Fall in the Tri-State area (Ohio, Kentucky, and Indiana) is full of familiar sights — colorful leaves, cooler temperatures, and yes… bugs. As temperatures drop in October, pests start creeping indoors, and some of the most common visitors can be alarming if you’re not sure what you’re looking at.

At Romans Pest Management, we get plenty of calls this time of year from concerned homeowners who’ve spotted something crawling across the wall or gathering near windows. But not every bug you see in October is dangerous — and not every one is as innocent as it looks.

Here’s how to tell the difference between a harmless fall visitor and one that may require professional pest control.

Wolf Spiders vs. Brown Recluses

Both of these spiders show up more frequently in the fall — but only one is truly dangerous.

Wolf Spiders

  • Large, fast, and hairy
  • Often seen alone on floors or near doors
  • Not venomous to humans
  • Can look scary, but they’re mostly harmless and actually help control other bugs

Brown Recluse Spiders

  • Smaller, pale brown with a violin-shaped mark on the back
  • Prefer dark, undisturbed spaces (closets, basements, storage)
  • Venomous; bites can require medical attention
  • Much less common but still present in parts of the Tri-State

Not sure what you saw? Don’t take chances — call us to inspect and identify the spider.

Ladybugs vs. Asian Lady Beetles

Seeing spots? These two look nearly identical — but only one is likely to become a pest.

Ladybugs

  • Bright red with black spots
  • Beneficial insects that live outdoors and help gardens
  • Rarely enter homes in large numbers

Asian Lady Beetles

  • Can be orange, red, or yellow with spots or no spots
  • Often invade homes in the fall to overwinter
  • Emit a foul-smelling liquid when threatened
  • Can stain walls and trigger allergies

Pro tip: Asian lady beetles cluster in large groups near sunny windows and walls — ladybugs don’t.

Pantry Moths vs. Outdoor Moths

Found a fluttering moth in your kitchen? It might be more than a nuisance.

Pantry Moths (Indian Meal Moths)

  • Small, tan or gray with reddish wings
  • Lay eggs in dry food like rice, flour, cereal, and pet food
  • Can infest entire pantries before you notice

Outdoor Moths

  • Usually larger, often seen near porch lights
  • Unlikely to infest food
  • May enter homes by accident but won’t stay

If you spot pantry moths or larvae in food packaging, throw it out and call a pest pro.

Harmless Ants vs. Structural Invaders

Not all ants are the same — and October can bring both indoors.

Pavement or Odorous House Ants are tiny and annoying but mostly harmless.
Carpenter Ants are larger and can cause structural damage by hollowing out wood to nest.

If you’re seeing large black ants in your home — especially in the kitchen or near walls — it’s worth getting a professional inspection.

When in Doubt, Call the Experts

Trying to identify pests based on size, color, or behavior can be confusing. Some species look harmless but carry real risks, while others just need to be relocated or sealed out.

At Romans Pest Management, we help homeowners throughout Ohio, Kentucky, and Indiana identify pests correctly and respond appropriately. Whether you’re facing a full-blown infestation or a few suspicious sightings, we’re here to help.

Call Romans Pest Management today for an inspection or treatment plan you can trust.