Crematogaster mucronata (Hosoishi, S. & Ogata, K. 2009)
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Ordo: Hymenoptera
Familia: Formicidae
Genus: Crematogaster
Name
Crematogaster mucronata Hosoishi, S., 2009 – Wikispecies link – Pensoft Profile
- Crematogaster mucronata Hosoishi, S., 2009, Zootaxa 2062: 24-26.
Description
(Figs 14, 26)
Materials Examined
Crematogaster deformisHNS var. mucronata Emery, 1900: 690. Holotype worker from INDONESIA: Pangherang-Pisang, Sumatra (E. Modigliani) (MCSN) [examined]. Combination in C. (Physocrema) and raised to species by Emery, 1922: 140; Donisthorpe, 1941: 226. Crematogaster (Physocrema) fulmekiHNS Forel, 1922: 95. LECTOTYPE worker (MHNG worker) (by present designation) and two paralectotype workers from INDONESIA: Sumatra (L. Fulmeki) (MCSN, MHNG) [examined]. See also Santschi, 1928: 127. Syn. nov.
Description
Measurements and indices. 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). Description of worker. 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.
Discussion
FIGURES 10-17. PhysocremaHNS species in lateral view. Scale bars are all 0.5mm. 10- C. (P.) ampullarisHNS, [Sampulage (1000m), nr Mangktana, S. Sulawesi]; 11- C. (P.) auritaHNS, [Maeklong Watershed Research Station, Kanchanaburi Prov.]; 12- C. (P.) difformisHNS, [Lambir N. P., Miri, Sarawak, Borneo]; 13- C. (P.) inflataHNS, [Ulu Gombak, Malay Peninsula]; 14- C. (P.) mucronataHNS, [Satar's House, Ulu Gadut, nr Padang, Sumatra]; 15- C. (P.) onustaHNS, [Barito Ulu 150m alt., Kalimantanm]; 16- C. (P.) physothoraxHNS, [Universiti Kebangsaan Malaysia Forest, Malay Peninsula]; 17- C. (P.) sewardiHNS, [7miles, Cameron Highland, Malay Peninsula].
Distribution
Distribution. This species is known from Sumatra (Fig. 26).
Discussion
Remarks. 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.
Materials Examined
Specimens examined. INDONESIA: 2 workers, Satar's House, Ulu Gadut, nr Padang, Sumatra, 15-16. viii. 1989 (E. Suzuki); 4 workers, Lubuk Gadang, Sumatra, 21-23. viii. 1985 (Sk. Yamane).
Taxon Treatment
- Hosoishi, S.; Ogata, K.; 2009: A taxonomic revision of the Asian endemic subgenus Physocrema of the genus Crematogaster (Hymenoptera: Formicidae)., Zootaxa 2062: 24-26. doi
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