(1S,5R)-(-)-Frontalin is an aggregation pheromone secreted from thesouthern pine beetle (Dendroctonus frontalis), the western pine beetle (Dendroctonus brevicomis), and the Douglas-fir beetle (Dendroctonus pseudotsugae).

• (1S，5R)-(-)-Frontalin发现存在于南叶松昆虫(Dendroctonus frontalis)，西叶松昆虫(Dendroctonus brevicomis)和Douglas-fir昆虫(Dendroctonus pseudotsugae)的性信息素。