一、前言 小蠹虫属于鞘翅目棘胫小蠹科(Scolytidae),分布于全世界森林里,大多数种类依赖枯立木或断枝进行繁殖,有些种类则直接危害健康的树木。这个科的许多种类都具有在寄主树上聚集的能力,这类聚集作用是受雌雄两性释放的聚集信息素以及其它化学刺激因素,诸如寄主散发的特殊气味物质等的调节。它们利用这一套有效的化学通信手段,在短期内大量聚集 I. Introduction Bark beetles belong to the genus Coletiidae Scolytidae, distributed throughout the world’s forests, most species dependent on dead trees or branches to breed, while others are directly endangering healthy trees. Many species of this family have the ability to aggregate on the host tree, an aggregation of aggregated pheromones released by both sexes and other chemical stimuli, such as the regulation of specific odorant emissions from the host. They make use of this set of effective chemical communication means to gather in a large amount in a short period of time