Leishmaniasis is a terrible disease caused by protozoan parasites that is transmitted by the bite of certain species of sand fly. This disease is also known as Orient Boils, Baghdad Boil, black fever, sandfly disease, and Dum-Dum fever.
A solitary insect lives and hunts by itself. I does not have a social structure or a colony of any kind.
Termites.
bee
Firefly
Hornet
Bees are one example of a social insect that lives in colonies. Ants are another common example. Both types of insect have queens and various types of workers.
ants, bees, wasps
Termiter
Clown fish
Spider which lives 20 years
grasshopper
ants and bees