This booklet was written to help Senior 4-H'ers preparing for the National 4-H Forestry competition held each year in Jackson's Mill, West Virginia. Flash cards and links to various external websites about individual insects' appearance and habitats are posted on the website for the national competition (http://www.aces.edu/n4hfi/page4.html), but no single document is available that summarizes the information that students need when they're beginning their studies. This booklet has been written to fill that gap.