Groups of Box Elder Bugs seek out dry, sheltered locations to hibernate through the winter. Box Elder Bugs sometimes fall prey to birds, spiders, rodents, and praying mantises, but they have …

The list below showcases all Illinois Insects (1,353 Found) currently in the InsectIdentification.org database. Entries are listed below in alphabetical order (A-to-Z).

Jun 16, 2025 · In the last few weeks I've seen several people I know in Illinois and Wisconsin posting photos of tiny, whimsical bugs that look like this: Have you ever seen a bug like that …

Jul 1, 2025 · Many homeowners in Algonquin and the broader Northern Illinois region are discovering that their homes have been invaded by springtails —and summer 2025 is shaping …

Aug 16, 2023 · Cluster flies are some of the insects you will see in Illinois habitats and other parts of the country. These flies are similar to houseflies as they have behaviors and life cycles just …

This tool was developed by Preservation staff for use at University of Illinois libraries. The table contains information about bugs that commonly appear on traps in this area, including …

Our own Angella Moorehouse has been photographing plants and bugs in Illinois for years and she has put together a free downloadable guide to many of the flies she has photographed in …

Oct 3, 2024 · When Illinois' weather starts to turn colder at this point in the fall, there are lots of bugs that have one objective: to get inside your home to ride out the bitter cold conditions that …

Many gnats and midges are attracted to light and can be a nuisance, landing on people or entering homes or businesses. These tiny flies do not feed and only live long enough to mate, …

As of 2004, five insects are on the threatened or endangered list for Illinois. The insects are three species of prairie-inhabiting skippers (butterflies), a noctuid moth, and the Hine’s emerald …