CREMATOGASTER UDO FOREL, 1905
Crematogaster sordidula var. udo Forel 1905: 20;
worker, Tjompea, Java, Indonesia [types not found in MHNG].
Crematogaster udo; Emery, 1922: 132 [Raised to species].
Crematogaster udo; Emery, 1922: 132 [Combination in C. ( Orthocrema)].
Crematogaster udo; Blaimer, 2012c: 55 [Combination in C. ( Orthocrema)].
Comments: We have not been able to examine the type material of C. udo . Forel (1905) referred the affinity with C. fritzi Emery in the original description, whereas Menozzi’s key (1935) clearly separated C. fritzi from other Orthocrema species, including C. udo, by having two pairs of hairs on mesosomal dorsum. Taxonomic relationship of C. udo with C. fritzi will remain unresolved until the type material is examined.