Iso-: equal.
Isolate: to separate out from others; occurring alone.
Isomers: that series of Coleoptera in which the tarsi have an equal number of joints on all feet.
Isomerous: with equal number of tarsal joints on all feet := homoeomerous.
Isomorphous: having the same form, appearance or construction.
Isopalpi: that series of Trichoptera in which the palpi of both sexes have the same number of joints.
Isoptera: equal winged: an ordinal term for insects with four, similar, net-veined wings; mouth mandibulate; thoracic rings similar, loosely jointed metamorphosis incomplete: the Termitidae. {Scanner's note: In modern nomenclature the Isoptera constitute the order of all termites; the Termitidae are just one family within the Isoptera.}
Isotypical: a genus described from more than one species, all of which are congeneric.
-itus: = -atus; q.v.
-ius: suffix; having the power or ability to.