Larval-mass effect of native species of flies of forensic interest.

ACOSTA, X; ANDREA X, GONZÁLEZ REYES; CENTENO, N D; MEJÍA-MONTAÑO E; FLORES V; PALACIOS E; LOBO C; OCHOA C; CORRONCA, J A

San Luis

Otro; XXXVII Reunión Científica Anual de la Sociedad de Biología de Cuyo.; 2019

In forensic entomology, the temperature experienced by feeding larval instars is useful to estimate the age of larvae easily from itssize (length and weight); however, ―larval-mass effect‖ that occurs due to pronounced gregarious behaviour that larvae present whenfeeding leads to an increase in local temperature. The objective of this work was to investigate the larval-mass effect on larvalcultures of Lucilia purpurascens and Lucilia ochricornis subjected to fluctuating temperatures in the field. The experiments wereperformed during the spring, summer and autumn seasons. Eggs of flies were obtained from wild mothers, and for each species wereused three replicates of 250 larvae, placed on a piece of fresh beef liver of 300 g. Subsequently, they were conditioned in boxes withfine net and in an enclosure wired up and exposed to the external environment. Temperature and humidity data (external andinternal) were measured. With software SPSS with a level of significance p