Synergus is a genus of gall wasp in the tribe Synergini. It is found worldwide. Species in Synergus are generally inquilines, which means they use the galls of other species of gall wasps. Synergus us

Galls or cecidia are a kind of swelling growth on the external tissues of plants. Plant galls are abnormal outgrowths of plant tissues, similar to benign tumors or warts in animals. They can be caused