Strumigenys formosimonticola

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Strumigenys formosimonticola
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species: S. formosimonticola
Binomial name
Strumigenys formosimonticola
(Terayama, Lin & Wu, 1996)

Pyramica formosimonticola side (

Pyramica formosimonticola top (

Specimen labels


A member of the Strumigenys leptothrix-group.

Keys including this Species


Distribution based on Regional Taxon Lists

Oriental Region: Taiwan (type locality).

Check distribution from AntMaps.

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Check specimen data from AntWeb




The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • formosimonticola. Smithistruma formosimonticola Terayama, Lin & Wu, 1996: 331, figs. 12-14, 16, 18, 21 (w.q.) TAIWAN. Combination in Pyramica: Bolton, 1999: 1673; in Strumigenys: Baroni Urbani & De Andrade, 2007: 120. See also: Bolton, 2000: 433.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.


Bolton (2000) - TL 2.0-3.0, HL 0.74-0.79, HW 0.48-0.55, CI 65-73, ML 0.12-0.13, MI 15-18, SL 0.35-0.46, SI 73, PW 0.30-0.37, AL 0.80-0.92 (measurements after Terayama, Lin, & Wu, 1996). Among the leptothrix-group members of this region formosimonticola has the following combination of characters.

1 Leading edge of scape without freely projecting hairs; all hairs on the leading edge small, decumbent to appressed and directed toward the apex of the scape.

2 With head in profile simple suberect to erect hairs are present on the dorsum between the highest point of the vertex and the occipital margin; such hairs are absent from clypeus to highest point of vertex.

3 With head in full-face view upper scrobe margin to level of eye without freely laterally projecting hairs; lateral margin of occipital lobe, behind level of eye, with about 4 freely laterally projecting straight simple hairs.

4 Dorsal surface of pronotum, as well as mesonotum, with erect long simple hairs present.

5 Dorsal (outer) surfaces of hind tibiae without freely projecting simple hairs; all hairs present are short, decumbent and directed apically.

6 Propodeal lobes (= metapleural lobes) low and rounded, lamellate, not produced into long acute triangular teeth or spines.

7 With petiole in profile the lateral spongiform lobe extends forwards almost to the level of the anterior face of the node.

Type Material

Bolton (2000) - Holotype worker and paratype workers and queens, TAIWAN: Taitung Hsien, Yenping, 29.vii.1992 (C. -C. Lin); paratype workers, same locality but 29-30.vii.1992 (C. –C. Lin) (National Institute of Agro-Environmental Sciences, National Taiwan University, Taiwan Agricultural Research Institute) [examined].


  • Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria” 99: 1-191.
  • Bolton, B. 1999. Ant genera of the tribe Dacetonini (Hymenoptera: Formicidae). J. Nat. Hist. 3 33: 1639-1689 (page 1673, combination in Pyramica)
  • Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 433, redescription of worker)
  • Ogata, K.; Onoyama, K. 1998. A revision of the ant genus Smithistruma Brown of Japan, with descriptions of four new species (Hymenoptera: Formicidae). Entomol. Sci. 1(2): 277-287 (page 279, see also)
  • Terayama, M.; Lin, C.-C.; Wu, W.-J. 1996. The Taiwanese species of the ant genus Smithistruma (Hymenoptera, Formicidae). Jpn. J. Entomol. 64: 327-339 (page 331, figs. 12-14, 16, 18, 21 worker, queen described)