Primary type information:
Primary type material: syntype workers, syntype queens (numbers not stated, “numerous), 2 syntype males. Primary type localities: 2 colonies Switzerland: <1 km. below Zermatt, W slope Matter Valley, ca 1620 m., 13-14.viii.1909 (W.M. Wheeler), 4 colonies Switzerland: right bank of Triftbach, ca 15 mins walk from Zermatt, 18.viii.1909 (W.M. Wheeler). Primary type depository: MCZC.