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axyridis, like other lady beetles or ladybirds, uses isopropyl methoxy pyrazine as a defensive chemical to deter predation, but also contains this chemical in its hemolymph at much higher concentrations than many other such species, along with species/genus-specific defensive compounds such as harmonine.
Iridomyrmecin is a defensive chemical, classified as an iridoid, isolated from ants of the genus Iridomyrmex.
Iridomyrmecin, a defensive chemical produced by Iridomyrmex