Polyrhachis simpla

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Polyrhachis simpla
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Camponotini
Genus: Polyrhachis
Subgenus: Myrma
Species: P. simpla
Binomial name
Polyrhachis simpla
Santschi, 1928

Polyrhachis simpla casent0912117 p 1 high.jpg

Polyrhachis simpla casent0912117 d 1 high.jpg

Specimen Labels



A member of the Polyrhachis continua species group in the subgenus Myrma

Polyrhachis simpla is very similar to Polyrhachis spinifera and Polyrhachis sericeopubescens, however, it differs from both in having the lateral margins of the pronotal dorsum virtually flat, while they are distinctly upturned in the other species. Also, the lateral margins of mesonotum distinctly converge posteriorly in P. simpla, while they are subparallel in both P. spinifera and P. sericeopubescens. (Kohout 2013)

Keys including this Species


Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (type locality), New Guinea.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb



Kohout (2013) reported "Sexuals apparently present in Karavaiev collection in Kiev, Ukraine (Institute of Zoology, Academia Sinica (Chinese Academy of Sciences))."


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

  • simplex. Polyrhachis (Myrma) conops subsp. simplex Karavaiev, 1927e: 45 (w.q.m.) INDONESIA (Aru I.). [Junior primary homonym of simplex Mayr, above.] Replacement name: simpla Santschi, 1928h: 139.
  • simpla. Polyrhachis (Myrma) conops st. simpla Santschi, 1928h: 139. Replacement name for simplex Karavaiev, 1927e: 45. [Junior primary homonym of simplex Mayr, 1862: 682.] Raised to species: Kohout, 1998: 520.

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



Kohout (2013) - Dimensions of conops simpla syntypes: TL c. 9.78-11.54; HL 2.59-2.77; HW 1.87-2.02; CI 71- 73; SL 3.63-3.88; SI 192-196; PW 1.96-2.17; MTL 3.83-4.03 (4 measured).

Type Material

Syntype workers, queens, males. Type locality: Indonesia, Aru Is: Wammar (V. Karavaiev), Institute of Zoology, Academia Sinica (Chinese Academy of Sciences), Queensland Museum (examined). Junior primary homonym of P. simplex Mayr, 1862: 682.


  • Karavaiev, V. 1927f. Ameisen aus dem Indo-Australischen Gebiet. III. Zb. Prats Zool. Muz. 3:3-52 [= Tr. Ukr. Akad. Nauk Fiz.-Mat. Vidd. 7:3-52]. (page 45, Junior primary homonym of simplex)
  • 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 520, Raised to species)
  • Kohout, R.J. 2013. A review of the Polyrhachis continua species-group of the subgenus Myrma Billberg (Hymenoptera: Formicidae: Formicinae) with keys and descriptions of new species. Australian Entomologist 40(1), 13-46.
  • Mayr, G. 1862. Myrmecologische Studien. Verh. K-K. Zool.-Bot. Ges. Wien 12: 649-776 (page 682, pirmary homonym)
  • Santschi, F. 1928h. Fourmis de Sumatra, récoltées par Mr. J. B. Corporaal. Tijdschr. Entomol. 71: 119-140 (page 139, Replacement name for simplex)