ABSTRACT
The family Chrysomelidae is well known for having numerous pest species most of which are host specific to certain plants. No green plant escapes from destruction by species of this family. Chrysomelids are highly evolved phytophagous beetles so one might expect more host plant records for the family. Arnett Wilcox has provided numerous host plant records for the Northeastern North America species. P. Jolivet and E. Petitpierre have done considerable research on the host plant associations of chrysomelids, especially the subfamily Chrysomelinae of which Leptinotarsa is a member. Jolivet categorizes types of host plant relationships according to the specific ways in which insects select hosts. The majority of work on the genus Leptinotarsa and its host plant associations has been done by Ting H. Hsiao of Utah State University. Jolivet's classification of host plant relationship for phytophagous insects consists of four major categories, so called “normal host plants” as follows: monophagy, oligophagy, polyphagy, and pantophagy.
