Neoperla simplicior Navas

Neoperla simplicior Navas, 1932:953 . Holotype ♂, Pangherang‐ Pisang, Sumatra

Neoperla simplicior: Zwick, 1983:190 . Redescription and new records

Neoperla simplicior: Zwick & Sivec, 1985:129 . New records

Material examined. Indonesia: Sumatra: Aceh, Mt. Leuser National Park, Ketambe Research Station, Alas River, 3° 41’ N, 97° 39’ E, 350 m, 2‐6 September 1989, ROM 893020, B. Hubley, D.C. Darling, W.K. Gall, 3 ♂ pinned, 1 ♂ alcohol (ROM, MZB) .

Remarks. This species was previously reported from about 15 Sumatran sites (Zwick 1983; Zwick & Sivec 1985) including the Alas Valley.