Primary type information:
Type-material: holotype worker. Type-locality: Indonesia: Aru Is (A.R. Wallace). Type-depository: OXUM.
Type notes:
Specimen supposedly the worker holotype of Meranoplus spinosus (OXUM, examined) is actually a queen of a Neotropical Procryptocerus species. Therefore, either the type-locality is in error (unlikely), or the specimen has been changed, or perhaps both (Bolton, 1995b: 367).