Species	Forewing (afw), mm					Hind wing (ahw), mm
	Mean	Std. dev.	Min. a	Max. b	Range of mean ± 1	Mean	Std. dev.	Min. a	Max. b	Range of mean ± 1
R. flavipes	6.810	0.331	5.97	7.74	6.48–7.14	6.550	0.332	5.70	7.44	1.29–1.35
R. virginicus	5.532	0.193	5.15	6.05	5.34–5.73	5.418	0.193	4.78	5.78	1.32–1.37
R. hageni	5.965	0.263	5.47	6.52	5.70–6.23	5.739	0.257	5.24	6.19	1.28–1.34
R. malletei	6.375	0.328	5.13	7.31	6.04–6.70	6.100	0.339	4.92	6.95	1.27–1.32
R. nelsonae	5.430	0.212	4.94	5.98	5.22–5.64	5.315	0.297	4.81	6.21	1.27–1.31

Note: Shaded boxes represent values that were used in building the dichotomous key for soldiers and alates.