Many different species of both ladybug AND crane fly. The typical field guide will illustrate just a few, but is a very good thing to have when trying to learn about insects and their behavior. I like the Audubon Field Guide to North American Insects, and made it a required text for classes that I taught.

Don't expect any ONE book to tell or show you everything. Between a good guide or two (or three or four) and the internet, there's not much that you will not be able to find out about!

Here is a link that might be useful: Crane fly information