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Species: Centromyrmex hamulatus   (Karavaiev, 1925) 

Classification:
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Taxonomic History (provided by Barry Bolton, 2018)

Typhloteras hamulatum Karavaiev, 1925b PDF: 129, fig. 5 (w.) INDONESIA (Sumatra). Indomalaya. AntCat AntWiki HOL

Taxonomic history

Karavaiev, 1926d PDF: 419 (q.m.).
Combination in Centromyrmex: Brown, 1953c PDF: 8.

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Asia: Indonesia, Malaysia
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Indomalaya

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Bolton, B. & Fisher, B. L., 2008, Afrotropical ants of the ponerine genera Centromyrmex Mayr, Promyopias Santschi gen. rev. and Feroponera gen. n., with a revised key to genera of African Ponerinae (Hymenoptera: Formicidae)., Zootaxa 1929, pp. 1-37

Centromyrmex hamulatus (Karavaiev)HNS

Typhloteras hamulatum Karavaiev, 1925: 129 (worker). [Combination in CentromyrmexHNS by Brown, 1953: 8. Description of queen and male: Karavaiev, 1926: 419.]

This is currently the sole member of the C. hamulatusHNS group and is quite widespread in the Malesian region. In morphological terms hamulatusHNS forms a striking intermediary between the Old World species of the bequaertiHNS group and the feaeHNS group, but it also has several apomorphies of its own.

i. Characters shared between workers of hamulatusHNS and bequaertiHNS group: shape of head capsule; close proximity of frontal lobes medially; non-swollen protibiae; lack of hypertrophy of procoxae; lack of pronotal margination; elongate slit-like orifice of propodeal spiracle; presence of spiniform metasternal process.

ii. Characters shared between workers of hamulatusHNS and feaeHNS group: structure of mandible; dorsal outline shape of mesonotum and propodeum; position of propodeal spiracle; bilaterally compressed propodeal dorsum; petiole anteriorly pedunculate; form of prora; distribution of setae; monomorphic worker caste.

iii. Characters of hamulatusHNS workers not shared by bequaertiHNS or feaeHNS groups: mesotibia with 1 spur; metatibia with 1 spur; subpetiolar process a pair of stout teeth; mesopleuron with a weak transverse sulcus; constriction of second gastral segment strong and conspicuously cross-ribbed.

Specimen Habitat Summary

Type specimens: syntype of Typhloteras hamulatum: casent0915171, casent0916831



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