Strumigenys nathistorisoc Tang 2019
Creators: name: Tang, Kit Lam
name: Guénard, Benoit
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Strumigenys
Strumigenys nathistorisoc

description: Strumigenys nathistorisoc Tang et al., 2019
Fig. 32G–I; Table 2
Strumigenys nathistorisoc Tang et al., 2019: 31, figs 12a–d (w.) CHINA (Hong Kong). Indomalaya.
Material examined
MAINLAND CHINA – Guangxi Province • 1 worker; Huaping, Hongtan; 17 Aug. 1998; J. Fellowes leg.; HKBM ANTWEB1011906 • 2 workers; Nonggang, Longhu; 23 May 1998; J. Fellowes leg.; HKBM ANTWEB1011904 to ANTWEB1011905 • 1 worker; Qingshitan, Jiuwu; 26 Aug. 1998; J. Fellowes leg.; HKBM ANTWEB1011901. – Hainan Province • 1 worker; Bawangling, BWLP12; 19.09324° N, 109.20006° E; 4 Jul. 2016; L. Wang leg.; Winkler, 12 random; IBBL • 3 workers; Bawangling, BWLS5; 19.10036° N, 109.17835° E; 7 Jul. 2016; L. Wang leg.; Winkler, 12 random; IBBL.
Measurements
Workers
TL 3.1–3.4, HL 0.72–0.82, HW 0.58–0.63, MandL 0.23–0.26, SL 0.33–0.41, EL 0.061 –0.084, PW 0.25– 0.30, ML 0.80–0.87, PL 0.33–0.38, PH 0.13–0.17, DPW 0.13–0.16, PPL 0.19–0.24, GL 0.79–0.91, CI 76–80, MI 31–34, SI 56–65, OI 10–14, LPI 40–44, DPI 37–41 (n=5).
Worker redescription
PILOSITY. In full-face view, cephalic dorsum with appressed spatulate setae, slightly inclined towards midline; clypeal dorsum covered with small oblanceolate setae; mandibular dorsum covered with spatulate to obovate setae, masticatory margins each with row of similar, medially-directed setae. Head without any laterally-projecting seta; decumbent setae present along dorsolateral margin of head and leading edge of scape. Surface of scape covered with appressed spatulate to subspatulate setae; funiculus (except for apical antennomere) covered with appressed plank-like setae; progressively finer setae covering apical antennomere. In dorsal view, promesonotal dorsum sparsely with appressed subspatulate setae, directed toward midline; posteriorly-directed decumbent setae present along lateral margins; posteriorly-directed appressed setae present along lateral margins of petiolar node and disc of postpetiole. Pronotal humeral seta absent. In profile view, cephalic dorsum without any erect seta; suberect to decumbent stout setae present on propodeal dorsum, petiolar node and disc of postpetiole; gastral tergites sparsely with very short, apically-acute, suberect to decumbent setae; second and third gastral tergites with around two pairs of erect stout setae; ventral surface of head with appressed setae; gastral sternites sparsely with suberect to decumbent setae. Hairwheel present at mesopleural excavation. Surfaces of femora, tibiae and basitarsi with long decumbent to appressed setae.
Geographic range
Mainland China (Guangxi, Hainan, Hong Kong).
New record for Guangxi and Hainan.
Ecology
Collected in primary and secondary forest.
Comments
These are the first two records of a recently-described species outside Hong Kong, which indicates, as suggested in Tang et al. (2019), that the species is not endemic to Hong Kong but is likely more widespread within south China, with future records expected from the Guangdong Province.
The pilosity description of the species is revised using newly-defined terminologies. We have determined that S. nathistorisoc belongs to its own species group due to its unique dentition. See S. nathistorisoc - group’s diagnosis for a detailed discussion.
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 98-99, DOI: 10.5852/ejt.2023.907.2327, http://zenodo.org/record/10148811