An introduction to scientific classification or taxonomy can be as easy as remembering ‘King Philip Came Over For Good Spaghetti’ (Kingdom, Phylum, Class, Order, Family, Genus, Species). For the bug enthusiast, a personalized fact file of bugs that live around the house helps greatly in the learning and memorizing of the different classifications (and a little anatomy while you’re at it). I think it would be less interesting (especially for children) to begin from a manual of bugs that one has never and may never meet. Moths are a nice starting point because everyone has them, one can attract them at night with the porch light, and their faces are so cute and furry.