2-nitrogen-containing heterocyclic derivative having an imino group and a pest control agent comprising the same

Nitrogen-containing heterocyclic derivative having a 2-imino group represented by the following formula (I) are provided: [Formula 1] [In the formula, Ar is an optionally substituted phenyl group, a hetero ring or 4-10 membered heterocycloalkyl group, 5-6 membered may be substituted, A is comprises one or more nitrogen atoms 5 shows a heterocycle having an unsaturated bond of 10-membered, at an adjacent position to the nitrogen atom present on the ring, has an imino group substituted in R group, Y is a hydrogen atom, a halogen atom, a hydroxyl group, a halogen atom substituted C1~C6 may alkyl group, optionally substituted C1~C6 alkyl group by a halogen atom, a cyano group or a nitro group,, R is the following formula (a) ~ (e) by, (y) and group ## STR2 ## represented by (z) It shows one of the.