Based on similarities in external
morphology, especially the head and body of the major worker,
P. braueri seems to belong to a widespread group of morphologically related species. The geographic distribution of this potentially
monophyletic species group ranges from the
Seychelles in the Southwest
Indian Ocean to
Borneo and to several smaller islands in
Micronesia and
Melanesia in the South and West
Pacific Ocean. This group contains several species with majors that resemble those of
P. braueri in key characters including head morphology and the shape of the
mesosoma and waist segments. Possibly related species are
Pheidole philemon (
Solomon Islands),
P. hortensis (
Borneo and
Indonesia),
P. maculifrons (
Philippines),
P. recondita (
Guam),
P. fantasia (Philippines),
P. clypeocornis,
P. kikutai,
P. retivertex,
P. rugifera,
P. sayapensis, (these last five from Borneo), and
P. tjibodana (
Southeast Asia). ==Description==