“…To date, a comprehensive Sumatran ant list is currently unavailable, except from Antwiki [2] based on the studies of ants for few decades in Sumatra [3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22]. Recently, two more species were described from this island by Satria and Yamane [23]. Then total of ants species in Sumatra is 600 species [24].…”