 2016, there was an unusual drop of tangerine and orange fruits that caused heavy losses in several fruit producing municipalities in the department of Santander, in northeastern Colombia. In some of these fruits, punctures were found, from which soft rotting originated; this damage was unknown to farmers in the region. Nocturnal sampling allowed the detection of two species of fruit piercing moths, Eudocima apta and E. procus, puncturing the fruits. Moth damage changed from being high to disappearing within about two weeks. This is the first report of fruit piercing moths in orange and tangerine crops from Colombia. Simultaneously, 60 km east of the citrus crops, moths were also detected in the Berlin paramo in the municipality of Silos between 3,000 and 3,100 masl, far from any fruit orchard and from the host plants registered for E. apta, suggesting that this was a migratory move.
  • Miniatura
    PublicaciónAcceso abierto
    Five new records of dragonflies (odonatan : anisoptera) from Putumayo department (Colombia)
    (2015-04-27) Palacino Rodriguez, Fredy
    Five new records of dragonflies for Putumayo department are reported, and information about of the number of Odonata species by department is provided. RESUMEN Cinco nuevos registros de lib´elulas para el departamento de Putumayo son reportados, e informaci´on acerca del n´umero de especies de Odonata por departamento es proporcionada.
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    PublicaciónAcceso abierto
    Termite (Isoptera) survey in urban area in Northern of Rio de Janeiro State, Brazil.
    (Universidad del Valle, 2019-08-30) Gazal, Vinícius; Bailez, Omar; Viana Bailez, Ana Maria; Sociedad Colombiana de Entomología - Socolen; Universidad del Valle; Montoya Lerma, James
    Most pest termites in urban areas in Brazil are exotic species, but native species are becoming an increasing problem. This study aimed to identify termite species infesting trees and houses in urban areas of Campos dos Goytacazes, in the north of Rio de Janeiro State. Trees in the streets of sixteen neighborhoods were inspected for termites. Inspections and interviews were also conducted to verify the occurrence of termites in houses. Termites were recorded in 17 % of the 1,307 trees surveyed. Coptotermes gestroi was the most frequent species (51% of infested trees), Nasutitermes corniger and Microcerotermes strunckii were present in 38 % and 14 % of infested trees, respectively, and Microcerotermes arboreus was the least common (1 %). Different termite species coexisted in 14 % of the infested trees (n = 31). Termite infestations were recorded in 26% of the surveyed households (n = 1,020). Four species were identified as causing damage: Cryptotermes brevis, C. gestroi, N. corniger, and M. strunckii. The most common species was C. brevis, affecting 133 residences (51 %). C. gestroi and N. corniger were less frequent, but they were responsible for more structural damage than C. brevis, which mainly attacked furniture.