Wasp, Bee or Carpenter Bee? A Hong Kong Identification Guide

Safety source

FEHD: prevention of wasp sting

Wasps and hornets: slim, smooth, narrow-waisted

• Look: slender, smooth body with little to no hair, and a distinctly narrow "wasp waist"; usually banded yellow-black or brown-black.
• Behaviour: noticeably defensive near the nest, especially with vibration or when the entrance is blocked; less aggressive while foraging away from the nest.
• Sting: the stinger lacks the honey bee's anchoring barb, so a wasp can sting multiple times without leaving anything behind.
• Where they turn up: under eaves, on top of air-conditioning units, in trees, ceiling voids, under canopies.

Honey bees: a hairier body and hive activity

• Look: shorter, stockier body with visible fuzz, usually golden-brown, without a wasp's exaggerated narrow waist.
• Behaviour: generally docile while foraging among flowers away from the hive, and rarely sting unless directly threatened or the hive is disturbed.
• Sting: a honey bee may leave a stinger in human skin. Do not approach, catch or handle an insect to confirm its type.
• Where they turn up: tree hollows, gaps in walls, nests under canopies with visible wax honeycomb.

Carpenter bees: larger bodies and holes in timber

• Look: noticeably larger than typical bees, mostly solid glossy black-blue with a metallic sheen (some show pale yellowish hair on the thorax).
• Observation: repeated entry into holes in timber can be a useful clue. Loud flight or a large body does not establish the risk of a sting.
• Safety: do not try to determine sex at close range or handle the insect. Keep your distance when identification is uncertain.
• Where they turn up: unpainted wooden canopies, railings, furniture — they bore round holes into timber to nest.

Nest shape as another clue

• Open paper comb, hexagonal cells visible with no outer shell → usually an early-stage wasp or hornet nest.
• Grey papery "ball", oval-shaped with a wavy-textured surface and an opening at the bottom → common for wasp/hornet colonies, growing larger through the season.
• Waxy honeycomb, with bees repeatedly entering and exiting the same gap or wall cavity → typically a honey bee colony; the comb itself looks yellow-brown and glossy.
• Individual round holes drilled into bare wood, with no overall "nest" shape → carpenter bees boring in, usually one bee per hole.

What's actually dangerous, and what isn't

Risk isn't about which insect looks scarier — it's about your distance from a nest and how agitated the colony is:

• Avoid nest entrances, repeated insect traffic and work that could disturb a nest, such as renovation or tree trimming. The month is not a safe basis for deciding whether to approach.
• One foraging insect does not confirm a nearby nest, but it does not mean there is no sting risk. Keep back rather than swatting or handling it.
• If you find a nest, don't poke it with a pole, spray insecticide at it through a window, or use fire — any of these can trigger the whole colony to defend at once.

Once you've worked out what kind of insect it is and confirmed there's a nest, the next question is who's responsible for removing it — that's covered in detail in our wasp nest removal guide, including when FEHD handles it and when you need to arrange removal yourself.

What to do if you spot one

• Keep your distance and back away slowly — don't swat or wave your arms, since sudden movement and vibration are what typically trigger a defensive response.
• If you find a nest, take a photo from a safe distance rather than approaching it for a closer shot.
• Not sure what you're looking at, or whether there's a nest nearby? WhatsApp us a photo and we'll take a free look.
• If you feel unwell after a sting or develop a severe reaction, seek medical attention promptly. Do not assume that a single sting is harmless.