Gnamptogenys coxalis

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Gnamptogenys coxalis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ectatomminae
Tribe: Ectatommini
Genus: Gnamptogenys
Species: G. coxalis
Binomial name
Gnamptogenys coxalis
(Roger, 1860)

Gnamptogenys coxalis casent0281842 p 1 high.jpg

Gnamptogenys coxalis casent0281842 d 1 high.jpg

Specimen Labels

Synonyms

Identification

Lattke (2004) - Clypeal lamella projecting anterad as broad triangular lobe; occipital lobes poorly developed. Pronotal dorsum punctate, with rough transverse strigae that arch anterad, becoming longitudinal on posterior pronotum and mesonotum; propodeum unarmed and transversely strigose.

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo, Brunei Darussalam, Indonesia, Malaysia, Philippines, Singapore.
Oriental Region: India, Myanmar (type locality), Nicobar Island, Sri Lanka (type locality), Thailand, Vietnam.
Palaearctic Region: China.

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Biology

Not much is known about the the biology of Gnamptogenys coxalis. We can speculate that the biology of this species is similar to other species of the genus. Gnamptogenys are predatory ponerine ants that inhabit tropical and subtropical mesic forests. Nesting is typically at ground level in rotten wood or leaf litter. Some exceptions include species that are arboreal, a dry forest species and species that nests in sandy savannahs. Colony size tends to be, at most, in the hundreds. Queens are the reproductives in most species. Worker reproduction is known from a few species in Southeastern Asia. Generalist predation is the primary foraging/dietary strategy. Specialization on specific groups (millipedes, beetles, other ants) has developed in a few species.

Castes

Lattke 2004 Gnamptogenys fig 45-49

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • coxalis. Ponera coxalis Roger, 1860: 308
    • Replacement name for Ponera rugosa Smith, F. 1857a: 66. [Junior primary homonym of Ponera rugosa Le Guillou, 1842: 318.]
    • Combination in Ectatomma (Rhytidoponera): Mayr, 1862: 732.
    • Combination in Ectatomma: Emery, 1887b: 444.
    • Combination in E. (Stictoponera): Mayr, 1887: 539.
    • Combination in Stictoponera: Emery, 1900d: 662.
    • Combination in Gnamptogenys: Brown, 1958g: 228.
    • Status as species: Mayr, 1862: 732; Mayr, 1863: 410; Roger, 1863b: 17; Mayr, 1867a: 89 (redescription); Mayr, 1872: 150; Emery, 1887b: 444; Dalla Torre, 1893: 24; Bingham, 1903: 84; Wheeler, W.M. 1919e: 51; Karavaiev, 1925a: 79; Wheeler, W.M. & Chapman, 1925: 59; Brown, 1954h: 9; Brown, 1958g: 228, 300; Bolton, 1995b: 209; Lattke, 2004: 103 (redescription); Lattke & Delsinne, 2016: 144.
    • Senior synonym of costatum, parva, pinealis, simalurensis, unicolor, wallacei: Lattke & Delsinne, 2016: 144.
  • costatum. Ectatomma (Stictoponera) costatum Emery, 1889b: 494 (w.) MYANMAR.
    • Wheeler, G.C. & Wheeler, J. 1976a: 44 (l.); Lattke, 2004: 100 (q.m.).
    • Combination in Stictoponera: Emery, 1900d: 662.
    • Combination in Gnamptogenys: Brown, 1958g: 227.
    • Status as species: Dalla Torre, 1893: 24; Wheeler, W.M. 1929g: 31; Brown, 1954h: 7; Brown, 1958g: 227; Radchenko, 1993a: 78; Bolton, 1995b: 208; Lattke, 2004: 97 (redescription).
    • Junior synonym of coxalis: Lattke & Delsinne, 2016: 144.
  • rugosa. Ponera rugosa Smith, F. 1857a: 66 (q.) BORNEO.
    • [Junior primary homonym of Ponera rugosa Le Guillou, 1842: 318.]
    • Combination in Stictoponera: Emery, 1911d: 48.
    • Status as species: Wheeler, W.M. 1919e: 51.
    • Replacement name: Ponera coxalis Roger, 1860: 308.
  • pinealis. Stictoponera costata var. pinealis Wheeler, W.M. 1929g: 31 (q.) WEST MALAYSIA.
    • Junior synonym of costata: Brown, 1954h: 7.
    • Junior synonym of coxalis: Lattke & Delsinne, 2016: 144.
  • simalurensis. Stictoponera costata st. simalurensis Forel, 1915a: 23 (w.) INDONESIA (Sumatra).
    • Junior synonym of costata: Brown, 1954h: 7.
    • Junior synonym of coxalis: Lattke & Delsinne, 2016: 144.
  • unicolor. Stictoponera costata var. unicolor Forel, 1901f: 335 (w.) BORNEO.
    • Subspecies of costata: Wheeler, W.M. 1919e: 51.
    • Junior synonym of costata: Brown, 1954h: 7.
    • Junior synonym of coxalis: Lattke & Delsinne, 2016: 144.
  • parva. Stictoponera rugosa r. parva Forel, 1913k: 6 (w.) INDONESIA (Sumatra).
    • Junior synonym of costata: Brown, 1954h: 7.
    • Junior synonym of coxalis: Lattke & Delsinne, 2016: 144.
  • wallacei. Stictoponera wallacei Donisthorpe, 1932c: 447.
    • Unnecessary (second) replacement name for Ponera rugosa Smith, F. 1857a: 66; hence automatic junior synonym of coxalis Roger, 1860: 308 (first replacement name).
    • Junior synonym of costata: Brown, 1954h: 7.
    • Junior synonym of coxalis: Lattke & Delsinne, 2016: 144.

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

Description

Type Material

Lattke (2004) - Lectotype worker: Ceylon [Sri Lanka] (Nietner) (Berlin Museum für Naturkunde der Humboldt-Universität) [Not examined]. Designated by Brown, 1954b:9.

Lattke (2004) - Holotype worker by monotypy: Burma [Myanmar], Tenasserim (Fea) (MCSN) [Examined].

Stictoponera costata var. unicolor Forel, 1901b:335. Syntype workers, queen: Borneo (MHNG) [Not examined]. Synonymy by Brown, 1954b:7.

Stictoponera rugosa var. parva Forel, 1913:6. Holotype worker by monotypy: Sumatra (MHNG) [Not examined]. Synonymy by Brown, 1954b:7.

Stictoponera costata var. simalurensis Forel, 1915:23. Holotype worker by monotypy: Sumatra (MHNG) [Not examined]. Synonymy by Brown, 1954b:7.

Stictoponera costata var. pinealis Wheeler, W.M. 1929:31. Holotype queen by monotypy: Malaysia, Penang (Silvestri) (MCZC) [Examined]. Synonymy by Brown, 1954b:7.

Stictoponera wallacei Donisthorpe, 1932:447. Replacement name for Ponera rugosa Smith, F. 1857:66. Synonymy by Brown, 1954b:7.


The following notes on F. Smith type specimens have been provided by Barry Bolton (details):

Ponera rugosa

Holotype dealate queen in Oxford University Museum of Natural History. Labelled “SAR. 20,” and “rugosa Sm.” There is also a Donisthorpe type-label and one that states “Stictoponera wallacei Donisthorpe,” his replacement name for the preoccupied P. rugosa F. Smith.

There is a specimen in The Natural History Museum that is incorrectly labelled as type of rugosa; it is actually a worker of Gnamptogenys menadensis (Mayr).

References

  • Brown, W. L., Jr. 1954h. A review of the coxalis group of the ant genus Stictoponera Mayr. Breviora 34: 1-10 (page 9, see also)
  • Brown, W. L., Jr. 1958g. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bull. Mus. Comp. Zool. 118: 173-362 (page 227, Combination in Gnamptogenys)
  • Emery, C. 1900c. Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei. [part]. Ann. Mus. Civ. Stor. Nat. 40[=(2(20): 661-688 (page 662, Combination in Stictoponera)
  • Lattke, J. E. 2004. A Taxonomic Revision and Phylogenetic Analysis of the Ant Genus Gnamptogenys Roger in Southeast Asia and Australasia (Hymenoptera: Formicidae: Ponerinae). University of California Publications in Entomology 122: 1-266 (page 103, fig. 20 worker described)
  • Lattke, J.E. & Delsinne, T. 2016. Revisionary and natural history notes on some species of the genus Gnamptogenys Roger, 1863. Myrmecological News 22: 141-147.
  • Mayr, G. 1862. Myrmecologische Studien. Verh. K-K. Zool.-Bot. Ges. Wien 12: 649-776 (page 732, Combination in Ectatomma (Rhytidoponera))
  • Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 37: 511-632 (page 539, Combination in E. (Stictoponera))
  • Roger, J. 1860. Die Ponera-artigen Ameisen. Berl. Entomol. Z. 4: 278-312 (page 308, worker described)