Vespa ducalis Smith Figs. 7c, 7d, 8d, 13b, 27, and 28 Vespa ducalis Smith, 1852: 39. Syntypes female, male; China: ‘ Teintung, near Nigo-po-foo’ (LONDON-NHM). Vespa ducalis var. pulchra du Buysson, 1905 (1904): 519. Lectotype female (designated by van der Vecht, 1959: 224); Japan: Yokohama (PARIS). Vespa matsumurai Sonan, 1935: 370. Holotype female; Japan: Tokyo (TAICHUNG). Vespa esakii Sonan, 1935: 371. Holotype female; Japan: Tsushima Is., ‘Izuhara’ (FUKUOKA). Vespa tropica loochooensis Bequaert, 1936: 343. Holotype female; Japan: Iriomote Is., Ryukyu Archipelago (CAMBRIDGE). Vespa tropica pseudosoror van der Vecht, 1959: 224. Holotype female; Vietnam: Annam, Tourane, 1,000 m (PARIS). Distribution. India, Sikkim, Nepal, Myanmar, Thailand; Laos, Vietnam, China, Hong Kong, Hainan; Taiwan; Russia: Korea; Japan, including Ryukyu Is. Discussion. This species of Vespa is quite different from the others. It preys on nests of other paper wasps, feeding the paper wasp pupae and larvae to their larvae. Their colonies are small with an average of 50 individuals, and nests are built underground, in tree hollows, and even in attics (Archer 1991).

Published as part of Smith-Pardo, Allan H., Carpenter, James M. & Kimsey, Lynn, 2020, The Diversity of Hornets in the Genus Vespa (Hymenoptera: Vespidae; Vespinae), Their Importance and Interceptions in the United States, pp. 1-27 in Insect Systematics and Diversity 4 (3) on pages 13-14, DOI: 10.1093/isd/ixaa006, http://zenodo.org/record/3826921