Leptothorax semenovi Ruzsky, 1903b: 311 (w.) TURKMENISTAN. Palearctic.

Primary type information: Primary type material: neotype worker (by designation of Dlussky & Soyunov, 1988: 35). Primary type locality: neotype Turkmenistan: W Kazakhstan oblast, vic. Dzhanybek, 5.iv.1972 (Yu. Chernov). Primary type depository: ZMUM (neotype). Type notes: Original type data: syntype workers (number not stated), Turkmenistan (“Transcaspia”): Kyrgyz steppe, vic. Gyaurs, 3.v.1889 (M. Borg) (material lost (Dlussky & Soyunov, 1988: 33)).