Pheidole sexspinosa

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Pheidole sexspinosa
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. sexspinosa
Binomial name
Pheidole sexspinosa
Mayr, 1870

Pheidole sexspinosa casent0178466 profile 1.jpg

Pheidole sexspinosa casent0178466 dorsal 1.jpg

Specimen labels

Subspecies
Synonyms

In Singapore, this species has been found in mangrove back forest or swamp forest. Colonies were found nesting inside a decayed stem of Rhizophora sp. and cable roots of Excoecaria agallocha. The latter is a common mangrove tree species in Singapore, and secretes milky latex, which is toxic to animals including insects (Mendhulkar et al., 2017; Wang et al., 2018).

Identification

Keys including this Species

Distribution

Wang et al. (2018): Pheidole sexspinosa can be found throughout the Oceanian realm sensu Holt et al. (2013), including, New Guinea, and the Solomon, Palau, Caroline, Fiji, Samoa, Tuvalu, Austral, Society and Marquesas Islands (antmaps.org, accessed on 24 October 2018; Guénard et al., 2017). The only record in Fiji is for a single worker (AntWeb v7.53, CASENT0194651) – this might indicate an incipient or transient occurrence of the species (Sarnat & Economo, 2012). It has also been recorded once in New Zealand as an exotic human-introduced species (Ward et al., 2006). With its discovery from Singapore in this paper, the distribution range of this species can thus be expanded to include the Oriental realm as well.

Distribution based on Regional Taxon Lists

Indo-Australian Region: Cook Islands, French Polynesia, Micronesia (Federated States of), New Guinea, Niue, Palau, Samoa, Singapore, Solomon Islands, Tokelau, Tuvalu (type locality), Vanuatu, Wallis and Futuna Islands.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • sexspinosa. Pheidole sexspinosa Mayr, 1870b: 977 (s.w.) TUVALU. Combination in P. (Pheidolacanthinus): Mann, 1919: 307. Senior synonym of adamsoni: Wilson & Taylor, 1967: 52. Current subspecies: nominal plus biroi, fuscescens.
  • adamsoni. Pheidole (Pheidolacanthinus) sexspinosa subsp. adamsoni Wheeler, W.M. 1932c: 157 (s.w.q.m.) FRENCH POLYNESIA (Marquesas Is). Junior synonym of sexspinosa: Wilson & Taylor, 1967: 52.

Type Material

  • Pheidole sexspinosa – syntype, major, CASENT0919761, Tuvalu, Oceania, only part of head and thorax being intact.
  • Pheidole sexspinosa adamsoni – cotype, major, CASENT0249104, Marquesas Is.; cotype, major, LACMENT182082, Marquesas Is.
  • Pheidole sexspinosa biroi – syntype, major, CASENT0904306, New Guinea; syntype, minor, CASENT0904307, New Guinea.

Description

References

References based on Global Ant Biodiversity Informatics

  • Abbott K.L., S.N.J. Greaves, P.A. Ritchie, P.J. Lester. Behaviourally and genetically distinct populations of an invasive ant provide insights into invasion history and impacts on a tropical ant community. Biological Invasions 9: 453-463.
  • Abbott KL, Greaves SNJ, Ritchie PA, Lester PJ. 2007. Behaviorally and genetically distinct populations of an invasive ant provide insight into invasion history and impacts on a tropical ant community. Biological Invasions 9:453-463
  • Abbott, K.L., M. Sarty and P.J. Lester. 2006. The ants of Tokelau. New Zealand Journal of Zoology. 33:157-164.
  • Chapman, J. W., and Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327
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  • Dahl F. 1901. Das Leben der Ameisen im Bismarck-Archipel, nach eigenen Beobachtungen vergleichend dargestellt. Mitt. Zool. Mus. Berl. 2: 1-70.
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  • Field Museum Collection, Chicago, Illinois (C. Moreau)
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  • Greenslade P.J.M. and Greenslade Penelope. 1977. Some Effects of Vegetation Cover and Disturbance on a Tropical Ant Fauna. Insectes Sociaux 24(2): 163-182
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  • Sarty, M., Abbott, K. L. and Lester, P. J. 2006. Habitat complexity facilitates coexistence in a tropical ant community. Oecologia. 149:465-473
  • Savage, A.M., J.A. Rudgers and K.D. Whitney. 2009. Elevated Dominance of Extrafloral Nectary-Bearing Plants Is Associated with Increased Abundances of an Invasive Ant and Reduced Native Ant Richness. Diversity and Distributions 15(5): 751-761
  • Taylor R. W. 1976. The ants of Rennell and Bellona Islands. Natural History of Rennell Island, British Solomon Islands 7: 73-90.
  • Taylor, R. W. 1967. Entomological Survey of the Cook Islands and Niue. New Zealand Journal of Science. 10(4):1092-95.
  • Viehmeyer H. 1912. Ameisen aus Deutsch Neuguinea gesammelt von Dr. O. Schlaginhaufen. Nebst einem Verzeichnisse der papuanischen Arten. Abhandlungen und Berichte des Königlichen Zoologischen und Anthropologische-Ethnographischen Museums zu Dresden 14: 1-26.
  • Wang W. Y., A. Yamada, and K. Eguchi. 2018. First discovery of the mangrove ant Pheidole sexspinosa Mayr, 1870 (Formicidae: Myrmicinae) from the Oriental region, with redescriptions of the worker, queen and male. Raffles Bulletin of Zoology 66: 652-663.
  • Wetterer, James K. 2002. Ants of Tonga. Pacific Science. 56.2: 125-135.
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  • Wetterer, James K. and Vargo, Donald Vargo L. 2003. Ants (Hymenoptera: Formicidae) of Samoa. Pacific Science. 57(4):409-419.
  • Wheeler W.M. 1935. Check list of the ants of Oceania. Occasional Papers of the Bernice Pauahi Bishop Museum 11(11):1-56.
  • Wheeler, William Morton. 1932. Ants from the Society Islands. Bernice P. Bishop Museum Bulletin. 113:13-19.
  • Wheeler, William Morton. 1932. Ants of the Marquesas Islands. Bernice P. Bishop Museum-Bulletin. 98:155-63
  • Wheeler, William Morton. 1936. Ants from the Society, Austral, Tuamotu, and Mangareva Islands. Bernice P. Bishop Museum Occasional Papers 7.18.
  • Wheeler, William Morton.1935.Checklist of the Ants of Oceania.Occasional Papers 11(11): 3-56
  • Wilson E. O.; Taylor, R. W. 1967. The ants of Polynesia (Hymenoptera: Formicidae). Pacific Insects Monograph 14:1-109.
  • Wilson E.O., and G.L. Hunt. 1967. Ant fauna of Futuna and Wallis islands, stepping stones to Polynesia. Pacific Insects 9(4): 563-584.
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  • Wilson EO, Hunt GL. 1967. Ant fauna of Futuna and Wallis Islands, stepping stones to Polynesia. Pacific Insects 9.4: 563-584.
  • Wilson EO, Taylor RW. 1967. The ants of Polynesia. Pacific Insects Monograph 14:1-109.
  • Wilson, Edward O. and George L. Hunt. 1967. Ant Fauna of Futuna and Wallis Islands, Stepping Stones To Polynesia. Pacific Insects. 9(4):563-584.
  • Wilson, Edward O. and Hunt, George L. Jr. 1967. Ant Fauna of Futuna and Wallis Islands, Stepping Stones to Polynesia. Pacific Insects. 9(4):563-584