N -(3-methylbutyl)acetamide mediates male–male courtship in Bactrocera dorsalis through behavioral threshold modulation - Yuhua Zhang; Yaoyao Chen; Wenlong Chen; Shuyuan Xing; Xirui Jin; Yuzhe Long; Zhihang Xu; Guohua Zhong; Xin Yi (Proceedings of the National Academy of Sciences, 2026)