Ischnomyrmex Mayr, 1862 junior synonym of current valid taxon Pheidole Westwood, 1839
Ischnomyrmex Mayr, 1862: 738 Type-species: Myrmica longipes (obsolete combination of Pheidole longipes), by monotypy.
Citations

Extant: 0 valid species (6 obsolete combinations, 1 unavailable misspelling, 1 unavailable uncategorized), 0 valid subspecies (3 obsolete combinations)