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Acta zoológica mexicana
versão On-line ISSN 2448-8445versão impressa ISSN 0065-1737
Resumo
FLORES PEREZ, Leonardo Roberto et al. Comparación de dos técnicas de medición de cápsulas cefálicas para separar estadios larvales de Copitarsia incommoda (Walker) (Lepidoptera: Noctuidae). Acta Zool. Mex [online]. 2005, vol.21, n.2, pp.109-113. ISSN 2448-8445.
The objective of the present work is to compare two measurement techniques: the distance between genae, used in the method of Dyar (1890) and the distance between frontal setae, used by Podoler (1978). The first one is commonly used to determine the larval instar in Lepidoptera. We measured cephalic capsules and the distance between frontal setae of Copitarsia incommoda. Based on our results, we concluded that Podoler's technique is more precise than that of Dyar.
Palavras-chave : head capsule; instar; frontal setae; gena; Copitarsia incommoda.