Host associations between xylophagous longhorn beetles (Coleoptera: Cerambycidae) and American commodity tree species from Chinese collection sources

Abstract

A small number of longhorn beetle species (Coleoptera: Chrysomeloidea: Cerambycidae) have the potential to become invasive forest pests. International trade in live plants and wood packaging material are known invasion pathways for longhorn beetles. Once an invasive pest is intercepted in a new region, a rapid pest risk analysis is often needed to determine the appropriate response. For accurate risk quantification, natural history evidence is necessary. This information is also vital in preventing introduction. This study gathered insect collection data, especially references to host plants, of xylophagous longhorn beetles from the Institute of Zoology, Chinese Academy of Sciences, Beijing, China. Beetle associations with three important host groups were investigated: Fagaceae, Citrus spp., and avocado (Persea americana). We performed a systematic literature review to identify previously documented cerambycidae associated with these plants. Here, we report insect-plant host associations for 39 species of longhorn beetles based on a review of the literature; 43 interactions were documented, 10 interactions were novel. No host associations were recorded with avocado in China. This information serves as a foundation for pest risk analysis in determining threats posed by potentially invasive longhorn beetles into new regions.