Stigmatomma zwaluwenburgi Williams, 1946

Amblyopone zwaluwenburgi is a small brownish-yellow species with a square head, no eye facets and long slender mandibles. The mandibles are armed with a long pointed apical tooth, a minute subapical tooth, a strong third tooth and four minute basal teeth. Amblyopone zwaluwenburgi is only known from three islands in the Pacific: Christmas Island (Framenau & Thomas, 2008; Taylor, 1990), Fiji (Sarnat & Economo, 2012), and Hawaii (Williams, 1946). The species is evidently quite rare. It has not been seen in Hawaii since its original collection in 1945 (Reimer, 1994), and was collected only once in Fiji. The native range is not known, but Wilson and Taylor (1967) concurred with Brown’s (1960)prediction that, “…the species has been introduced into Hawaii from Melanesia or the East Indies.” Amblyopone zwaluwenburgi is evidently a hypogaeic ant that can tolerate disturbed habitats. The Hawaii collection was made from the soil of a sugar cane field (Williams, 1946), and the Fiji collection was made from a litter sample taken from coastal area with abundant populations of introduced and widespread species (Sarnat & Economo, 2012).