acting consul
A diplomatic official who temporarily performs the duties of a consul. Used in formal and official contexts.
He served as acting consul at the Consulate-General of Japan in London.
Consul (permanent position), while 代理領事 is a temporary acting consul.
Consul general, a higher-ranking permanent diplomatic post.
Compound of 代理 (dairi, 'acting, proxy') and 領事 (ryōji, 'consul').