Strumigenys sydorata Bolton, 2000

Tang, Kit Lam & Guénard, Benoit, 2023, Further additions to the knowledge of Strumigenys (Formicidae: Myrmicinae) within South East Asia, with the descriptions of 20 new species, European Journal of Taxonomy 907, pp. 1-144 : 117-119

Strumigenys sydorata Bolton, 2000

Fig. 39A–C ; Table 2

Strumigenys sydorata Bolton 2000: 876 (w. q.) JAVA. Indomalaya.

Material examined

MAINLAND CHINA – Hainan Province • 1 worker; Lumuwan; 250 m a.s.l.; 17 Jun. 1999; J. Fellowes leg.; HKBM ANTWEB1011912 • 7 workers; Bawangling, BWLP10; 19.094° N, 109.20246° E; 4 Jul. 2016; L. Wang leg.; Winkler, 4 corners; IBBL • 2 workers; Bawangling, BWLP11; 19.09188° N, 109.20321° E; 4 Jul. 2016; L. Wang leg.; Winkler, 4 corners; IBBL • 2 workers; Bawangling, BWLP3; 19.08824° N, 109.19681° E; 30 Jun. 2016; L. Wang leg.; Winkler, 12 random; IBBL • 2 workers; Bawangling, BWLP4; 19.09217° N, 109.2017° E; 1 Jul. 2016; L. Wang leg.; Winkler, 12 random; IBBL • 6 workers; same collection data as for preceding; Winkler, 4 corners; IBBL • 1 worker; Bawangling, BWLP7; 19.09134° N, 109.19848° E; 3 Jul. 2016; L. Wang leg.; Winkler, 4 corners; IBBL • 5 workers; Bawangling, BWLP9; 19.0903° N, 109.20101° E; 3 Jul. 2016; L. Wang leg.; Winkler, 12 random; IBBL • 7 workers; Bawangling, BWLS3; 19.09437° N, 109.17985° E; 6 Jul. 2016; L. Wang leg.; Winkler, 4 corners; IBBL • 1 worker; same collection data as for preceding; Winkler, 12 random; IBBL • 18 workers; Bawangling, BWLS4; 19.09674° N, 109.17778° E; 30 Jun. 2016; L. Wang leg.; Winkler, 4 corners; IBBL • 8 workers; Bawangling, BWLS7; 19.10643° N, 109.17604° E; 7 Jul. 2016; L. Wang leg.; Winkler, 4 corners; IBBL • 1 worker; same collection data as for preceding; Winkler, 12 random; IBBL • 3 workers; Bawangling, BWLS8; 19.08559° N, 109.19128° E; 9 Jul. 2016; L. Wang leg.; Winkler, 4 corners; IBBL • 4 workers; Bawangling, BWLS9; 19.08973° N, 109.19127° E; 9 Jul. 2016; L. Wang leg.; Winkler, 4 corners; IBBL .

THAILAND – Chanthaburi Province • 1 worker; Khao Soi Dao; 3 Jun. 2001; K. Eguchi leg.; KUM Eg 01-TH-014 . – Trang Province • 1 worker; Khao Chong ; 7.54309° N, 99.80029° E; 25 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers; Khao Chong; 7.54251° N, 99.79813° E; 25 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 14 workers, 1 queen; Khao Chong; 7.54246° N, 99.79651° E; 25 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers; Khao Chong; 7.54525° N, 99.79203° E; 26 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.54676° N, 99.79009° E; 26 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.54765° N, 99.78864° E; 26 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.54227° N, 99.81011° E; 27 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.54395° N, 99.80502° E; 27 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.54496° N, 99.80184° E; 27 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 14 workers; Khao Chong; 7.27201° N, 99.65614° E; 28 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 11 worker, 1 queen; Khao Chong; 7.25423° N, 99.71394° E; 29 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; same collection data as for preceding; IBBL • 1 worker; Khao Chong; 7.25675° N, 99.70862° E; 29 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 3 workers; Khao Chong; 7.54692° N, 99.79557° E; 30 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers; Khao Chong; 7.54381° N, 99.79488° E; 30 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers; Khao Chong; 7.54197° N, 99.79446° E; 30 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 5 workers, 2 queens; Khao Chong; 7.55602° N, 99.78968° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL • 23 workers; Khao Chong; 7.55487° N, 99.7865° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.55606° N, 99.78436° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL .

VIETNAM – Đắk Nông Province • 1 queen; Nam Nung Reserve ; 12.17563° N, 107.779° E; 894 m a.s.l.; 10 Jun. 2018; IBBL members leg.; Winkler; IBBL • 2 workers; Nam Nung Reserve ; 12.17645° N, 107.77879° E; 896 m a.s.l.; 10 Jun. 2018; IBBL members leg.; Winkler; IBBL • 1 worker; Nam Nung Reserve ; 12.17097° N, 107.7708° E; 912 m a.s.l.; 10 Jun. 2018; IBBL members leg.; Winkler; IBBL • 1 worker; Nam Nung Reserve ; 12.1757° N, 107.76062° E; 907 m a.s.l.; 10 Jun. 2018; IBBL members leg.; Winkler; IBBL • 8 workers, 3 queens; same collection data as for preceding; IBBL • 6 workers, 2 queens; Nam Nung Reserve ; 12.1666° N, 107.76752° E; 893 m a.s.l.; 10 Jun. 2018; IBBL members leg.; Winkler; IBBL • 1 worker; Nam Nung Reserve ; 12.16745° N, 107.76682° E; 890 m a.s.l.; 10 Jun. 2018; IBBL members leg.; Winkler; IBBL. – Đỗng Nai Province • 1 queen; Cat Tien National Park ; 11.43021° N, 107.42669° E; 146 m a.s.l.; 3 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker, 1 queen; Cat Tien National Park ; 11.43728° N, 107.42385° E; 141 m a.s.l.; 3 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers; Cat Tien National Park ; 11.43273° N, 107.42529° E; 141 m a.s.l.; 3 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; same collection data as for preceding; IBBL • 2 workers; Cat Tien National Park ; 11.4327° N, 107.42593° E; 137 m a.s.l.; 3 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Cat Tien National Park ; 11.44912° N, 107.35963° E; 140 m a.s.l.; 4 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers, 1 queen; Cat Tien National Park ; 11.45098° N, 107.36353° E; 160 m a.s.l.; 4 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 3 workers; Cat Tien National Park ; 11.45298° N, 107.36467° E; 174 m a.s.l.; 4 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers; Cat Tien National Park ; 11.45385° N, 107.367° E; 184 m a.s.l.; 4 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Cat Tien National Park ; 11.4587° N, 107.37202° E; 170 m a.s.l.; 4 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Cat Tien National Park ; 11.45688° N, 107.36958° E; 175 m a.s.l.; 4 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; same collection data as for preceding; IBBL • 3 workers, 1 queen; Cat Tien National Park ; 11.45683° N, 107.36852° E; 175 m a.s.l.; 4 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Cat Tien National Park ; 11.48512° N, 107.38658° E; 168 m a.s.l.; 5 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 queen; Cat Tien National Park ; 11.48379° N, 107.38651° E; 171 m a.s.l.; 5 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Cat Tien National Park ; 11.48525° N, 107.38425° E; 157 m a.s.l.; 5 Jun. 2018; IBBL members leg.; Winkler, 4 corners; IBBL .

Geographic range

Mainland China (Hainan, Hong Kong, Yunnan), Indonesia (Java, Sumatra), Singapore, Thailand, Vietnam.

New record for Hainan.

Ecology

A common species which has been collected in primary and secondary forest in Hainan. It has been collected in similar habits, as well as mature forest and rubber plantations in Thailand and Vietnam.

Comments

This species has been recorded from Yunnan, Thailand, Vietnam and Hong Kong, another species with geographical disjunction between Hong Kong and its remaining native range. Future records from Guangdong and Guangxi provinces of mainland China, as well as Cambodia and Laos appear likely.

Figures

Fig. 39. New species records of Strumigenys Smith, 1860 in full-face, profile and dorsal views. A–C. Worker of S. sydorata Bolton, 2000 from Hainan, mainland China (HNA-00781). D–F. Worker of S. takasago (Terayama et al., 1995) from Guangxi, mainland China (ANTWEB1011895). G–I. Worker of S. takasago from Taiwan (ANTWEB1010910(1)).