“…They are responsible for a variety of stimuli, especially responses to information chemicals related to host searching, positioning, and food acceptance (Hu, Li, & Feng, 2020; Jefferis, 2005; Lu et al, 2011; Shi et al, 2021). Related studies on long‐horned beetles showed that the main function of the labial and maxillary palps is to participate in host selection, mating, and oviposition (Hall et al, 2019; Yang, Ren, Wang, Xu, & Zong, 2017). The study of the shape and distribution of different sensilla will improve the knowledge on the efficiency and sensitivity of olfactory perception, which is closely related to the specific behaviors of insects (Ren, Wu, Shi, Zhang, & Luo, 2014).…”