Crematogaster (Orthocrema) quadriruga Forel, 1911

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 : 80

publication ID	https://doi.org/10.20362/am.015006
DOI	https://doi.org/10.5281/zenodo.15474283
persistent identifier	https://treatment.plazi.org/id/03B68783-311A-FFEA-FF0F-7E23FB6FFCD7
treatment provided by	Felipe
scientific name	Crematogaster (Orthocrema) quadriruga Forel, 1911
status

Treatment

Crematogaster (Orthocrema) quadriruga Forel, 1911 View in CoL

Material examined. National University of Singapore campus (Clementi/Kent Ridge), Apr-Sep 2015, M.S. Foo & W. Wang leg., malaise trap, ZRC _BDP (multiple); Pulau Semakau Old Fragment, SMO2, 1°12’20.2”N, 103°45’35.8”E, 5-12 Jul 2012, J. Puniamoorthy et al. leg., mangroves, malaise trap, Reg. 29343, ZRC _ BDP0015230 View Materials ; Pulau Ubin, 7 Jan 2014, Sk. Yamane leg., ZRC _HYM_0000387- 388; Sungei Buloh Wetland Reserve, 14 Mar 2018, W. Wang leg., WW-SG18-Crem1, ZRC _ ENT00000905 View Materials ; Ulu Sembawang Road, 17 May 1994, collector unknown, NS 135, ZRC _ ENT00000269 View Materials ; Temasek Polytechnic, adjacent waste woodland, 1.34239, 103.93598, 15 Dec 2016, G.W. Yong leg., TT1TH548, ZRC _HYM_0001763 GoogleMaps .

Material not physically examined. Unknown.

Literature. Wang et al. (2018a).

Localities. National University of Singapore campus (Clementi/Kent Ridge); Pulau Semakau Old Fragment; Pulau Ubin; Sungei Buloh Wetland Reserve; Ulu Sembawang Road; (beside) Temasek Polytechnic.

Habitat/Ecology. This species was often found in disturbed mature or young secondary forest fragments in urban or semi-urban settings, including waste woodlands, where the ants were found foraging on tree trunks. Crematogaster quadriruga has also been found in mangroves, where individuals have been collected from trails on elevated branches of living trees.

Remarks. This small, yellowish species is similar in appearance to C. bandarensis , but can be distinguished from the latter by its small propodeal spiracle that is located relatively apart from the metapleural gland bulla - in C. bandarensis the propodeal spiracle is large and touching the metapleural gland bulla.