ILLINOIS IDENTIFICATION GUIDES
Pest & Wildlife Identification Library
Understand the insects, rodents and wildlife found around Illinois homes.
Use our library to learn about appearance, behavior, habitat, risks and common signs of activity. Each guide is educational and connects to professional service information when treatment or removal is needed.
Household Pest Guides
Identify common insects and rodents, understand why they enter homes and learn the signs that may indicate professional pest control is needed.
Illinois Wildlife Guides
Learn about animals found around structures and landscapes, including nesting behavior, seasonal activity, risks and common property conflicts.
Household Pest Identification Guides
Select a pest to learn about identification, habits, diet, life cycle, risks and the signs commonly found around homes.
Bed Bugs
Identification, hiding places, feeding habits, life cycle and infestation signs.
Boxelder & Asian Beetles
Seasonal invaders that gather on buildings and overwinter inside structures.
House Centipedes
Fast-moving indoor predators, moisture preferences, diet and common hiding areas.
Crickets
House, field and camel crickets, sounds, diet, habitat and indoor activity.
Millipedes
Moisture-loving decomposers, seasonal migrations and differences from centipedes.
Mosquitoes
Breeding water, life cycle, feeding behavior and conditions that support activity.
Cockroaches
Common cockroach species, harborages, food sources, risks and infestation signs.
Silverfish
Moisture, feeding habits, paper and fabric damage, life cycle and hiding places.
Spiders
Common Illinois spiders, web-building habits, diet, risks and identification.
Wasps & Bees
Yellow jackets, hornets, paper wasps, solitary wasps, bees and look-alikes.
Illinois Wildlife Identification Guides
Select an animal to learn about identification, habitat, seasonal behavior, nesting, risks and common conflicts around Illinois properties.
Groundhogs
Burrowing, diet, seasonal behavior and damage around landscapes and structures.
Foxes & Coyotes
Identification, denning, diet, seasonal behavior and suburban sightings.
Moles & Voles
Tunnels, feeding damage, habitat and the differences between these lawn pests.
Muskrats
Bank burrows, feeding behavior, habitat and activity around ponds and shorelines.
Opossums
Nocturnal habits, diet, denning behavior and common activity around homes.
Raccoons
Tracks, droppings, denning, attic activity and common property damage.
Skunks
Burrowing, diet, defensive behavior and seasonal activity near structures.
Snakes
Common Illinois snakes, habitat, diet, seasonal activity and safety considerations.
Squirrels
Tree squirrel habits, nesting, chewing behavior and signs of attic entry.
Not Sure What You Found?
Photos, sounds, droppings and the location of activity can all help with identification. Contact D&K to describe what you are seeing and schedule the appropriate inspection.