De-novo-biosynthesis
Guides
Ips paraconfusus
California fivespined ips, California fivespined ip
Ips paraconfusus is a bark beetle species native to western North America, notable as the first bark beetle from which a pheromone was identified in 1967. Males produce aggregation pheromones ipsenol and ipsdienol primarily through de novo biosynthesis, with minor contribution from host-tree myrcene conversion. The species colonizes various pine species, with strong preference for ponderosa pine over non-host trees such as white fir.