Probolomyrmex newguinensis

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Probolomyrmex newguinensis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Proceratiinae
Tribe: Probolomyrmecini
Genus: Probolomyrmex
Species: P. newguinensis
Binomial name
Probolomyrmex newguinensis
Shattuck, Gunawardene & Heterick, 2012

Probolomyrmex newguineensis ANIC32-066450 side 40-AntWiki.jpg

Probolomyrmex newguineensis ANIC32-066450 top 40-AntWiki.jpg

Specimen labels

Probolomyrmex newguinensis has been collected only once from a nest under a rock in a regenerated rainforest in Papua New Guinea.


Petiolar node relatively long and narrow (best viewed dorsally), the dorsal face (in side view) moderately convex anteriorly and weakly convex posteriorly; posterodorsal margin of petiole in dorsal view produced medially into a rearward directed rounded projection; subpetiolar process reduced to a shallow convexity.

Probolomyrmex newguinensis is morphologically similar to Probolomyrmex watanabei from Malaysia, particularly in the shape of the petiole. It differs from that species in having the petiole more barrel-shaped in dorsal view rather than trapezoidal, and in having the anterior face of the node (in side view) more strongly convex, giving the petiole a higher appearance. Additionally, the head is more elongate (CI < 61 vs. > 62) and the scape is shorter (SI < 114 vs. > 124).

Keys including this Species


Distribution based on Regional Taxon Lists

Indo-Australian Region: New Guinea.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • newguinensis. Probolomyrmex newguinensis Shattuck, Gunawardene & Heterick, 2012: 45, fig. 4 (w.m.) NEW GUINEA (Papua New Guinea).
    • Type-material: holotype worker, 8 paratype workers, 1 paratype male (head missing).
    • Type-locality: Papua New Guinea: Morobe Dist., Bulolo, 31.xii.1970 (B.B. Lowery); paratypes with same data.
    • Type-depository: ANIC.
    • Distribution: Papua New Guinea.

Type Material


Worker description. Body dark ferruginous brown. Head in full-face view with weakly convex sides and weakly and broadly concave posterior margin. Eyes absent. Antennae moderately long. Dorsal outline of mesosoma very weakly convex with a slight concavity at the metanotal groove; posterior margin of propodeal dorsum in dorsal view drawn posteriorly into a broad, rounded projection; posterior face of propodeum angled laterally and lacking a well-developed lamella. Petiole including subpetiolar process longer than high, its dorsal surface in profile relatively strongly convex anteriorly and rounding into a weakly convex to nearly flat surface posteriorly; subpetiolar process reduced to a weak convexity. Abdominal segment III (gastral segment I) in profile narrowed anteriorly, the ventral surface concave anteriorly and convex posteriorly.

Measurements. Worker (n=6)—CI 59–61; DPetW 0.21–0.24; HL 0.71–0.75; HTL 0.50–0.55; HW 0.43–0.46; LPetI 118–123; ML 0.97–1.03; PetH 0.30–0.31; PetNL 0.35–0.37; PronW 0.36–0.37; SI 110–114; SL 0.48–0.51


  • Shattuck, S.O., Gunawardene, N.G. & Heterick, B. 2012. A revision of the ant genus Probolomyrmex (Hymenoptera: Formicidae: Proceratiinae) in Australia and Melanesia. Zootaxa 3444: 40–50.

References based on Global Ant Biodiversity Informatics

  • Shattuck S. O., N. R. Gunawardene, and B. Heterick. 2012. A revision of the ant genus Probolomyrmex (Hymenoptera: Formicidae: Proceratiinae) in Australia and Melanesia. Zootaxa 3444: 40-50.