| Polyrhachis numeria|
Smith, F., 1861
Polyrhachis numeria appears to be a rare species and, in spite of examination of several collections gathered during the 1985 ‘Project Wallace’ by N.E. Stork and M.J.D. Brendell (BMNH), C. van Achterberg (RMNH) and subsequently by other collectors, namely B. Gobin (KULB), K. Ogata & K. Masaoka (ITAK), I. Ketterl (SMNS), J. Constant (IRSN), M.M. Bos (GUGG) and S. Yamane (KUKJ), the holotype is the only specimen recorded from Sulawesi. (Kohout, 2013)
- 1 Identification
- 2 Distribution
- 3 Biology
- 4 Castes
- 5 Nomenclature
- 6 References
This species is superficially very similar to Polyrhachis diana described by Wheeler (1909) from Mindanao. However, recent examination and direct comparison of the P. diana syntypes with the holotype of P. numeria indicate that they are distinct species. In P. numeria the eyes are weakly posteriorly truncate, the superior edge of antennal scapes has numerous, relatively short hairs and all dorsal body surfaces have rather abundant, moderately long, golden hairs. In contrast, the eyes in P. diana are normal, the antennal scapes lack hairs and the body pilosity is confined to the front of the head and venter and apex of the gaster. Also, the pronotal spines in P. numeria are somewhat shorter with broad and dorsally flat bases, while they are longer and more slender with distinctly dorsomedially flattened bases in P. diana.
Keys including this Species
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
Male and immature stages unknown.
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- numeria. Polyrhachis numeria Smith, F. 1861b: 42, pl. 1, fig. 25 (w.) INDONESIA (Sulawesi). Combination in P. (Myrma): Emery, 1925b: 201. Senior synonym of schizospina: Kohout, 1998: 527.
- schizospina. Polyrhachis (Johnia) schizospina Karavaiev, 1927e: 44, fig. 20 (q.) INDONESIA (Prinsen I.). Combination in P. (Aulacomyrma): Hung, 1967b: 402. Junior synonym of numeria: Kohout, 1998: 527.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Kohout (2013): Dimensions (holotype): TL c. 6.50; HL 1.65; HW 1.28; CI 77; SL 2.03; SI 158; PW 1.34; MTL 1.96.
Kohout (2013) - Dimensions (P. schizospina holotype): TL c. 7.96; HL 1.81; HW 1.40; CI 77; SL 2.12; SI 151; PW 1.52; MTL 2.18.
- Holotype, worker, Sulawesi, Indonesia, A.R. Wallace, Oxford University Museum of Natural History; (see Kohout, 2013).
The following notes on F. Smith type specimens have been provided by Barry Bolton (details): Polyrhachis numeria: Holotype worker in Oxford University Museum of Natural History. Labelled “Tond.” (= Tondano, Sulawesi) and with a Donisthorpe type-label.
Kohout (2013) - Polyrhachis (Johnia) schizospina Holotype queen. Indonesia, Prinsen Island in Sunda Strait (Karavaiev #2397) Institute of Zoology, Academia Sinica (Chinese Academy of Sciences) (examined).
- Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 201, Combination in P. (Myrma))
- Kohout, R. J. 1998. New synonyms and nomenclatural changes in the ant genus Polyrhachis Fr. Smith (Hymenoptera: Formicidae: Formicinae). Mem. Qld. Mus. 42: 505-531 (page 527, Senior synonym of schizospina)
- 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
- Kohout, R. J. 2013. A review of the Polyrhacis aculeata species-group of the subgenus Myrma Billberg (Hymenoptera: Formicidae), with keys and descriptions of new species. Australian Entomologist. 40:137-171.
- 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 42, pl. 1, fig. 25 worker described)