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Genus: Pheidologeton   Mayr, 1862 

Classification:

Note: Not a Valid Taxon Name


Current Valid Name:

Carebara

Taxonomic History (provided by Barry Bolton, 2018)

Pheidologeton Mayr, 1862 PDF: 750. Type-species: Oecodoma diversa, by subsequent designation of Bingham, 1903 PDF: 160. AntCat AntWiki HOL

Taxonomic history

Pheidologeton in Myrmicidae, Pheidolidae: Emery, 1877b PDF: 81.
Pheidologeton as junior synonym of Carebara: Fischer et al., 2014 PDF: 63.
Genus Pheidologeton references
Roger, 1863b PDF: 30 (catalogue); Mayr, 1863a PDF: 442 (catalogue); Mayr, 1865 PDF: 22 (diagnosis); Mayr, 1867a PDF: 100 (diagnosis); Dalla Torre, 1893 PDF: 72 (catalogue); Forel, 1903a PDF: 690 (India & Sri Lanka species key); Bingham, 1903 PDF: 162 (India, Sri Lanka & Burma species key); Wheeler, 1922: 682 (subgenera key); Wheeler, 1922: 880 (Afrotropical catalogue); Emery, 1924f PDF: 211 (diagnosis, catalogue); Chapman & Capco, 1951 PDF: 155, 158 (Asia Amauromyrmex, Pheidologeton checklists); Ettershank, 1966 PDF: 115 (diagnosis, review of genus, checklist); Taylor & Brown, 1985: 79 (Australia catalogue); Taylor, 1987a PDF: 55 (Australia checklist); Bolton, 1995a PDF: 1051 (census); Bolton, 1995b: 333 (catalogue); Wu & Wang, 1995a: 72 (China species key); Shattuck, 1999: 156 (Australia synopsis); Zhou, 2001A PDF: 89 (China, Guangxi species key); Zhou et al., 2006 PDF: 870 (China species key); Terayama, 2009 PDF: 156 (Taiwan species key).

Taxon Page Images:



Worker polymorphism in the marauder ant Pheidologeton affinis. Pictured here is a single supermajor worker, two major workers, and full complement of minor workers. These insects are all sisters and are essentially genetically identical, their different morphologies a result of developmental plasticity. Rossville, Queensland, Australia.
Image © Alex Wild.

Distribution:

  Geographic regions: Not found on any curated Geolocale/Taxon lists.
  Native biogeographic regions (according to species list records):
    Australasia, Indomalaya

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Eguchi, K., Viet, B. T. & Yamane, S., 2011, Generic synopsis of the Formicidae of Vietnam (Insecta: Hymenoptera), Part I - Myrmicinae and Pseudomyrmicinae., Zootaxa 2878, pp. 1-61

Pheidologeton MayrHNS, 1862

Taxonomy. The genus PheidologetonHNS is assigned to the CarebaraHNS genus group of the tribe SolenopsidiniHNS (Bolton 2003). The genus was preliminarily reviewed by Yamane (2000). Workers of Vietnamese species have the following features.

Worker polymorphic; head in full-face view oval or subrectangular in minor, subrectangular or subtrapezoidal with roundly expanded vertexal lobe in media and major; frontal carina and antennal scrobe absent; median portion of clypeus not margined laterally by conspicuous carinae; posteromedian portion of clypeus relatively broadly inserted between frontal lobes; median clypeal seta absent; mandible triangular, 4-6 teeth on masticatory margin (teeth more rounded or worn in major); antenna 11-segmented, with 2-segmented club; eye small to moderate in size, sometimes consisting of only a few ommatidia; mesosoma in lateral view relatively slender in minor, but short and robust in major; promesonotum in lateral view usually well raised as a dome, much higher than anterodorsal border of propodeum; promesonotal suture completely absent dorsally in minor, but often conspicuous in major; posterior slope of promesonotal dome often with a prominence in major; metanotal suture weakly impressed dorsally; propodeal spine always present, but variable in size and shape; propodeum lobe low or almost absent; petiole consisting of anterior peduncle and node (but anterior peduncle ill defined from node in major); gastral shoulder distinct to indistinct.

The minor worker of PheidologetonHNS is similar to the minor of OligomyrmexHNS (for distinguished characters see under OligomyrmexHNS) and the worker of LophomyrmexHNS (see under LophomyrmexHNS).

Vietnamese species. One species has been described from Vietnam: varius SantschiHNS (type locality: Ho Chi Minh City). Four additional species have been recognized by us from Vietnam: diversus (Jerdon) [= sp. eg-3] (Nam Cat Tien, Ninh Thuan, Pu Mat, Quang Tri, Tam Dao); trechideros ZhouHNS et Zheng [= sp. eg-1] (Chua Yen Tu, Pu Mat, Tay Yen Tu, Van Ban); vespillo WheelerHNS [= sp. eg-2] (Ba Vi, Cuc Phuong, Tay Yen Tu); sp. eg-4 [= cf. affinis (Jerdon)] (Binh Chau-Phuoc Buu, Cuc Phuong, Nam Cat Tien, Pu Mat).

Bionomics. PheidologetonHNS diversus usually inhabits urban areas, bare lands, grasslands, forest edges and sparse forests. In contrast, the other Vietnamese species of PheidologetonHNS inhabit rather developed forests. Pheidologeton conlonies are extremely large and usually occur in soil under logs and stones. Permanent foraging trails, galleries and tunnels extend outward from the nests. A mass of foragers gather various kinds of food such as living and dead invertebrates, honeydew of homopterans and plant matter (nectar, fruits, seeds, etc).



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