Publications

dietary specialization influences the efficacy of larval tortoise beetle shield defenses.	plant chemical defenses and escape from natural enemies have been postulated to select for dietary specialization in herbivorous insects. in field and laboratory bioassays, we evaluated the effectiveness of intact and chemically modified larval shield defenses of the generalist chelymorpha alternans and the specialists acromis sparsa and stolas plagiata (chrysomelidae: cassidinae) against three natural predators, using larvae reared on two morning glory (convolvulaceae) species. we assessed whet ...	2005	16001225
cuticular extracts from acromis sparsa (coleoptera: cassidinae) mediate arrestment behavior of the commensal canestriniid mite grandiella rugosita.	astigmatid mites in the family canestriniidae are often closely associated with tortoise leaf beetles (chrysomelidae: cassidinae). for example, the survival of the commensal canestriniid mite grandiella rugosita depends on dispersal to the cassidine beetle acromis sparsa. here, we tested whether the beetle cuticle provides chemical cues for host recognition for g. rugosita. in two-choice assays with cuticular extracts from a. sparsa and the co-occurring, non-host cassidine chelymorpha alternans ...	2014	25224678