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Acta zoológica mexicana

versión impresa ISSN 0065-1737

Resumen

GARCIA-ESPINOZA, Fabián et al. Larval development and degree day requirements of Chrysomya rufifacies (Diptera: Calliphoridae) in Torreón, Coahuila during spring and summer. Acta Zool. Mex [online]. 2012, vol.28, n.1, pp. 172-184. ISSN 0065-1737.

Diptera is one of the major groups of insects that contribute to organic matter decomposition, including several species of Calliphoridae and Chrysomya rufifacies (Macquart) has been recorded as the principal species that colonizes carrion in the Comarca Lagunera of Coahuila. An experiment was conducted during spring and summer of 2010 in order to study the larval development as well as to know the complete life cycle of C. rufifacies. It was divided in two stages at Universidad Autónoma Agraria Antonio Narro-Unidad Laguna facilities. In the first stage 4 chicken carcasses were used, whereas in the second, 4 pig heads were used as necrotraps. Pregnant females of C. rufifacies were collected, which were reared to obtained eggs and study the biological cycle until adult emergence. Five larvae specimens were measured every four hours, recording its length and diameter and instar changes. Temperature in the breeding room was recorded to calculate degree days accumulated (DDA) for this species. During spring C. rufifacies accumulated 192.57 DD while in the summer it accumulated 190.69 DD, these amounts were necessary to complete the cycle from the egg to adult emergence. During spring and summer C. rufifacies pupated in 96 hours after egg hatching. The results of this study contribute to knowledge of C. rufifacies biology as well as increasing the sarcosaprophagous fauna database of the Comarca Lagunera, especially in Torreon, Coahuila

Palabras llave : Forensic entomology; Comarca Lagunera; physiological time; UAAAN-UL; México.

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