Strumigenys angulata is a rarely collected species of Strumigenys in many parts of the country, but in AL and MS, it seems to be relatively common and has been collected somewhat regularly in soil and litter in mixed and deciduous forests. This species can really only be confused with one other species, S. pergandei, S. angulata differs by having the anterior and lateral margins of the clypeus meeting in angular corners (see full face photo above), rather than rounded curves (as in S. pergandei); the second tooth on the mandible is longer than the basal tooth, whereas, in S. pergandei, the basal tooth is longer than the second or third tooth; the postpetiolar disc lacks posteriorly curved spatulate hairs (present in S. pergandei); and the mesonotal dorsum has a pair of erect simple hairs (lacking in S. pergandei)