What is the difference between wasps and hornets?

ByRandy Bilesky BsF CPA RPF

What is the difference between wasps and hornets?

The terms wasp and hornet often get used interchangeably, but there’s a key distinction between them:

🔹 1. Taxonomy

  • Wasps: A broad category that includes many species, including hornets and yellowjackets. They belong to the family Vespidae.
  • Hornets: A specific type of wasp. They are a subset of wasps in the genus Vespa.

👉 All hornets are wasps, but not all wasps are hornets.


🔹 2. Size and Appearance

  • Hornets: Generally larger than most wasps. They tend to have thicker bodies and more rounded abdomens.
  • Wasps: Vary widely in size and shape. Many are slimmer with a more defined “waist” (petiole).

🔹 3. Color

  • Hornets: Usually black and white or reddish-brown and yellow, depending on the species.
  • Common wasps (like yellowjackets): Usually bright yellow and black.

🔹 4. Behavior

  • Hornets: More aggressive when defending their nests, and their stings can be more painful due to higher venom volume.
  • Wasps: Can be aggressive (especially species like yellowjackets), but it varies by type.

🔹 5. Nesting Habits

  • Hornets: Build large, papery nests in trees, shrubs, or sometimes under eaves.
  • Wasps: Varies—some make papery nests (like paper wasps), others build underground (like yellowjackets).

🔹 6. Diet


Summary Table:

FeatureWaspsHornets
TaxonomyBroad groupSubgroup of wasps (Vespa)
SizeUsually smallerLarger
ColorYellow/black or variedBlack/white or reddish/yellow
AggressionVariesMore aggressive when threatened
NestsAbove-ground or undergroundUsually aerial, papery nests

https://gogreenpestcontrol.ca/what-is-the-diff…asps-and-hornets

About the author

Randy Bilesky BsF CPA RPF administrator

Pest Control Owner