中文摘要：

松墨天牛（Monoohamus alternatus）是危害针叶树的重要蛀干害虫，而且是松材线虫病（Bursaphelenchus xylophilus）的主要传播媒介昆虫。本文综述了松墨天牛与寄主植物之间、松墨天牛种内及松墨天牛与松材线虫之间的化学生态学研究进展。在松墨天牛与寄主植物相互关系中，寄主植物中的萜烯类挥发物在松墨天牛选择取食和产卵寄主时发挥重要的调节作用，这些挥发物常常因寄主危害与否而发生改变，并对天牛表现出性别差异；寄主中的化学物质如碳水化合物、氨基酸、甾醇、磷脂和黄酮等能够刺激或驱避天牛的取食和产卵行为。松墨天牛种内通讯过程中，两性天牛的吸引、求爱和交尾等生殖行为由性信息素所引起；雌天牛分泌的产卵忌避信息素能够调节产卵刻槽的空间分布，有助于卵的分散，避免下一代幼虫对生存空间和食物的竞争。松墨天牛与松材线虫之间化学生态关系的物质基础为寄主植物、天牛及线虫产生的单萜、CO2及不饱和脂肪酸，它们调控线虫向蛹室的聚集、进入虫体和脱离虫体等行为。最后，展望了松墨天牛化学生态学的研究方向。

英文摘要：

Japanese pine sawyer Monochamus alternatus Hope is a dangerous insect of conifer trees in Asia, and a main vector of pine wood nematode Bursaphelenchus xylophilus, the causal agent of destructive pine wilt disease. In this paper, the research progress on the chemical ecology of M. alternatus was reviewed, aimed to provide a brief overview on the interactions between M. alternatus and host plants, intraspecific interactions of M. alternatus, and interactions be- tween M. alternatus and B. xylophilus. In the interactions between M. alternatus and host plants, the volatile terpenes of host plants play an important role in regulating the feeding and ovipositing of M. alternatus adults. The compositions of the terpenes and their relative contents have large variations between healthy and damaged host plants, and M. alternatus has a significant sexual bias response to some of the volatiles. In addition to the volatiles, the carbohydrate, amino acid, phytosterol, phospholipids, and flavone in host plants can act as stimulants or repellents to regulate the feeding and ovipositing behaviors of M. alternatus. Sex pheromone is hypothesized in the forms of contact pheromone and short- or long-range sex pheromones that initiate the reproductive behaviors such as attraction, courtship, mounting, and copulation, etc. The oviposition-deterring pheromone originated from female reproductive gland or hindgut can deter gravid females ovipositing on oviposition scars occupied by eggs or larvae, which is confirmed to be helpful in spacing eggs and reducing the mortality in early larval stages due to conspecific competition. Chemicals such as monoterpenoids, CO2, and unsaturated fatty acid produced by host plants, sawyer beetle, and pine wood nematode could be the basis of chemoecological relationship between pine wood nematodes and their vector insects. These chemicals control the behaviors of nematode＇ s assembly to pupae chamber, and its entering in or divorced from insect body. Future research directions on the chemical ecology o