Brachyponera pilidorsalis

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Brachyponera pilidorsalis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ponerinae
Tribe: Ponerini
Genus: Brachyponera
Species: B. pilidorsalis
Binomial name
Brachyponera pilidorsalis
Yamane, 2007

This species has been found in forest habitat nesting in rotting wood.


Keys including this Species


Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo, Indonesia, Malaysia (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




Males have yet to be collected.


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

  • pilidorsalis. Pachycondyla pilidorsalis Yamane, 2007: 655, figs. 7, 9-11 (w.q.) WEST MALAYSIA. Combination in Brachyponera: Schmidt & Shattuck, 2014: 80.

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



holotype in parentheses: HW 0.96-0.98 (0.96); HL 1.00-1.05 (1.00); SL 1.07-1.09 (1.08); EL 0.19-0.20 (0.19); MSL 0.11-0.13 (0.11). SL/HL 1.03-1.08 (1.08); Number of ommatidia along long axis of eye ca.12.

Very similar to Brachyponera nigrita and Brachyponera batak. Mesopleuron usually with a transverse groove. Posterior faces of propodeum and petiole constantly punctate. Dorsum of mesosoma usually with more than ten standing hairs, some of which are longer than width of antennal segment 2. Gastral tergites 1 and 2 each with more than ten long standing hairs.


Similar to B. batak in body size and distinctly punctate metapleuron (in B. nigrita metapleuron almost smooth). Specimens from Malay Pen. tend to be larger than those from Borneo (HW: 0.83-0.91 vs. 1.04-1.06 mm). Mesosoma dorsally and gastral tergites with numerous long standing hairs.

Type Material

Holotype: worker, Ulu Gombak (ca. 250 m alt.), Selangor Prov., Malaysia., 5 vii 1999, F. Ito (FI99-291). Paratypes: 10w, 2q, from the same colony as holotype. The holotype is deposited in the Entomological Collection at Forest Research Institute, Kuala Lumpur, Malaysia, and paratypes in SKY Collection, Kagoshima University, Natural History Museum (SKY Collection), London (The Natural History Museum), Museum of Comparative Zoology, Harvard University (Museum of Comparative Zoology) and Natural History Museum of Los Angeles County (Los Angeles County Museum of Natural History).


The name refers to the presence of numerous standing hairs on the dorsum of the bodies of the queen and worker.


  • Schmidt, C.A. & Shattuck, S.O. 2014. The higher classification of the ant subfamily Ponerinae (Hymenoptera: Formicidae), with a review of ponerine ecology and behavior. Zootaxa. 3817, 1–242 (doi:10.11646/zootaxa.3817.1.1)
  • Yamane, S. 2007. Pachycondyla nigrita and related species in southeast Asia (pp. 650-663). In Snelling, R.R., Fisher, B.L. and Ward, P.S. (eds). Advances in ant systematics: homage to E.O. Wilson – 50 years of contributions. Memoirs of the American Entomological Institute. 80:690 pp.