Maintaining immigrans group flies

Food requirements

We grow these on our standard cornmeal or on banana food. The D. formosana and D. hypocausta will do better on Wheeler-Clayton food.


18 - 25°C is the range they will grow at. They grow slower at the lower temperatures. Embryo to adult will take 17 to 25 days depending upon the temperature.

Pupation conditions

The flies will typically crawl up the sides of the vial in order to pupate. However, the addition of paper along the side of the vial when there are many larvae present is helpful if you are trying to expand the stock.

Special requirements

see D. hypocausta page.