Painted Lady Caterpillar Food: Enough to Grow 33 Butterfly Larvae Did your Painted Lady butterflies reproduce and you need more caterpillar diet? Rearing Painted Ladies yourself? This 8oz cup of pre-mixed diet will feed up to 33 hungry Painted Lady caterpillars. It can be stored in the refrigerator up to 3 months. This item is FOOD ONLY. For feeding Painted Lady caterpillars you already have. Same food used by professional breeders for excellent results.