What happens when a caterpillar does not hatch?

When a caterpillar does not hatch, it typically means that the egg was not fertilized or was affected by unfavorable environmental conditions, such as temperature or humidity. In some cases, the embryo may die due to disease or predation. If the egg remains unhatched for an extended period, it may eventually decompose or be consumed by other organisms. Overall, the failure to hatch results in the loss of potential future butterflies or moths.