Final answer:
Diondre is experiencing a somatic delusion, which relates to the false belief that something extremely abnormal is happening to his body.
Step-by-step explanation:
Diondre's belief that spider eggs have been implanted underneath his fingernails represents a type of delusion known as a somatic delusion. Somatic delusions involve false beliefs that something highly abnormal is happening to one's body. Unlike grandiose or paranoid delusions that relate to one's importance or fears of persecution, somatic delusions specifically pertain to the body or physical experience. Despite any evidence to the contrary, the belief remains, demonstrating the distinct character of delusions as firmly held inaccurate beliefs that are unaffected by rational argument or evidence.
Learn more about Somatic Delusion