Note: Please understand that that insects do not adhere to man-drawn borders on a map as such they may be found beyond the general "reach" as showcased on our website. Insects are typically drawn to areas by available food supply, weather, environmental factors, water supply, mating patterns etc... and are quite territorial. The listing below is a general indicator of insects, bugs and spiders that may be found in a given state.
There are a total of (389) Illinois Butterflies and Moths found in the Insect Identification database. Entries are listed below in alphabetical order.