Provided is a diaryl-azole compound represented by formula (1)wherein R1-3 are C1-6 chain hydrocarbon, etc. p=0-3 q=0-4 n=0-2 X is N, CH, etc. Ar is phenyl, or 5-6-member aromatic heterocyclic ring G is C1-6 chain hydrocarbon, etc. and Het is a group selected from formulas (H1) (H2) (H3) described in the specification. The diaryl-azole compound of formula (1) has an excellent controlling effect against arthropod pests. Also provided are a control agent having an excellent controlling effect against arthropod pests, and a method for controlling arthropod pests in which the control agent is used.
