Hornet or also known as tiger-wasp is a large wasp of the Family Vespidae. Order Hymenoptera that none fertile females or workers can sting. Wasps in general are also other narrower-waisted insects of the same family that can sting as well. We have two common names in Thai called Tor (pronounced like T+or) for the hornet and Taen for slimmer wasp. Tor is mostly large sized with the fat body and usually body length longer than 15 mm while Taen is relatively shorter and slimmer body. The most common House Tiger Wasps, Vespa affinis build their nests in a round-shaped with clay. sometimes near iour housing even in Bangkok. Taen nests usually have various shaped such as flatten, lining, or lid shaped.