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High Risk

Paper Wasp

Polistes spp.

Paper wasps build distinctive open-celled nests from chewed plant fibres mixed with saliva. Common under eaves, roof ledges, and sheltered structures in Singapore, they are moderately aggressive and will sting repeatedly if their nest is disturbed.

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Paper Wasp - Polistes spp.

Risk Level

High

Active Period

Year-round in Singapore's tropical climate

Common Locations

Under eaves, Roof ledges

Size

15–25mm

Identification Guide

How to Identify Paper Wasp

Physical Appearance

Slender wasp with long legs that dangle during flight. Brown to reddish-brown body with yellow markings. Narrow waist between thorax and abdomen. Wings fold lengthwise at rest.

Size

15–25mm

Common Locations

Under eaves, Roof ledges, Window frames, Playground structures

Paper Wasp identification
Behaviour Patterns

Habitat & Behaviour

Activity & Breeding

Semi-social, living in small colonies of 20-100 individuals. Builds umbrella-shaped open nests with visible hexagonal cells. Feeds on caterpillars and other insects. Moderately aggressive — will defend nest with multiple stings.

Active Period

Year-round in Singapore's tropical climate

Warning Signs

Signs of Paper Wasp Infestation

Visible umbrella-shaped paper nests under sheltered areas
Wasps flying to and from a fixed location on your building
Increased wasp activity near outdoor dining or play areas
Chewed wood fibres on surfaces near nesting sites
Aggressive wasps when approaching eaves or ledges
Multiple small nests in close proximity
Why Act Now

Health & Property Risks

Painful stings that can cause localised swelling
Severe allergic reactions (anaphylaxis) in sensitive individuals
Multiple stings when nest is disturbed accidentally
Safety hazard for children playing near nesting sites
Liability risk for property owners and managers
Take Action

Prevention Tips

Regular inspection of eaves, ledges, and sheltered areas
Remove small nests early before colonies establish
Seal gaps and openings where wasps could nest
Keep outdoor dining areas clean of food residue
Use wasp-deterrent treatments on common nesting sites
Contact professionals for nests larger than a golf ball
Got Questions?

Frequently Asked Questions

Related Species

Other Wasp Species

Need Help With Paper Wasp?

Our experienced technicians can identify and eliminate paper wasp infestations. Contact us for a free inspection and tailored treatment plan.

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