Taxonomic history
Crawley, 1924a PDF: 388 (q.); Wheeler & Wheeler, 1952c PDF: 651 (l.); Imai et al., 1984 PDF: 67 (k.); Satria et al., 2015 PDF: 27 (m.).Status as species: Smith, 1858a PDF: 79; Roger, 1861a PDF: 27; Smith, 1861b PDF: 44; Roger, 1863b PDF: 21; Mayr, 1863a PDF: 437; Smith, 1871a PDF: 319; Mayr, 1872 PDF: 148; Mayr, 1886c PDF: 358; Emery, 1887f PDF: 428; André, 1892c PDF: 52; Emery, 1892f PDF: 560 (in key); Dalla Torre, 1893 PDF: 52; Emery, 1893i PDF: 261; Emery, 1895m: 463; Forel, 1900d PDF: 58; Emery, 1900: 672; Emery, 1901i PDF: 566; Bingham, 1903 PDF: 48; Forel, 1905f PDF: 8; Emery, 1911e PDF: 114; Forel, 1911b PDF: 193; Forel, 1911f PDF: 382; Forel, 1912e PDF: 97; Forel, 1913l PDF: 19; Forel, 1915a PDF: 22; Viehmeyer, 1916a PDF: 116; Wheeler, 1919f PDF: 60; Crawley, 1924a PDF: 388; Stitz, 1925c PDF: 115; Karavaiev, 1925c PDF: 293; Wheeler, 1927h PDF: 86; Santschi, 1928h PDF: 124; Stitz, 1932b PDF: 733; Donisthorpe, 1932c PDF: 447; Karavaiev, 1935a PDF: 75; Chapman & Capco, 1951 PDF: 45; Brown, 1976c PDF: 105, 163; Bolton, 1995b: 297; Mathew & Tiwari, 2000 PDF: 290; Jaitrong & Nabhitabhata, 2005 PDF: 29; Zhou & Ran, 2010: 107; Pfeiffer et al., 2011 PDF: 56; Sorger & Zettel, 2011 PDF: 157 (redescription); Guénard & Dunn, 2012 PDF: 60; Satria et al., 2015 PDF: 21 (redescription); Bharti et al., 2016 PDF: 53; Jaitrong et al., 2016 PDF: 42; Chen et al., 2018 10.25221/fee.356.1 PDF: 6 (in key).Senior synonym of Odontomachus rixosus conifera: Brown, 1976c PDF: 105; Bolton, 1995b: 297; Satria et al., 2015 PDF: 21.Senior synonym of Odontomachus rixosus obscurior: Brown, 1976c PDF: 105; Bolton, 1995b: 297; Sorger & Zettel, 2011 PDF: 157; Satria et al., 2015 PDF: 21.Worker. Length 4 1/2 lines.-Head, antennae and mandibles reddish-brown; the sulcations on the face obliquely striated behind, and smooth and shining towards the mouth; the elevation between the sulcations longitudinally striated, the hinder portion of the head smooth and shining, the central longitudinal impression not very profound. The thorax transversely striated, the prothorax circularly and delicately so, of an obscure reddishbrown; the coxae and femora pale testaceous; the tibiae and tarsi pale ferruginous. Abdomen reddish-brown, very smooth and shining, the base and apex paler; the node conical, terminating above in an acute point, and produced at the base beneath into an obtuse tooth.
Hab. Singapore.
O. rufo-fuscus, femoribus pallide testaceis; margine interna mandibulorum subserrata, thorace transversim striato.
Worker. Length 4 1/2 lines. Reddish-brown: the coxae, trochanters and femora pale testaceous, the extreme base, and apex of the latter, darker; the mandibles with two blunt teeth at their apex, the outer tooth notched on one side, forming a second tooth; the inner edge slightly serrated, having only four or five minute teeth; the prominence between the sulcations on the anterior part of the head, obliquely striated; the striations crossing the sulcations, but terminating opposite the hinder margin of the eyes; the depression on the sides of the head striated, the striation becoming obsolete at the sides of the head. The thorax transversely striated, the metathorax most strongly so. The scale of the abdomen conical, terminating above in an acute spine; the abdomen very smooth and shining, the apex pale testaceous.
Hab. Singapore.
This species bears a strong resemblance to the type of the genus, O. haematodes, a South American insect; but that species has the head shorter, and the vertex delicately striated; the antennae are shorter, the joints shorter: specimens which I consider to be identical with the present species, are in the collection at the British Museum, from Birmah and Singapore.
, Smith, Proc. Linn. Soc. ii. 64. 1.
Hab. Ternati; Singapore.
