Apoica pallens
Apoica pallens is a caste species with morphological differentiation between females. These castes are classified as workers and queens. This is based on the size of ovaries. The differences between the castes of queens and workers are formed during the larval stage. Queen-destined larvae show faster growth rates in various bodily compartments than worker-destined larvae. This results in individuals with different shapes even though larvae are about the same size.