Xinjiang fieldwork uncovered Chlorocytus papahemii, a newly identified pteromalid wasp, and also recorded Eurytoma curculionum in China for the first time.
Sugar beet researchers found the species by rearing larvae from leaf petioles damaged by Lixus subtilis, a destructive weevil that has repeatedly broken out in Xinjiang.
Chlorocytus papahemii sits at a fourth trophic level: it parasitizes Eurytoma curculionum, which itself attacks the crop-damaging weevil larvae.
That hyperparasitoid role could complicate biological pest control because it kills a beneficial primary parasitoid even as the study maps the fuller food chain needed for better weevil management.