Spiders are arachnids, not insects. The difference is easy to miss because both may be small, move quickly, and show up near the same outdoor lights, plants, screens, and entry points. Once you know what to look for, the distinction is straightforward.
Spiders have eight legs. Insects have six.
The clearest difference is the number of legs. Adult spiders have eight legs. Insects have six. A spider also has two main body sections, while an insect has three: a head, thorax, and abdomen.
Spiders do not have antennae or wings. Many insects do. Their feeding tools differ as well. Spiders use fang-like mouthparts called chelicerae, while insects have a range of mouthparts suited to chewing, piercing, or sipping.
Why the distinction matters around a home
Knowing whether you are seeing a spider or an insect helps narrow down the conditions that may be drawing activity close to the house. Insects often gather around food, moisture, lights, or plant material. Spiders may follow because those insects provide a food source, then settle where web sites offer shelter and less disturbance.
That means a spider concern often has more than one piece. A web under an outdoor light, around a pool cage, or near a covered entry can be a sign that the space is attractive to insects and provides a protected place for spiders to stay.
When a spider sighting is normal
One spider outdoors does not automatically mean there is a pest problem. Florida homes sit close to landscaping, screened areas, porches, and light fixtures, so occasional activity is expected. The pattern matters more than a single sighting.
- Repeated webs in the same doorway, patio, or pool-cage corner.
- Spiders appearing indoors more often than usual.
- Heavy insect activity around exterior lights or screens.
- Webs returning quickly after removal.
When the same areas keep drawing activity, a closer inspection can identify the conditions that are helping it continue. Peyton’s prevention-first inspection process looks at the exterior edge as well as the places where activity is most noticeable.
A practical first step
Keep exterior lights, screens, door seals, and vegetation near the home in the picture. Removing a web may improve the immediate appearance, but repeat webs usually call for a closer look at light, shelter, and nearby insect activity. For help identifying common household pests, visit the Florida Pest Library.
For repeat activity around your home, request an inspection to get a clear next step.