The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From McClure Services:
This app is developed by Purdue University experts to assist students of entomology in recognizing and identifying the most common insects. It contains 150 high resolution insect photographs together with their common name, order, and family identifications. Accompanying identification facts and photos are descriptions of the insects appearance, life cycle, behavior and even information about where to find them. Search by name or browse through the photographs until you find a match. Test your identification skills by taking an interactive identification quiz of the insects as they appear on your screen. Automatic grading will show how you fare.This app can be used time and time again to hone insect identification skills or prepare for insect judging competitions. It may be used by educators, beginning students of entomology, hobbyists, Master Gardeners or home-owners seeking an identification of a common insect.