 Most scientific and public attention has been focused on the conservation of larger, charismatic vertebrates, and relatively fewer studies have been done on insect groups, especially Diptera, Orthoptera and Hemiptera.Data from the past from which to calculate trends is largely unavailable, and what does exist is mostly related to Western Europe and North America.Insect population assessments that have been undertaken were largely concentrated on the more popular insect groups, butterflies and moths, bees, dragonflies and beetles.