Polyrhachis hippomanes

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Polyrhachis hippomanes
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Polyrhachis
Subgenus: Myrmhopla
Species: P. hippomanes
Binomial name
Polyrhachis hippomanes
Smith, F., 1861

Polyrhachis hippomanes casent0103195 profile 1.jpg

Polyrhachis hippomanes casent0103195 dorsal 1.jpg

Specimen labels

Subspecies

A worker of this species was collected from a Pandanus fogging sample.

Identification

A member of the Polyrhachis mucronata species group.

Kohout (2008) - Two specimens of P. hippomanes from Dumoga-Bone (Sulawesi) are very similar to the holotype but differ slightly in the colour of their legs. In the holotype they are uniformly dark brown, apart from the trochanters and proximal ends of femora that are a shade lighter. In the modern specimens the coxae, trochanters and the proximal halves of the femora are distinctly light reddish-brown. The propodeal and petiolar spines are also more widely divergent in the modern specimens. However, in all other aspects both match the P. hippomanes holotype.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo, Indonesia (type locality), Malaysia, Sulawesi.
Oriental Region: India, Thailand.

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Check specimen data from AntWeb

Biology

Fungi

This species is a host for the fungus Ophiocordyceps unilaterialis (Shrestha et al., 2017).

Castes

Nomenclature

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

  • hippomanes. Polyrhachis hippomanes Smith, F. 1861b: 43, pl. 1, fig. 21 (w.) INDONESIA (Sulawesi). Wheeler, G.C. & Wheeler, J. 1970: 649 (l.). Combination in P. (Myrmhopla): Viehmeyer, 1916a: 166. Current subspecies: nominal plus boettcheri, ceylonensis. See also: Santschi, 1928g: 253.

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

Description

Type Material

Kohout (2008) - Holotype worker. Type locality: INDONESIA, SULAWESI, Tondano (A. R. Wallace), Oxford University Museum of Natural History (examined).

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

Holotype worker in Oxford University Museum of Natural History. Labelled “Tond.” (= Tondano, Sulawesi) and with a Donisthorpe type-label.

References

  • Kohout, R.J. 2008a. A review of the Polyrhachis ants of Sulawesi with keys and descriptions of new species (Hymenoptera: Formicidae: Formicinae). Memoirs of the Queensland Museum. 52:255-317. PDF
  • Santschi, F. 1928g. Quelques nids de fourmis du Muséum d'Histoire Naturelle de Paris. Ann. Sci. Nat. Zool. (10) 11: 247-259 (page 253, see also)
  • Shrestha B, Tanaka E, Hyun MW, Han JG, Kim CS, Jo JW, Han SK, Oh J, Sung JM, Sung GH. 2017. Mycosphere Essay 19. Cordyceps species parasitizing hymenopteran and hemipteran insects. Mycosphere 8(9): 1424–1442 (DOI 10.5943/mycosphere/8/9/8).
  • Smith, F. 1861b. Catalogue of hymenopterous insects collected by Mr. A. R. Wallace in the islands of Ceram, Celebes, Ternate, and Gilolo. [part]. J. Proc. Linn. Soc. Lond. Zool. 6: 36-48 (page 43, pl. 1, fig. 21 worker described)
  • Viehmeyer, H. 1916a [1915]. Ameisen von Singapore. Beobachtet und gesammelt von H. Overbeck. Arch. Naturgesch. (A) 81(8): 108-168 (page 166, Combination in P. (Myrmhopla))
  • Wheeler, G. C.; Wheeler, J. 1970b. Ant larvae of the subfamily Formicinae: second supplement. Ann. Entomol. Soc. Am. 63: 648-656 (page 649, larva described)