Psychotic disorders are severe mental disorders that cause abnormal thinking and perceptions. People with psychoses lose touch with reality. Two of the main symptoms are delusions and hallucinations.
How many dragonfly species are there? Answer: The actual number of described species of Suborder Anisoptera (dragonflies) at this time is 2,874. The Suborder Zygoptera (damselflies) consists of about 2,698 species, and the Suborder Anisozygoptera contains only 2 species. Thus, there are 5,574 recognized species of odonates at the present time.
Dragonflies are in one suborder of the Odonata, and their relatives, the damselflies, are in another suborder. Many people mistake the damselfly for the dragonfly, because they look alike. Adult damselflies have thinner, more delicate bodies than those of dragonflies. This you can see even when they are flying.