New synonymy of Proceratium williamsi Tiwari (Hymenoptera, Formicidae).
Proceratium bhutanense De Andrade, 2003, syn. n. is here found to be conspecific with Proceratium williamsi Tiwari, 2000 and accordingly treated as a junior synonym.
['Bharti|Himender|H|', 'Wachkoo|Aijaz Ahmad|AA|']
synonymy Proceratium williamsi Proceratium bhutanense Ants India