Pheidole quadricuspis Emery, 1900

Pheidole quadricuspis Emery, 1900: 683 . Pheidole (Pheidolacanthinus) quadricuspis . ‒ Emery, 1921: 683.

Type material examined: MSNG; Indonesia, Sumatra, Si-Rambé; E. Modigliani leg.; xii/1890 - iii/1891 [3 syntypes (1 major, 2 minor), type images: CASENT0904267 and CASENT0905766 of AntWeb (http://www.antweb.org/)].

Nontype material examined: ACEG; Malaysia, Selangor, Ulu Gombak, F. Ito leg. [FI96- 604, -605; FI98-113, -114, -130, -188, -197], Pahang, Cameron Highlands, ca. 1000 m alt., F. Ito leg. [FI92MCH-16, -32], Malaysia, Sabah, Gunong Rara, K. Eguchi leg. [Eg96-BOR-315, -319, -320, -343A, -343B, -353, -370, -372; Eg97-BOR-530, -557, -558], Sepilok forest, K. Eguchi leg. [Eg97-BOR-495]. ‒ ACEG; Brunei, Tutong, Tasek Merimbun, K. Eguchi leg. [Eg99- BOR-039, 111, 112, 522, 585. ‒ ACEG; Eg00- BOR-037 (Accession No.: EF518393.1), 0 48, -057, -058], Temburong, Kuala Belalong Field Studies Centre, K. Eguchi leg. [Eg99-BOR-222]. ‒ ACEG; Indonesia, East Kalimantan, Kutai N. P.; Sk. Yamane leg., 13/ ix/1993, North Sumatra, Pulau Nias (Lotu), Sk. Yamane leg. [SU02-SKY-126, -134, -137], West Sumatra, Lubuk Gadang; Sk. Yamane leg., 21-23/viii/1985. ‒ ACEG; Philippines, Camarines Sur, Naga City, Panicuason Vill., D. General et al. leg., 7/iii/2003.

Distinction from P. leloi: In the major, anterior part of vertex longitudinally rugose. In the minor, head almost completely smooth, with a few standing hairs; dorsal face of promesonotal dome smooth dorsomedially, and weakly punctate anterodorsally, laterally and posterodorsally; mesosoma lacking standing hairs; petiolar node in lateral view blunt at apex, and in posterior view not emarginate at apex.