Strumigenys membranifera is a minute, relatively uncommon species. The distinct appearance of P. membranifera is characterized by a triangular head, six-segmented antennae with a two-segmented antennal club, antennal scrobes, triangular mandibles, spongiform appendages on the propodeum and waist, and spatulate hairs on the antennal scapes. Like all myrmicines, S. membranifera also has a two-segmented waist and a gaster armed with a sting.
Wilson and Taylor (1967) offer the following discussion of S. membranifera.
Brown (1949) states that T. membranifera [the species was referred to as Trichoscapa membranifera prior to the taxonomic revision of Bolton (2000)] is probably of African origin. It has been spread by human commerce through a large part of the tropics and warm temperate zones, including such diverse areas as the Fiji Is., eastern China, West Indies and southeastern United States. The species has an ecological amplitude unusual for a dacetine, nesting in major habitats from dense woodland to dry, open cultivated fields. Wilson (1953) describes the feeding behavior of the workers; they are predaceous on a wide variety of small, soft-bodied arthropods.