Strumigenys rogeri Emery, 1890

Fig. 35A–C; Table 2

Strumigenys rogeri Emery, 1890: 68, pl. 7 fig. 6 (w.) ANTILLES. Neotropic.

Strumigenys incisa Godfrey, 1907: 102 (synonymized by Donisthorpe 1915: 341).

Strumigenys sulfurea Santschi, 1915: 261 (synonymized by Brown 1954b: 20).

Material examined

THAILAND – Trang Province • 5 workers; Khao Chong; 7.25423° N, 99.71394° E; 29 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL ANTWEB1011943 • 2 workers; Khao Chong; 7.25533° N, 99.71729° E; 29 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.25784° N, 99.7113° E; 29 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.2591° N, 99.70889° E; 29 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL .

VIETNAM – Đỗng Nai Province • 3 workers; Cat Tien National Park; 11.42753° N, 107.42713° E; 144 m a.s.l.; 6 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 23 workers, 1 queen; Cat Tien National Park; 11.39719° N, 107.48502° E; 142 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 8 workers; Cat Tien National Park; 11.39712° N, 107.48432° E; 271 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 104 workers, 2 queens; Cat Tien National Park; 11.3972° N, 107.48502° E; 143 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 32 workers; Cat Tien National Park; 11.39854° N, 107.48625° E; 140 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers; Cat Tien National Park; 11.37033° N, 107.51338° E; 172 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 40 workers, 2 queens; Cat Tien National Park; 11.37623° N, 107.50349° E; 175 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 9 workers, 1 queen; Cat Tien National Park; 11.37042° N, 107.50924° E; 175 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Cat Tien National Park; 11.36651° N, 107.49233° E; 169 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 5 workers; Cat Tien National Park; 11.36605° N, 107.49292° E; 170 m a.s.l.; 7 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL .

Geographic range

Native: central Africa

Introduced: Oriental realm (India: Kerala; Indonesia: Borneo, Java, Sumatra; Malaysia; Philippines; Singapore; Taiwan; Thailand: Trang; Vietnam), Sino-Japanese realm (mainland China: Hong Kong). For a full global account refer to antmaps.org (Janicki et al. 2016; Guénard et al. 2017).

New record for Thailand.

Ecology

Collected in mature forest and rubber plantations, at elevations from 140 to 271 m.

Comments

An Afrotropical tramp species with an extensive introduced range across Malagasy, Nearctic, Oceanian, Oriental, Panamanian and Sino-Japanese realms, as well as indoor introduction in the Australian and Palearctic realms. Given its records in nearby Vietnam and Peninsular Malaysia, this new record in southern Thailand was expected. Its presence in Laos and Cambodia is also likely.