Wasps and Stinging Insects · MetroWest Massachusetts
Repeated flight activity may reveal where insects are entering or nesting.
A visible nest is not always present. Watching from a safe distance can help document flight paths, entry points, activity levels, and whether the insects appear connected to the structure or landscape.
Do not approach, strike, spray, seal, or disturb a suspected nest for the purpose of completing this guide. Keep people and pets away from concentrated activity. Anyone experiencing a severe allergic reaction after a sting should seek emergency medical assistance.
What are you noticing?
- Insects repeatedly entering the same opening
- Concentrated activity around eaves, soffits, siding, shutters, decks, or railings
- A visible paper-like nest
- Ground-level activity near a hole
- Activity inside a wall or ceiling area
- Insects gathering around food, trash, fruit, or sweet liquids
- Stinging insects appearing indoors without a clear open door or window
Common nesting and activity locations
- Roof edges and eaves
- Soffits
- Wall voids
- Shutters
- Decks and railings
- Sheds
- Play structures
- Shrubs and trees
- Ground openings
- Trash and recycling areas
What else could it be?
Bees, wasps, hornets, yellowjackets, flies, and other insects may be confused at a distance. Behavior, nest material, flight path, body shape, and nesting location can help a professional narrow the possibilities.
What to document
- Location
- Height from the ground
- Approximate insect size and color
- Visible nest or concealed entry
- Ground, structure, tree, or shrub location
- Time of strongest activity
- Number of insects observed from a safe distance
- Indoor activity
- Recent stings
- Photographs taken without approaching the nest
Free homeowner resource
Document the activity without disturbing the nest.
The Stinging Insect Nest Observation and Safety Guide helps you record flight patterns, possible entry points, and the location of suspected nesting activity from a safe distance.
- Observing from a safe distance
- Recording the location
- Recording the flight pattern
- Describing what you can see safely
- Property-use concerns
- When to keep the area clear
- What to prepare for an inspection
Delivered directly to your inbox. Requesting the guide does not request pest-control service.
Read the guide on this siteWhen may an inspection be appropriate?
Request an inspection when insects repeatedly enter a structural opening, activity is near doors or occupied areas, a nest is inaccessible, insects are appearing indoors, or anyone on the property may be at increased risk from stings.
Request a Professional InspectionNo obligation. Requests are stored and reviewed, and we explain the next step for your area.
Professional provider availability is currently being established for MetroWest.
Frequently asked questions
Educational information only. Online information cannot definitively identify every pest or confirm whether an infestation exists. Signs described here overlap between species and can also be caused by non-pest household conditions.