Maintaining nannoptera group flies

Food requirements

We grow these flies on banana Opuntia food (except the D. pachea, which we grow on Wheeler-Clayton food with the addition of Senita cactus). You can prepare the banana-malt food without the cactus powder, because the Opuntia powder is merely a consequence of how our kitchen prepares the food. The D. nannoptera larvae are affected by some mold inhibitors, so do not use the standard recipe for cornmeal food.


18 - 25°C is the range they will grow at. They grow slower at the lower temperatures. Embryo to adult will take about 15 to 20 days depending upon the temperature.

Pupation conditions

The addition of paper along the side of the vial when there are many larvae present is helpful.

Special requirements

The adults have long maturation times. One solution is to combine flies of different ages when starting new vials.