Stigmatomma trigonignathum is a species of ant in the subfamilyAmblyoponinae. It is considered one of the rarest ants in the world, only known from one specimen collected in 1948[1] and another observed in 2008. Both records are from the Piedmont region of North Carolina.[2]
Description
The 1948 type specimen is 6.12 mm long, including mandibles but excluding stinger. It is mostly uniform ferruginous in color.[1]
^Guénard, Benoit; McCaffrey, Katherine A.; Lucky, Andrea; Dunn, Rob R. (2012). "Ants of North Carolina: An updated list (Hymenoptera: Formicidae)". Zootaxa. 3552: 1. doi:10.11646/zootaxa.3552.1.1.