Primary type information:
Primary type material: syntype workers (number not stated, “several”). Primary type locality: Laos: between Vientiane and Luang Prabang (
V. de Salvaza). Primary type depositories: 
NHMB, 
SIZK. Primary type specimen: 
CASENT0917097.
Type notes:
1) 
Kostyuk, 1976: 99, and 
Radchenko et al., 2024: 282, cite 1 worker syntype in 
SIZK. 2) 
Baroni Urbani, 1977e: 74, and 
Shattuck, 1994: 44, cite 10 worker syntypes in 
NHMB. 3) The 10 worker syntypes in 
NHMB are on three pins of 3, 3, and 4 workers. Two pins have an empty point indicating that 2 individuals were lost at some point.