Vespa simillima

The Yellow hornet (Vespa simillima), including the subspecies known as the Japanese hornet or Japanese yellow hornet (Vespa simillima xanthoptera) (キイロスズメバチ^?) is a common hornet species in the Eastern Hemisphere. It should not be confused with the Asian giant hornet (Vespa mandarinia), which is sometimes referred to as the Japanese giant hornet, a subspecies of the former.

Predators

Along with other insects in Japan, they are prey to the Japanese giant hornet. Since this predator is prey to the much bigger hornet, its nest have been known to be deserted after the giant hornet attacks. The yellow hornet only attacks when their chance comes as they outnumber their giant enemy who attacks alone.