Primary type information:
Primary type material: 1 (?) syntype major worker, 1 (?) syntype queen. Primary type localities: major worker(s) Indonesia: Sumatra, Deli, Indrapura Estate (Siemssen), queen(s) Sumatra, Langkat (E. Versmann). Primary type depository: possibly MHNG.
1) No indication of number of specimens is given. 2) Type material originated in Hamburg Museum, so perhaps destroyed in World War II.