Methods and apparatus are provided for culturing Dipteran insects, particularly Hermetia illucens. The apparatus include a mating chamber that contains adult insects, and adaptations for the scheduled and/or metered introduction of inputs, such as: empty egg laying substrate, prepupae, bedding, carbohydrate (sugar) and/or water); and, the scheduled and/or metered collection of outputs, such as: egg laying substrate containing eggs, exuvia and bedding, and/or dead adults. The systems may also include adaptations to optimize the use of space, including the use of controlled environmental conditions within a confined space.