Amide derivatives, process for preparation thereof and use thereof as insecticide

A compound represented by Formula (11):

• wherein X1a, X2a, X3a and X4a each represent a hydrogen atom, a C1-C3 alkyl group, a trifluoromethyl group, a hydroxyl group, an amino group or a halogen atom;
• Ra and Rb each represent a fluorine atom or a C1-C4 perfluoroalkyl group;
• Rc represents a hydroxyl group, a group —O—Rd (wherein Rd represents a C1-C3 alkyl group, a C1-C3 haloalkyl group, a C1-C3 alkylsulfonyl group, a C1-C3 haloalkylsulfonyl group, an arylsulfonyl group, a C1-C4 alkylcarbonyl group or a C1-C4 haloalkylcarbonyl group), a chlorine atom, a bromine atom or an iodine atom;
• R1a and R2a each represent a hydrogen atom, a C1-C3 alkyl group, a C1-C3 haloalkyl group, a C1-C3 alkoxy group, a C1-C3 haloalkoxy group, a C1-C4 alkylthio group, a C1-C4 haloalkylthio group, a C1-C4 alkylcarbonyl group or a C1-C4 haloalkylcarbonyl group;
• Y1a and Y5a each represent a C1-C4 alkyl group, a C1-C4 haloalkyl group, a C1-C4 alkylthio group, a C1-C4 haloalkylthio group, a C1-C3 alkylsulfinyl group, a C1-C3 haloalkylsulfinyl group, a C1-C3 alkylsulfonyl group, a C1-C3 haloalkylsulfonyl group, a cyano group, a hydroxyl group or a halogen atom;
• Y2a and Y4a each represent a hydrogen atom, a C1-C4 alkyl group or a halogen atom;
• and
• G2a represents an oxygen atom or a sulfur atom.