NOVELTY - The system comprises a container or a tank (1) provided with a unit (8) for ventilation and temperature control, a unit (3) for distributing the waste to be treated inside the container and for removing the waste at an end of the treatment, an automatic system for distributing the larvae or eggs inside the container containing waste, a system for inducing a migration of the larvae in a desired stadium of development of the system outside a waste mass by temperature and humidity controlled conditions, and a unit for collecting and storing larvae after same are used for the waste treatment.    USE - The system is useful for bio-treatment of organic waste using insect larvae, eggs or pre-pupas, which is useful for producing: conditioners for fossil fuels of natural origin; polymeric and bio-polymeric films; and fodder for animals (all claimed), and for the bio-stabilization of undifferentiated urban solid waste, where the organic waste includes human and animal derived waste and food industry waste.    ADVANTAGE - The automatic system ensures effective, economical and continuous bio-treatment of organic waste using insect larvae in an environmentally friendly manner with high efficiency and quality.    DETAILED DESCRIPTION - The system comprises a container or a tank (1) provided with a unit (8) for ventilation and temperature control, a unit (3) for distributing the waste to be treated inside the container and for removing the waste at an end of the treatment, an automatic system for distributing larvae or eggs inside the container containing waste, a system for inducing a migration of the larvae in a desired stadium of development of the system outside a waste mass by temperature and humidity controlled conditions, a unit for collecting and storing the larvae for the waste treatment, and a controlled temperature storage system for larvae or eggs conservation. The waste distribution unit and the container are configured so that the waste distribution unit is introduced the waste inside the container by dumping a new waste to be treated over the waste layers yet treated by the larvae. The container is provided on an upper surface of the container with a removable cover (7), and is preferably shaped approximately as a parallelepiped having a width of 1-2 m and a length of 5-20 m. The cover is made up of a sliding cloth with reduced heat transmission coefficient. The ventilation control unit comprises a fan sucking air from the tank using an air inlet, and conveys the sucked air to a filtering and smell removing system. The openings are provided in walls of the container for air admission from outside. The air is possibly pre-heated by a system allowing the heat to be recovered by heat exchange with the air ejected by the ventilation control unit. The temperature control unit inside the container comprises pipes passing in a bottom of the bio-reactor, where a temperature controlled thermal-vector fluid flows through the pipes. A moving unit for entering waste and outgoing cast from the container comprises a bucket mounted on guides configured so that the bucket is allowed to operate on the whole extension of the container. The unit for collecting and storing the larvae for the waste treatment comprise ramps (15) to favor the migration of the larvae from the larvae collectors provided with funnel openings and conveyor belt system. The conveyor belt system: comprises holes provided in the side walls of the tank configured so that the larvae are allowed to go out from the container through the holes without dragging waste, and inclined tracks for collecting the larvae once gone out, and a conveyor belt configured so that the larvae moving on the inclined tracks are collected; and favors the migration of the larvae and their collection and storage. The ramps are provided with an inclination such that the ramps are climbed by the larvae at the pre-pupa stadium and a top of the ramps is placed at the funnel openings of the larvae collector. The larvae collector comprises an inclined pipe through which the larvae are deposited on the system of conveyor belts that convey the larvae in the storage area. An INDEPENDENT CLAIM is included for a method for the bio-treatment of organic waste by larval stadium insects.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic longitudinal view of a waste treatment system.    Container or tank (1)    Waste distributing unit (3)    Partitions (5, 6)    Removable cover (7)    Ventilation control unit (8)    Ramps. (15)