Diacamma rugosum Le Guill. subsp. arcuata Karawajew, 1925b: 118, w.

Current status: Diacamma rugosum arcuatum (s/f Ponerinae).

Type locality(-ies): “ Manguinang (Sumatra), 25.XI.1913, O. John, Einzelläufer” .

Original Karawajew labels: 1 w (def.), “ Sumatra. / Manguinang, / O. John. 1913”, “ Diacamma / rugosum / arcuatum Kar. / Karawajew det.”, “Dlussky / restaur.”.

Material: HOLOTYPE, w (CASENT0916821) (Box 2).