Messor similis var. clypeatus Kuznetsov-Ugamsky, 1927a: 93 (in key) (w.) KAZAKHSTAN. Palearctic.

Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: Kazakhstan: “Central Asia”: Hungersteppe: railway stations Obrutschevo and Syr-Darjinskaya” (N.N. Kuznetsov-Ugamsky). Primary type depository: ZMUM.