Crematogaster mucronata

Nothing is known about the biology of .

Identification
Hosoishi and Ogata (2009) - This species is uniquely characterized by the combination of (1) 3-jointed antennal club; (2) steeply raised pronotum; (3) developed propodeal spines; (4) moderately swollen propodeum; and (5) processes of the posterior corners of the petiole in dorsal view. In the future, this species may be referred to another subgenus by these unique characters.

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

Nomenclature

 * . Crematogaster deformis var. mucronata Emery, 1900d: 690 (w.) INDONESIA (Sumatra).
 * Type-material: holotype worker.
 * Type-locality: Indonesia: Sumatra, Pangherang Pisang (E. Modigliani).
 * Type-depository: MSNG.
 * Combination in C. (Physocrema): Emery, 1922e: 140.
 * Status as species: Emery, 1922e: 140; Donisthorpe, 1941l: 226 (in key); Chapman & Capco, 1951: 103; Bolton, 1995b: 158; Hosoishi & Ogata, 2009b: 24 (redescription).
 * Senior synonym of fulmeki: Hosoishi & Ogata, 2009b: 24.#
 * Distribution: Indonesia (Sumatra).
 * fulmeki. Crematogaster (Physocrema) fulmeki Forel, 1922: 95 (w.) INDONESIA (Sumatra).
 * Type-material: lectotype worker (by designation of Hosoishi & Ogata, 2009b: 24), 2 paralectotype workers.
 * Type-locality: lectotype Indonesia: Sumatra (L. Fulmek); paralectotypes with same data.
 * Type-depositories: MHNG (lectotype); MHNG, MSNG (paralectotypes).
 * Status as species: Crawley, 1924: 398; Santschi, 1928h: 127; Bolton, 1995b: 153.
 * Junior synonym of mucronata: Hosoishi & Ogata, 2009b: 24.

Worker
Hosoishi and Ogata (2009) - HW 0.96–1.00; HL 0.92–0.97; CI 103–104; SL 0.68–0.69; SI 68–72; EL 0.16–0.19; PW 0.57–0.65; WL 1.03–1.09; PSL 0.10–0.12; PtL 0.28–0.32; PtW 0.22–0.24; PtH 0.16–0.19; PpL 0.19–0.20; PpW 0.26–0.28; PtHI 53–62; PtWI 70–76; PpWI 127–140; WI 117–119 (Three workers measured).

Workers monomorphic in size.

Scape not reaching posterior corner of head.

In lateral view, pronotum rises steeply; pronotum and mesonotum forming a single convexity; propodeum distinctly raised relative to promesonotum. Anterior margin of pronotal collar not concave in dorsal view. Metanotal groove convex posteriorly in dorsal view, deep; thorax strongly constricted in middle in dorsal view. In dorsal view, no longitudinal rugulae connecting between mesonotum and propodeum; the boundary distinct. Propodeal spiracle situated away from the metapleural gland orifice, the distance between them much greater than the propodeal spiracle diameter. Propodeal spines present.

In dorsal view, petiole subquadrate with subparallel sides, longer than broad. Postpetiole weakly bilobed but longitudinal median sulcus distinctly undeveloped, posterior corners acute.

Clypeus smooth and shining without distinct rugulae. Integument smooth.

Standing pilosity sparse, some pairs on dorsal face of head and many on dorsal portion of pronotum. Dorsal face of head with decumbent setae. Clypeus with long and short setae. Mesosoma with abundant setae. Fourth abdominal tergite with abundant appressed long setae.

Body color rufous to brown.

Type Material
Hosoishi and Ogata (2009) - Holotype worker from INDONESIA: Pangherang-Pisang, Sumatra (E. Modigliani) [examined].

References based on Global Ant Biodiversity Informatics

 * Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
 * Crawley W.C. 1924. Ants from Sumatra, with biological notes by Edward Jacobson. Annals and Magazine of Natural History (9)13: 380-409
 * Donisthorpe H. 1941. Description of a new species of Crematogaster Lund, subgenus Physocrema Forel, with a list of, and a key to, the known species of the subgenus. Entomologist 74: 225-227.
 * Emery C. Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei. Annali del Museo Civico di Storia Naturale 40: 661-722.
 * Emery, C.. "Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei." Annali del Museo Civico di Storia Naturale Giacomo Doria (Genova) (2) 20, no. 40 (1900): 661-722.
 * Forel A. 1922. Glanures myrmécologiques en 1922. Revue Suisse de Zoologie. 30: 87-102.
 * Hosoichi S., and K. Ogata. 2009. A taxonomic revision of the Asian endemic subgenus Physocrema of the genus Crematogaster (Hymenoptera: Formicidae). Zootaxa 2062: 15-36.
 * 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.
 * Santschi F. 1928. Fourmis de Sumatra, récoltées par Mr. J. B. Corporaal. Tijdschrift voor Entomologie 71: 119-140.