Abstract: A compound represented by formula (I) or formula (II) has a pest control effect. (In the formulae, Q1 represents a pyrazine ring or the like; G1 represents a nitrogen atom or a carbon atom; X1 represents an alkyl group or the like; m represents the number of X1 moieties; A represents an oxygen atom or the like; Y represents a single bond or the like; Q2 represents a benzene ring or the like; X2 represents an alkyl group, an aryl group or the like; X3 represents a halogeno group or the like; n represents the number of X3 moieties; Zq- represents a counter ion; and q represents 1 or 2.

Abstract: Provided are: a compound represented by Formula (I) or Formula (II) (wherein A represents an oxygen atom or a sulfur atom, X1 represents a substituted or unsubstituted C1-6 alkyl group or the like, m is any integer of 0 to 5, X2 represents a C2-8 haloalkyl group or the like, X3 represents a halogeno group or the like, n is any integer of 0-4, Zq? is a counter ion, and q is 1 or 2); and a pest control agent containing the compound as an active agent.

Abstract: A compound represented by a formula (I) or a formula (II): (in the formulas (I) and (II), A represents an oxygen atom or a sulfur atom, X1 represents a halogeno group or the like, m represents the number of X1 groups and is any integer of 0 to 5, Z represents a group represented by a formula (Z-1) or a formula (Z-2), a bond marked with a symbol * means a bond with a carbonyl group or a thiocarbonyl group in a pyridinium salt, Y represents a substituted or unsubstituted C2-6 alkenylene group, Q represents a naphthalene ring or a 6- to 10-membered heteroaryl ring, X2 represents a substituted or unsubstituted C1-6 alkyl group or the like, X3 represents a halogeno group or the like, n represents the number of X3 groups and is any integer of 0 to 4, Zq? represents a counter ion, and q represents a valence of the counter ion and is 1 or 2.