family

FORMICIDAE

subfamily

Myrmicinae

genus

Pyramica


ITIS

 

Pyramica hexamera

Hymenoptera On-Line

 

Pyramica hexamera

FORMIS

 

Pyramica hexamera



species

Pyramica hexamera


Japanese Name

Sedaka-uroko-ari

Original Reference

Brown, W. L., Jr. (1958) A new Japanese species of the dacetine ant genus Epitritus. Mushi 31: 69-72.

Synonym

Epitritus hexamerus Brown, 1958, Strumigenys hexamera (Brown): Baroni Urbani & De Andrade, 1994, Epitritus hexamerus: Bolton, 1995, Pyramica hexamera (Brown): Bolton, 1999,

Description

Total length of workers around 2 mm. Body color yellowish brown. Mandibles with 2 pairs of preapical teeth; apical dentition including a distinct dorsal spiniform tooth. Anterior margin of clypeus without peculiar hairs. Dorsal outline of mesosoma horizontal from pronotum to mesonotum; the latter overhanging the propodeum. Propodeal spine distinct. Spongiform appendages on posterolateral portion of propodeum relatively weakly developed.

Remarks

A rare species nesting in the soil of broadleaf forests.

Distribution

Honshu (Kanto District and southwards), Shikoku, Kyushu, Ogasawara Is, Nansei Is; Korean Peninsula, Taiwan.

References

  • A new Japanese species of the dacetine ant genus Epitritus. Mushi 31: 69-72.
  • Baroni Urbani, C. & De Andrade, M. L. 1994. First description of fossil Dacetini ants with a critical analysis of the current classification of the tribe (Amber Collection Stuttgart: Hymenoptera, Formicidae. VI: Dacetini). Stuttg. Beitr. Naturkd. Ser. B (Geol. Palaontol.), 198: 1-65.
  • Bolton, B. (1995). A new general catalogue of the ants of the world. 504 pp. Harvard University Press.
  • 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. Revised by Masashi Yoshimura.