Strumigenys juliae Forel 1905
Creators: name: Tang, Kit Lam
name: Guénard, Benoit
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Strumigenys
Strumigenys juliae

description: Strumigenys juliae Forel, 1905
Fig. 23G–I; Table 2
Strumigenys juliae Forel, 1905: 12 (w.) INDONESIA (Java). Indomalaya.
Material examined
THAILAND – Trang Province • 4 workers; Khao Chong; 7.54401° N, 99.80087° E; 25 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers, 1 queen; same collection data as for preceding; IBBL • 1 worker; same collection data as for preceding; IBBL • 1 worker; same collection data as for preceding; IBBL • 1 worker; Khao Chong; 7.54309° N, 99.80029° E; 25 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 2 workers, 1 queen; Khao Chong; 7.54251° N, 99.79813° E; 25 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 8 workers, 1 queen; Khao Chong; 7.54246° N, 99.79651° E; 25 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; same collection data as for preceding; IBBL • 1 worker; Khao Chong; 7.54204° N, 99.79298° E; 26 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 10 workers, 1 queen; Khao Chong; 7.54525° N, 99.79203° E; 26 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 16 workers, 2 queens; same collection data as for preceding; IBBL • 11 workers; Khao Chong; 7.54765° N, 99.78864° E; 26 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 6 workers; Khao Chong; 7.5436° N, 99.8067° 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 • 14 workers, 1 queen; Khao Chong; 7.26917° N, 99.66152° E; 28 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.25423° N, 99.71394° E; 29 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 6 workers; Khao Chong; 7.25533° N, 99.71729° E; 29 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 3 workers; Khao Chong; 7.54381° N, 99.79488° E; 30 Dec. 2018; IBBL members leg.; Winkler, 4 corners; IBBL • 27 workers, 1 queen; Khao Chong; 7.55521° N, 99.79266° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL • 1 worker; Khao Chong; 7.55519° N, 99.79115° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL • 9 workers, 1 queen; same collection data as for preceding; IBBL • 9 workers, 1 queen; Khao Chong; 7.55602° N, 99.78968° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL • 7 workers; Khao Chong; 7.55471° N, 99.78834° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL • 4 workers, 3 queens; Khao Chong; 7.55487° N, 99.7865° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL • 3 workers, 2 queens; Khao Chong; 7.55606° N, 99.78436° E; 1 Jan. 2019; IBBL members leg.; Winkler, 4 corners; IBBL.
VIETNAM – Đắk Nông Province • 4 workers; Nam Nung Reserve; 12.2045° N, 107.75543° E; 883 m a.s.l.; 9 Jun. 2018; IBBL members leg.; Winkler; IBBL • 1 worker; Nam Nung Reserve; 12.18455° N, 107.76223° E; 878 m a.s.l.; 9 Jun. 2018; IBBL members leg.; Winkler; IBBL • 25 workers, 4 queens; Nam Nung Reserve; 12.1757° N, 107.76062° E; 907 m a.s.l.; 10 Jun. 2018; IBBL members leg.; Winkler; IBBL • 1 worker; 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 • 11 worker, 1 queen; Nam Nung Reserve; 12.23025° N, 107.83087° E; 886 m a.s.l.; 12 Jun. 2018; IBBL members leg.; Winkler; IBBL • 4 workers; Nam Nung Reserve; 12.23077° N, 107.83045° E; 911 m a.s.l.; 12 Jun. 2018; IBBL members leg.; Winkler; IBBL • 1 worker; Nam Nung Reserve; 12.23077° N, 107.83063° E; 909 m a.s.l.; 12 Jun. 2018; IBBL members leg.; Winkler; IBBL • 3 workers, 1 queen; Nam Nung Reserve; 12.23104° N, 107.83173° E; 891 m a.s.l.; 12 Jun. 2018; IBBL members leg.; Winkler; IBBL • 2 workers; Nam Nung Reserve; 12.23113° N, 107.83153° E; 907 m a.s.l.; 12 Jun. 2018; IBBL members leg.; Winkler; IBBL • 17 workers; same collection data as for preceding; IBBL • 1 worker; Nam Nung Reserve; 12.23036° N, 107.83293° E; 826 m a.s.l.; 12 Jun. 2018; IBBL members leg.; Winkler; IBBL • 1 worker, 2 queens; Nam Nung Reserve; 12.22927° N, 107.83662° E; 805 m a.s.l.; 12 Jun. 2018; IBBL members leg.; Winkler; IBBL.
Measurements
Workers
TL 1.9–2.4, HL 0.50–0.60, HW 0.35–0.44, MandL 0.22–0.28, SL 0.28–0.36, EL 0.043 –0.066, PW 0.20– 0.27, ML 0.47–0.63, PL 0.22–0.29, PH 0.10–0.12, DPW 0.09–0.13, PPL 0.12–0.17, GL 0.38–0.53, CI 68–75, MI 42–46, SI 74–86, OI 11–16, LPI 41–50, DPI 39–56 (n= 14).
Geographic range
Borneo, Indonesia (Java and Lesser Sunda Islands), Malaysia (Peninsular), Philippines, Singapore, Thailand (Trang), Vietnam (Đắk Nông).
New record for Thailand and Vietnam.
Ecology
Collected in primary forest, secondary forest, mature forest and rubber plantation.
Comments
The new records in Thailand and Vietnam extend the species’ geographical range more than 1000 km northward into the Indochinese Peninsula, and indicate that it may also be present in the nearby country of Cambodia.
description: Published as part of 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, pp. 1-144 in European Journal of Taxonomy 907 on pages 78-79, DOI: 10.5852/ejt.2023.907.2327, http://zenodo.org/record/10148811