family

FORMICIDAE

subfamily

Myrmicinae

genus

Pyramica


ITIS

 

Pyramica japonica

Hymenoptera On-Line

 

Pyramica japonica

FORMIS

 

Pyramica japonica



species

Pyramica japonica


Japanese Name

Yamato-uroko-ari

Original Reference

Ito, T. (1914) Formicidarum Japonicum species novae vel minus cognitae. Annales de la Société Entomologique de Belgique 58: 40-45.

Synonym

Strumigenys japonica Ito, 1914, Strumigenys (Cephaloxys) japonica Ito: Emery, 1924, Smithistruma (Smithistruma) japonica (Ito): Brown, 1948, Weberistruma japonica (Ito): Brown, 1953, Smithistruma japonica (Ito): Bolton, 1983, Pyramica japonica (Ito): Bolton, 1999,

Description

Total length of workers around 2 mm. Body color yellowish to reddish brown. Head somewhat slender in general shape, its posterior corners rather angulate. Clypeus almost as long as broad, not fringed with spatulate hairs; anterior margin projecting in the middle. Ventral margin of antennal scrobes reaching as far as eyes. Eyes large, maximum diameter greater than the length of the apical antennal segment. Antennal scapes flattened, without angulate leading edges. Promesonotal area not raised. Propodeal spines distinct. Dorsal surfaces of head and pronotum without standing hairs, but with dense depressed, scale-like hairs.

Remarks

P. japonica has been confused in the past with both Pyramica benten and P. mazu. It is in fact a rare species. In addition to the type-locality (Nagato, Yamaguchi Prefecture), confirmed distribution records are from the Kansai and Chugoku districts of Honshu, and Okinawa Island.

Distribution

Honshu (Kyoto [Akio Taki leg.], Miyajima, Hiroshima Pref. [Morikawa leg.], Nagato, Yamaguchi Pref.), Okinawa I.; Korea.

References

  • Formicidarum Japonicum species novae vel minus cognitae. Annales de la Société Entomologique de Belgique 58: 40-45.
  • Emery, C. 1924 ("1922"). Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum, 174C: 207-397.
  • Brown, W. L., Jr. (1948). A preliminary generic revision of the higher Dacetini (Hymenoptera: Formicidae). Trans. Am. Ent. Soc., 74, 101-129.
  • Brown, W. L., Jr. 1953. Revisionary studies in the ant tribe Dacetini. Am. Midl. Nat., 50: 1-137.
  • Bolton, B. (1983). The Afrotropical dacetine ants (Formicidae). Bull. Br. Mus. Nat. Hist. (Ent.), 46, 267-416.
  • Bolton, B. 1999. Ant genera of the tribe Dacetonini (Hymenoptera: Formicidae). J. Nat. Hist., 33: 1639-1689.

Editor

Original text by Kazuo Ogata and Keiichi Onoyama. English translation by Kazuo Ogata, edited by Robert W. Taylor.