Diacamma geometricum ( Smith, 1857 )

Hamer, Matthew T., Lee, Jonathan Hon Chung, Tse, Cheung Yau Leo, Silva, Thiago S. R. & Guénard, Benoit, 2022, Remarkable diversity in a little red dot: a comprehensive checklist of known ant species in Singapore (Hymenoptera: Formicidae) with notes on ecology and taxonomy, Asian Myrmecology (e 015006) 15, pp. 1-152 : 118

publication ID	https://doi.org/10.20362/am.015006
DOI	https://doi.org/10.5281/zenodo.15474534
persistent identifier	https://treatment.plazi.org/id/03B68783-3120-FFD0-FF0F-7AE3FEE8FA17
treatment provided by	Felipe
scientific name	Diacamma geometricum ( Smith, 1857 )
status

Treatment

Diacamma geometricum ( Smith, 1857) View in CoL

Material examined. Mandai Lake Road, buffer area ( Northern Node ), 1°24’36.5”N, 103°47’04.0”, 53 m, 18 Jul 2019, J.S. Tan & N.L. Chin leg., ZRC _ ENT00047849 View Materials ; Mandai Road , plot 1, 1.41263, 103.79237, 21 Nov 2016, G.W. Yong et al. leg., M1D17GH2031, ZRC _ ENT00047840 View Materials GoogleMaps ; Sime Road forest , 2 Jan 1978, D.H. Murphy leg., ZRC _ HYM_0000812; locality unknown, 14 Apr 1993, Sk. Yamane leg., ZRC _ HYM_0000421- 422; MacRitchie Reservoir , 6 Jan 2014, Sk. Yamane leg. ( SKYC) .

Material not physically examined. Holotype - CASENT0901342, ANTC20781 ( OUMNH) [as Ponera geometrica ]. Non-types - CASENT0916122-916123, ANTC43588- ANTC43589 ( CASC); Harbourfront, Marang Trail, 4 Aug 2014, J.K. Wetterer leg., vial #473 ( JKWC); Punggol Point, 30 Jul 2014, J.K. Wetterer leg., vial #399 ( JKWC). In Laciny et al. (2015) – McRitchie (sic) Reservoir, reserve area, 23 Oct 2003, H. Zettel leg. ( ZCW).

Literature. Type – Smith (1857) [as Ponera geometrica ]. Viehmeyer (1916), Overbeck (1924) [both as D. tritschleri ]; Laciny et al. (2015); Zettel et al. (2016).

Localities. Bukit Timah Hill; Harbourfront; MacRitchie Reservoir; Mandai Lake Road; Mandai Road; Punggol Point; Seletar Reservoir; Sime Road forest; Thompson Road.

Habitat/Ecology. This species is associated mostly with old/mature secondary forests in Singapore, also sometimes in young secondary forest. Individuals have been collected from leaf litter and upper soil substrate.

Remarks. Type locality in Singapore. Diacamma geometricum was initially considered a synonym of D. rugosum (see Wilson 1958), but was revived/restored to species by Laciny et al. (2015).