Bald-faced hornet varies depending on an individual's life cycle stage and geographic location. Adult hornets are carnivorous, and will prey upon several insect types. They have been observed consuming meat, spiders, fruit and insects. Adults will also drink flower nectar which they feed to their larvae. Female Bee Moths (Aphomia sociella) have been known to lay their eggs in Bald-faced hornet nests. The hatched larvae will then proceed to feed on the eggs, larvae, and pupae left unprotected by the wasp, sometimes destroying large parts of the nest as they tunnel throughout looking for food. Each spring, queens that were born and
Bald-faced hornet and colonies whose work force diminishes too early in the colony's life cycle will suffer a greater overall total loss in reproductives. A colony is divided into sterile males, female workers and the queen. All females are born with reproductive capacities. Caste systems are determined by larval feeding regime. G.T. Felippotti examined caste distribution amongst females in five small cell colonies and six large cell colonies. Small cell colonies had one queen and 17–21 female workers. Large cell colonies had 2–6 queens and 10–52 workers. Morphological comparisons revealed that queens are always larger than workers in the same colonies. Cuticular