Sexual dimorphism of Rhyssomatus subtilis (Coleoptera: Curculionidae)
Keywords:
weevil, uncus, mucro, tibiae, femoral processAbstract
Examination with a binocular microscope of adults of Rhyssomatus subtilis Fielder (Coleoptera: Curculionidae) revealed distinct differences between the sexes in the foreleg, which permits their differentiation with complete accuracy. In the female the profemual process is weak, subacute, angulate and the protibia has an uncus and mucro. In the male the profemur process is strong, curved, subacute, tooth-like and lacks an protibia uncus.
La examinación con microscopio binocular de los adultos de Rhyssomatus subtilis Fielder (Coleoptera: Curculionidae) revelan diferencia entre los sexos en las patas delanteras, permitiendo diferenciarlos con completa precisión. Las hembras presentan el proceso femoral anterior débil, subagudo, angulado y la protibia con uncus y mucro presente. En los machos el proceso femoral anterior es fuerte, curvado, subagudo, con diente y la protibia no presenta uncus.
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