Asian hornet - Wikipedia
2019-6-23 · Appearance. Vespa velutina is slightly smaller than the European hornet.Typically queens are 30 mm in length, and males about 24 mm. Workers measure about 20 mm in length. The species has distinctive yellow tarsi (legs). The thorax is a velvety brown or black with a brown abdomen. Each abdominal segment has a narrow posterior yellow border, except for the fourth segment, which is orange.