The spider belongs to Arthropoda and are not insect,
The housefly Musca domestica Linnaeus is an insect of the order Diptera
Ants are social insects of the family Formicidae and with wasps and bees,
Flea is the common name Aptera insects belonging to the order Siphonaptera.
The mosquito belongs to the family of Culicidae with about 3,500 species worldwide.
Cockroaches are insects of the order: τα Blattodea(Blattaria).
Bed bugs, bed-bugs, or bedbugs are parasitic insects of the cimicid family that feed exclusively on blood.
The rat is a mammal belonging to the order of Rodents.
Mites, along with ticks, are small arthropods belonging to the subclass Acari
The mouse in zoology refers to a small animal of the class of mammals, and the order of rodents.