Fruit Flies. Either Hydei or Melanogaster. Just $10.40 per large culture, delivered via USPS Priority Mail! Get some great deals when you order in quantity.
Melanogaster Flightless: these flies do not have wings and cannot fly.
Hydei Fruit Flies: This is a larger species than Melanogaster. These are great for feeding small lizards and large insects.
Melanogaster are 1/16" (same size as a pinhead crickets). Hydei are 1/8". Both cannot fly. Great for fish fry or as a variation to your fish diet!