Stictoponera grammodes

AntWiki: The Ants --- Online
Stictoponera grammodes
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Ectatomminae
Tribe: Ectatommini
Genus: Stictoponera
Species: S. grammodes
Binomial name
Stictoponera grammodes
(Brown, 1958)

Gnamptogenys grammodes casent0900561 p 1 high.jpg

Gnamptogenys grammodes casent0900561 d 1 high.jpg

Specimen Labels

A denizen of New Guinea rainforests. Some collections of this species have been made from rotten logs.


Modified from Lattke (2004) - Keys out close to Stictoponera biroi. Stictoponera grammodes may be closely related to S. biroi based on similarities in the occipital lamella and the shape of the subpetiolar process. The postpetiolar dorsum of S. grammodes differs from that of S. biroi in having a posterior strip of longitudinal carinulae and smoother cuticle anterad with punctae and no foveolae as in S. biroi. Stictoponera grammodes has a mostly smooth fourth abdominal tergite and is a smaller ant (HL > 1.2 mm;WL > 1.60 mm) than S. biroi.


Based on current collection records this ant is endemic to New Guinea.

Latitudinal Distribution Pattern

Latitudinal Range: 9.421° to -9.3°.

Tropical South

Distribution based on Regional Taxon Lists

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

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.




Gnamptogenys grammodes hef.jpgGnamptogenys grammodes hal.jpgGnamptogenys grammodes had.jpgGnamptogenys grammodes lbs.jpg
. Owned by Museum of Comparative Zoology.


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

  • grammodes. Gnamptogenys grammodes Brown, 1958g: 310, fig. 41 (w.) NEW GUINEA (Papua New Guinea).
    • Type-material: holotype worker, 9 paratype workers.
    • Type-locality: holotype Papua New Guinea: Bisianumu, nr Sogeri, ca 500 m., 15-20.iii.1955, no. 671 (E.O. Wilson); paratypes: 8 workers with same data, 1 worker with same data but no. 655.
    • Type-depository: MCZC.
    • Lattke, 2004: 118 (q.m.).
    • Combination in Stictoponera: Camacho, Franco, Branstetter, et al. 2022: 12.
    • Status as species: Bolton, 1995b: 209; Lattke, 2004: 116 (redescription); Camacho, Franco, Branstetter, et al. 2022: 12.
    • Distribution: Indonesia (Irian Jaya), Papua New Guinea.

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

Lattke (2004) - Head with convex lateral margins that curve gradually onto straight to slightly convex posterior margin in frontal view; occipital lobe lacking, occipital lamella forming blunt, triangular lobe. Postpetiolar dorsum with scattered foveolae over mostly smooth background sculpturing, posterior one-third up to one-half with longitudinal parallel carinulae.



Lattke 2004 Gnamptogenys fig 25-27

Lattke (2004) - Metrics (n = 5): HL 1.04-1.14, HW 0.90-0.96, ML 0.53-0.58, SL 0.91-1.02, ED 0.23-0.29, WL 1.41-1.53 mm. CI 0.83-0.87, SI 1.01-1.06, MI 0.55-0.62, OI 0.24-0.31. Head with convex lateral margins curving gradually onto straight to slightly convex posterior margin in frontal view, anterior margin of clypeal lamella with median convex lobe; frons longitudinally strigulose-foveolate; vertex mostly smooth; clypeus longitudinally strigulose. Scape mostly smooth with longitudinal strigulae; occipital lobe lacking, occipital lamella forming blunt, triangular lobe. Pronotum foveolate with smooth posteromedian area; mesometanotum longitudinally rugose-foveolate; katepisternum mostly rugulose-foveolate; metapleuron anterodorsally mostly smooth, posteroventrally longitudinally strigulose; propodeum foveolate with scattered longitudinal to oblique undulations and rugulae, propodeal dorsum foveolate with low transverse undulations and strigulae, propodeal dorsum curves gradually onto mostly smooth declivity.

Petiolar node with anterior margin forming gradual convexity in lateral view, higher posterad than anterad; dorsum mostly smooth with scattered lateral foveolae; ventral process projecting anterad as small, acute triangular lobe; postpetiole mostly smooth laterally with scattered foveolae, each foveola abruptly impressed anterad and gradually sloping posterad, posterior margin with longitudinal strigulae; pospetiolar dorsum with scattered foveolae over background sculpturing ranging from mostly smooth to transversely strigulose, posterior one-third up to one-half with longitudinal parallel carinulae; dorsum of abdominal segment 4 mostly smooth with scattered punctulae, posterolaterally with narrow band of longitudinal striae, sternum rugulose. Fore coxa transversely strigulose in lateral view; fore tarsus opposite strigil with single stout seta followed apically by row of slender setae; metacoxal tooth triangular and slender. Dorsum of thorax and abdominal segments 1-4 with scattered erect to subdecumbent hairs. Head, mesosoma, petiole, and gaster dark brown; mandibles, antennae, legs ferruginous brown.


Lattke (2004) - Metrics (n = 1): HL 1.25, HW 1.06, ML 0.65, SL 1.03, ED 0.36, WL 1.79 mm. CI 0.85, SI 0.97, MI 0.61, OI 0.34. Pronotum foveolate in lateral view, foveolae irregularly distributed among smooth areas; mesonotum with scattered foveolae and low longitudinal strigulae; mesoscutum longitudinally strigulose-punctulate; lateral propodeal face transversely rugulose-punctate; petiolar node with smooth median area and transverse strigulae on anterior and posterior margins in dorsal view. Postpetiole with transverse strigulae along anterior one-third, longitudinally strigulose along posterior two-thirds.


Lattke (2004) - Metrics (n = 1): HL 0.84, HW 0.77, ML 0.43, SL 0.28, ED 0.31, WL 1.48 mm. CI 0.92, SI 0.36, MI 0.56, OI 0.40. Frons irregularly areolate on low rugulae; median longitudinal ridge extends from posterior clypeal margin to between antennal insertions on elevated area; frontal triangle relatively wide and flat bottomed; clypeus strigulose; mandible longitudinally strigulose. Pronotum, mesopleuron mostly smooth with scattered shallow foveolae in lateral view; metapleuron, lateral propodeal face rugulose; mesonotum with large smooth areas and irregularly scattered shallow foveolae; scutellum strigulose. Fourth abdominal tergite with low, fine longitudinal undulations, slightly colliculate; fourth abdominal sternite strigulose.

Type Material

Lattke (2004) - Holotype worker: Papua New Guinea, Bisianumu, near Sogeri (Wilson) (Museum of Comparative Zoology) [Examined].


References based on Global Ant Biodiversity Informatics

  • Brown W. L., Jr. 1958. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118: 173-362.
  • CSIRO Collection
  • Janda M., G. D. Alpert, M. L. Borowiec, E. P. Economo, P. Klimes, E. Sarnat, and S. O. Shattuck. 2011. Cheklist of ants described and recorded from New Guinea and associated islands. Available on Accessed on 24th Feb. 2011.
  • Lattke J. E. 2004. A taxonomic revision and phylogenetic analysis of the ant genus Gnamptogenys Roger in Southeast Asia and Australasia (Hymenoptera: Formicidae: Ponerinae). University of California Publications in Entomology 122: 1-266.
  • Sagata, K., A.L. Mack, D.D. Wright and P.J. Lester. 2010. The influence of nest avaiability on the abundance and diversity of twig-dwelling ants in a Papua New Guinea forest. Insectes Sociaux 57:333-341
  • Snelling R. R. 2000. Ants of the Wapoga river area, Irian Jaya, Indonesia. In Mack, Andrew L. and Leeanne E. Alonso (eds.). 2000. A Biological Assessment of the Wapoga River Area of Northwestern Irian Jaya, Indonesia. RAP Bulletin of Biological Assessment 14, Conservation International, Washington, DC.
  • Wilson Edward O. 1959. Adaptive Shift and Dispersal in a Tropical Ant Fauna. Evolution 13(1): 122-144