Husbandry Information for D. nigrospiracula

Below are two food recipes to raise these flies


  1. Obtain a piece of Saguaro cactus (Carnagiea gigantea) or Cardon cactus (Pachycereus pringlei). Dehydrate this by heating, but the temperature must remain below 150°C. Grind into a powder with a blender. Take a vial of Wheeler-Clayton food and remove half the food. Add back distilled water to the original volume. Add the saguaro powder and mix until the consistency is very thick, like mud. Make deep grooves in this top layer with a pair of forceps.
  2. Use autoclaved Saguaro cactus (Carnagiea gigantea) or Cardon cactus (Pachycereus pringlei). Prepare Saguaro-potato food.


18 - 25°C is the range they will grow at. They grow slower at the lower temperatures. Embryo to adult will take 20 to 30 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

If there is not enough cactus in the food, the larvae will not develop to the third instar. We add ~ 1/2 tsp. dried cactus to each vial, a few drops of filtered water, and mix it all up into the food. If you are trying to expand your stock, you will need to transfer the adults to new food about every 3 days.

Adults require many days to reach sexual maturity; thus, it is necessary to mix adults of different ages when starting new vials.