Dimorfismo y Proporción Sexual de Poblaciones Naturales de Adultos de Rhyssomatus nigerrimus

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Guillermo López-Guillén; Jorge Valdez-Carrasco; Jaime Gómez Ruiz; Carol Janett Martínez Zarate; Leopoldo Cruz-López

doi:10.3958/059.041.0325

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Guillermo López-Guillén,^1,* Jorge Valdez-Carrasco,² Jaime Gómez Ruiz,³ Carol Janett Martínez Zarate,⁴ Leopoldo Cruz-López³

¹2Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Campo Experimenta
²3Colegio de Postgraduados (CP), Montecillo, Edo de México, C. P. 56230, México.
³4Grupo Académico Ecología de Artrópodos y Manejo de Plagas, El Colegio de la Frontera Sur, Tapachula
⁴5Instituto Tecnológico del Valle de Oaxaca, Ex-Hacienda de Nazareno, Xoxocotlán, Oaxaca, C.P. 71230,

^*Corresponding author; E-mail: lopez.guillermo@inifap.gob.mx

Abstract

The weevil Rhyssomatus nigerrimus Fahraeus is a pest that feeds on pods and plants of soybeans in Northwestern and Southeast Mexico. It is important to determine sexually dimorphic characters of R. nigerrimus for rapid separation of sexes for bioecology, behavior, and control studies. The objective of this work was to determine the sexual dimorphism and ratio of R. nigerrimus adults. The sexual proportion between males and females was approximately 1:1. We concluded that it is possible to separate adults of R. nigerrimus by sex based on secondary sexual characters, especially the mucro on the protibia.

Citation Download Citation

Guillermo López-Guillén, Jorge Valdez-Carrasco, Jaime Gómez Ruiz, Carol Janett Martínez Zarate, and Leopoldo Cruz-López "Dimorfismo y Proporción Sexual de Poblaciones Naturales de Adultos de Rhyssomatus nigerrimus," Southwestern Entomologist 41(3), 837-844, (1 September 2016). https://doi.org/10.3958/059.041.0325

Published: 1 September 2016

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