Crematogaster crassicornis

Identification
Hosoishi and Ogata (2016) - Examination of syntype workers in MCSN and MHNG reveals that C. crassicornis does not belong to the subgenus Orthocrema. Although this species has two-segmented antennal club, characteristic features include: anterolateral margins of clypeus protruded anteriorly; petiole without node-like process posteriorly in lateral view; postpetiole bilobed with longitudinal median sulcus. These features are characteristic of the subgenus Crematogaster and we consider C. crassicornis to be referred to that subgenus.

Distribution based on Regional Taxon Lists
Indo-Australian Region: Philippines.

Nomenclature

 * . Crematogaster crassicornis Emery, 1893g: 265, pl. 2, figs. 4, 5 (w.) PHILIPPINES (Luzon I.).
 * Type-material: syntype workers (number not stated).
 * Type-locality: Philippinea: Luzon, Manila, iii.-iv.1890 (E. Simon).
 * Type-depositories: MHNG, MSNG.
 * Combination in C. (Orthocrema): Emery, 1922e: 132.
 * Status as species: Wheeler, W.M. 1909d: 340; Emery, 1922e: 132; Menozzi, 1935a: 112 (in key); Chapman & Capco, 1951: 97; Baltazar, 1966: 251; Bolton, 1995b: 151; Hosoishi & Ogata, 2016a: 602.
 * Distribution: Philippines (Luzon).
 * crassipes. Crematogaster crassipes Luederwaldt, 1918: 41. Nomen nudum (attributed to Mayr).
 * [Note: this is probably an incorrect entry for Pheidole crassipes Mayr.]

Type Material
Hosoishi and Ogata (2016) - Syntype workers, Manila, Philippines (M. E. Simon) (,, examined).

References based on Global Ant Biodiversity Informatics

 * Hosoishi S. and K. Ogata. 2009. A check list of the ant genus Crematogaster in Asia (Hymenoptera: Formicidae). Bull. Inst. Trop. Agr. Kyushu Univ. 32: 43-83.
 * Wheeler W. M. 1909. Ants of Formosa and the Philippines. Bulletin of the American Museum of Natural History 26: 333-345.