LARVAL- MASS EFFECT OF NATIVE SPECIES OF FLIES OF FORENSIC INTEREST

ACOSTA X; GONZALEZ REYES A; CENTENO N; MEJIA MONTAÑO E; FLORES V; PALACIOS E; LOBO C; OCHOA C; CORRONCA J

San Luis

Congreso; XXXVII Scientific Meeting; 2021

Cuyo Biology Society

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