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Stictoponera palamala
| Stictoponera palamala | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Ectatomminae |
| Tribe: | Ectatommini |
| Genus: | Stictoponera |
| Species: | S. palamala |
| Binomial name | |
| Stictoponera palamala (Lattke, 2004)
| |
This species is only known from types. These specimens were collected from a mixed dipterocarp forest.
Identification
Lattke (2004) - The shape of the mandibles, the smooth mandibular dorsum, and the dorsal bulge of the fourth abdominal tergite make this species easy to determine.
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 4.95° to 4.95°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo (type locality), Indonesia, Malaysia.
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. |
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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. |
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Biology
Castes
Queen and male are unknown.
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- palamala. Gnamptogenys palamala Lattke, 2004: 141, fig. 32 (w.) BORNEO (East Malaysia: Sarawak).
- Type-material: holotype worker, 1 paratype worker.
- Type-locality: holotype Malaysia: Sarawak, 4th Division, Gunong Mulu Nat. Park, v.-viii.1978, BM1978-49 (P.M. Hammond & J.E. Marshall); paratype with same data.
- Type-depository: BMNH.
- Combination in Stictoponera: Camacho, Franco, Branstetter, et al. 2022: 12.
- Status as species: Pfeiffer, et al. 2011: 35; Camacho, Franco, Branstetter, et al. 2022: 12.
- Distribution: Malaysia (Sarawak).
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Mandibular dorsum mostly smooth with scattered punctulae, masticatory margin separated from internal margin by sharp angle, the masticatory and internal margins diverging from each other. Tergite of abdominal segment 4 with basal half longitudinally strigose and bulging in lateral view, apical half transversely strigose and straight in lateral view.
Description
Worker
Metrics. [Holotype] Paratype (n = 1): HL [1.51] 1.78, HW [1.29] 1.32, ML [0.77] 0.80, SL [1.35] 1.45, ED [0.25] 0.28, WL [2.06] 2.24 mm. CI [0.85] 0.74, SI [1.05] 1.10, MI [0.51] 0.61, OI [0.19] 0.21. Head with subparallel lateral margins in frontal view, posterior margin medially straight with lateral lobes slightly projecting posterad; anterior margin of clypeus forms obtuse angle with median blunt point, lamella not well developed; cephalic vertex with carina that borders posterior margin, joining both occipital lobes; frons densely foveolate, almost areolate, with fine longitudinal sulcus extending posterad of frontal triangle and ending at eye height; clypeus posteromedially foveolate, anteriorly longitudinally striate; mandibular dorsum mostly smooth with scattered punctulae, masticatory margin with low denticles and separated from internal margin by sharp angle, the two margins diverging from each other; scape longitudinally strigulose and punctate; occipital lamella angular at both ends.
Anteroventral margins of pronotum form sharp point in lateral view; anteroventral margin of anepisterum with smooth and prominent carinae; katepisternum wedge shaped; mesosoma densely foveolate; promesonotal suture brief; mesosoma with evenly convex dorsal margin curving posterad to peg like propodeal denticle in lateral view, then briefly concave before becoming convex again. Petiolar node evenly convex, areolate in lateral view; ventral process forming narrow, anteriorly placed lobe; postpetiolar dorsum with dense round foveolae anteriorly, posteriorly becoming less dense and oval; sternum medially smooth; tergite of abdominal segment 4 with basal half longitudinally strigose and bulging in lateral view, apical half transversely strigose and straight in lateral view. Fore coxae with low to prominent transverse strigulae in lateral view; fore tarsus opposite of strigil with row of stout setae. Head, mesosoma, petiole, and gaster reddish to dark brown; mandibles, antennae, legs brown.
Type Material
Holotype worker. Malaysia, Sarawak, Fourth Division, Gunung Mulu Natl. Pk., P.E. Hammond & J.E. Marshall, v-viii-1978, BM 1978-49. Deposited in The Natural History Museum. Paratype. One worker on the same pin as holotype, deposited in BMNH.
Etymology
The species name is a compound epithet derived from the feminine Latin nouns for “shovel,” pala, and “jawbone,” mala. It alludes to the shovel-like mandibles of this species.
References
- Camacho, G.P., Franco, W., Branstetter, M.G., Pie, M.R., Longino, J.T., Schultz, T.R., Feitosa, R.M. 2022. UCE phylogenomics resolves major relationships among Ectaheteromorph ants (Hymenoptera: Formicidae: Ectatomminae, Heteroponerinae): A new classification for the subfamilies and the description of a new genus. Insect Systematics and Diversity 6(1): 5; 1–20 (doi:10.1093/isd/ixab026).
- 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 (page 141, fig. 32 worker described)
References based on Global Ant Biodiversity Informatics
- 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.
- Pfeiffer M., D. Mezger, and J. Dyckmans. 2013. Trophic ecology of tropical leaf litter ants (Hymenoptera: Formicidae) - a stable isotope study in four types of Bornean rain forest. Myrmecological News 19: 31-41.
- Pfeiffer M., and D. Mezger. 2012. Biodiversity Assessment in Incomplete Inventories: Leaf Litter Ant Communities in Several Types of Bornean Rain Forest. PLoS ONE 7(7): e40729. doi:10.1371/journal.pone.0040737
- Pfeiffer M., and D. Mezger. 2012. Biodiversity Assessment in Incomplete Inventories: Leaf Litter Ant Communities in Several Types of Bornean Rain Forest. PLoS ONE 7(7): e40729. doi:10.1371/journal.pone.0040848
- Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58