This paper reports on insect species not previously associated with cantharidin, the terpenoid defense mechanism of blister beetles. (Meloidae). Species from the following taxa were observed and collected: Miridae (Hemiptera); Endomychidae, Pyrochroidae, Anthicidae (Coleoptera); Ceratopogonidae, Sciaridae (Diptera), and Braconidae (Hymenoptera). In addition to listing the associations, a discussion of cantharidin orientation is presented along with preliminary hypotheses to explain these intriguing examples of coevolution.