Maintaining testacea group flies

Food requirements

We grow these flies on banana Opuntia food. 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.

Temperature

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

Pupation conditions

The flies will typically crawl up the sides of the vial in order to pupate, and then will shrivel and die (see photo below). The vials must be papered in order to generate large numbers of healthy pupae.