Cyclic amine compounds represented by formula (1) ##STR00001## or salts thereof or N-oxides thereof, wherein Cy.sup.1 represents an unsubstituted or substituted aromatic ring; X represents oxygen, sulfur, unsubstituted or substituted nitrogen, sulfinyl, or sulfonyl; R.sup.1.sub.a and R.sup.2.sub.a, R.sup.1.sub.a and R.sup.4.sub.a, R.sup.2.sub.a and R.sup.3.sub.a, or R.sup.3.sub.a and R.sup.4.sub.a form saturated rings together; R.sup.1.sub.a, R.sup.1.sub.b, R.sup.2.sub.a, R.sup.2.sub.b, R.sup.3.sub.a, R.sup.3.sub.b, R.sup.4.sub.a, R.sup.4.sub.b, and R.sup.5 which do not form the saturated rings are each independently hydrogen, hydroxyl, halogen, unsubstituted or substituted amino, nitro, or an organic group; Cy.sup.2 represents an unsubstituted or substituted aromatic ring with a proviso that Cy.sup.2 is an unsubstituted or substituted heteroaromatic ring when R.sup.1.sub.a and R.sup.2.sub.a form a saturated ring together and Cy.sup.1 is an unsubstituted or substituted phenyl, and Cy.sup.2 is a substituted pyridin-2-yl having one or more cyano as a substituent when Cy.sup.1 is an unsubstituted or substituted phenyl and Cy.sup.2 is a pyridin-2-yl.