Propodilobus pingorum

AntWiki: The Ants --- Online
Propodilobus pingorum
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Propodilobus
Species: P. pingorum
Binomial name
Propodilobus pingorum
(DuBois, 2000)

Propodilobus pingorum casent0171177 p 1 high.jpg

Propodilobus pingorum casent0171177 d 1 high.jpg

Specimen Labels

Synonyms

Collected as part of a soil core in mixed dipterocarp forest, in Berlese Funnel extractions of leaf mold and from winkler sampling of leaf litter. Little else is known about this species or genus. It is only known from the worker caste.

Identification

Branstetter (2009) - Propodilobus can be distinguished from Stenamma by the reduced palp formula (3,2 versus 4,3), smoothly convex anterior clypeal margin, distinct 3-segmented antennal club (ACI 74-75 versus 60-70), and elongate propodeal lobes. In addition, the postpetiole is broader than long and the scape and funiculus of Propodilobus have a more robust appearance than in Stenamma.

Propodilobus may be confused with Lordomyrma since Lordomyrma is morphologically diverse and currently lacks an adequate diagnosis. It is possible that when a more comprehensive morphological review of Lordomyrma is undertaken or the phylogenetic position of Propodilobus is tested with molecular data, Propodilobus will be synonymized under Lordomyrma or a related genus. Despite this, from the diagnoses listed in Sarnat (2006) and Taylor (2009), Propodilobus can be distinguished from Lordomyrma by its lack of longitudinal carinae on the clypeus, lack of scrobes and frontal carinae, the presence of an elongate petiolar peduncle, and the presence of elongate propodeal lobes.

Distribution

Borneo (Sarawak, Malaysia)

Latitudinal Distribution Pattern

Latitudinal Range: 4.95° to 1.33°.

 
North
Temperate 		North
Subtropical 		Tropical South
Subtropical 		South
Temperate

Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo, Indonesia, Malaysia (type locality).

Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.
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Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.
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Biology

Castes

Known only from the worker caste.

Images from AntWeb

Propodilobus pingorum casent0171177 p 2 high.jpg
Paratype of Propodilobus pingorum. Worker. Specimen code casent0171177. Photographer Michael Branstetter, uploaded by California Academy of Sciences. Owned by ANIC, Canberra, Australia.

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • orientale. Stenamma orientale DuBois, 1998b: 308, figs. 41-43, 210-212 (w.) MALAYSIA (Sarawak).
    • Type-material: holotype worker, 7 paratype workers.
    • Type-locality: holotype Malaysia: Sarawak, First Division, Semengoh Forest Reserve, ca 19 km. SW Kuching (ca 2 km. S of 10th mi. Bazaar, on Kuching-Penrissen raod), 28-31.v.1968, acc. 68.196 (R.W. Taylor); paratypes: 3 workers with same data, 1 worker with same data but 1-4.vi.1968, acc. 68.262, 1 worker with same data but 28-31.vi.1968, acc. 68.204, 1 worker (in alcohol) with same data but acc.68.199, 1 worker Sarawak, 4th Division, Gunong Mulu Nat. Park, ii.1978 (N.M. Collins).
    • Type-depositories: ANIC (holotype); ANIC, BMNH, MBDC, MHNG (paratypes).
    • [Junior primary homonym of Stenamma orientalis Emery, 1898c: 143.]
    • Replacement name: Stenamma pingorum DuBois, 2000: 40.
  • pingorum. Stenamma pingorum DuBois, 2000: 40.
    • Replacement name for Stenamma orientale DuBois, 1998b: 308. [Junior primary homonym of Stenamma orientalis Emery, 1898c: 143.]
    • Combination in Propodilobus: Branstetter, 2009: 55.
    • Status as species: Branstetter, 2009: 55; Pfeiffer, et al. 2011: 50.
    • Distribution: Malaysia (Sarawak).

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

  • Emery 1898, species description.
  • Emery 1898 p. 143.png
  • Emery 1898 p. 144.png
  • Emery 1898 p. 145.png

Type Material

Brandstetter (2009) - Holotype worker and paratype workers, MALAYSIA: Sarawak, First Division, Semengoh Forest Reserve, 19 km SW Kuching (1.33ºN, 110.20ºW) (2 km S 10th mile Bazaar, on Kuching-Penrissen Road), 28–31 May 1968, R.W. Taylor, RWT-68.196, leaf mould berlesate in rainforest [Holotype and paratype workers in Australian National Insect Collection examined.]

References

References based on Global Ant Biodiversity Informatics

  • Branstetter M. G. 2009. The ant genus Stenamma Westwood (Hymenoptera: Formicidae) redefined, with a description of a new genus Propodilobus. Zootaxa 2221:41-57.
  • DuBois M. B. 2000. Stenamma pingorum: replacement name for Stenamma orientale (Hymenoptera: Formicidae). Sociobiology 36: 40.
  • DuBois, M. B. "A revision of the ant genus Stenamma in the Palaeartic and Oriental regions." Sociobiology 32 (1998): 193-403.
  • Pfeiffer M., and D. Mezger. 2012. Biodiversity Assessment in Incomplete Inventories: Leaf Litter Ant Communities in Several Types of Bornean Rain Forest. PLoS ONE 7(7): e40729. doi:10.1371/journal.pone.0040907
  • Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58
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