Chrysomya albiceps specimens were derived from colonies
kept under laboratory conditions. The oviposition period,
total number of eggs-mass and the weight of the eggs-mass
(average/female) presented significant differences between
colonies regarding the sexual ratio of 1male/1female
(situation I), when compared to the other ratios
(1male/3female, situation II), (1male/5female, situation III),
(3male/1female, situation IV) and (5 male/1female, situation
V). It was ascertained that the increase in the proportion
of females, resulted in higher weight and greater number of
ovipositions and lenghtening of the period of oviposition,
leads to a decrease in their lifespan.