Strumigenys bimarginata, is a very rarely collected ant. This species and one other, S. filirrhina, have a continous broad groove around periphery of the anterior and lateral margins of the clypeus. When viewed in profile, the edge of the clypeus has a distinct dorsal border with a more strongly prominent ventral border, the two borders separated by the evenly concave peripheral groove, and both borders are visible and concentric in full face view as the lower border projects beyound the upper border. Both species also have similar hairs on the dorsum and margins of the clypeus with the hairs not spatulate or spoon shaped, but rather, simple, flattened, or splayed or weakly forked apically. S. bimarginata lacks long flagellate hairs in front of the antennal sockets, on the dorsolateral margin of head, or on cephalic dorsum as is seen in S. filirrhina..