Specimens have been collected from lowland rainforest leaf litter, a soil core and by fogging.
- 1 Identification
- 2 Distribution
- 3 Biology
- 4 Castes
- 5 Nomenclature
- 6 References
- 7 References based on Global Ant Biodiversity Informatics
A member of the Lophomymrex bedoti group.
Rigato (1994) - Lophomymrex longicornis is a very distinct species. The more constant diagnostic characters are the high SI, the very long propodeal spines (whose length is approached only by some Lophomyrmex bedoti specimens); the shape of the petiolar node in profile and, above all, the reduced pilosity on the alitrunk. The latter feature is unique if compared with all the other species in the genus.
Keys including this Species
Distribution based on Regional Taxon Lists
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.
- longicornis. Lophomyrmex longicornis Rigato, 1994a: 55, figs. 11, 12 (w.) BORNEO.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Holotype worker: TL 3.1, HL 0.80, HW 0.75, CI 94, SL 0.77, SI 103, PW 0.49, AL 0.98, SpL 0.39, HTL 0.74. TI 99.
Mesonotum in profile with a faint prominence and without a posterior step. Metanotal groove very shallow in profile. Propodeal spines in profile very long, straight and acute. reaching the level of the petiole-postpetiole articulation; they are also strongly divergent in dorsal view. Petiolar node in profile quite domed, with a moderately distinct angle between its anterior and dorsal faces. Postpetiole not massive, clearly shorter than the petiole.
Clypeus weakly reticulate, sublucid except for its posteriormost median portion which is smooth and shining. Frontal triangle irregularly sculptured and sublucid. Head shining, chiefly on the frons and vertex, very superficially reticulate. Genae with tiny longitudinal rugulae. Frontal lobes with faint longitudinal rugulae only. Anterior pronotal slope distinctly reticulate and sublucid. Pronotal dorsum between the lateral margins nearly glassy smooth, with only a trace of a median longitudinal carina. Pronotal sides shining, very weakly reticulate. Mesonotum, mesopleuron and propodeum, excluding its shining declivity, reticulate and somewhat subopaque or sublucid. Petiole and postpetiole with weak reticulation and sublucid, chiefly on the nodes. Gaster shining with only very superficial reticulation.
Pilosity as usual on the head, but reduced on the alitrunk. In frontal view the pronotum lacks any erect setae arising at the border with the anterior slope near the midline. In profile mesonotum with only tiny hairs or oblique pubescence marking the prominence and the posterior step.
Colour brownish yellow, head slightly darker.
Paratype workers: TL 3-3.5, HL 0.75-0.86, HW 0.68-0.81, CI 91-99, SL 0.74-0.84, SI 100-110, PW 0.46-0.55, AL 0.91-1.07, SpL 0.34-0.42, HTL 0.69-0.80, TI 92 -103 (32 measured).
As the holotype but varying as follows:
A faint posterior mesonotal step is often visible in profile. Propodeal spines not always strongly divergent in dorsal view and in profile they may be slightly curved upward, or even downward. A more evident median longitudinal carina may be present on the pronotal dorsum.
Colour varying from brownish yellow to light brown.
- Paratype, 3 workers, G. Mulu National Park, 4th Div., Sarawak, Malaysia, Bolton,B., ANIC32-015010, Australian National Insect Collection.
Holotype worker, East Malaysia: Sarawak, 4th Diy. G. Mulu Nat. Park, RGS Expn. Long Pala, lowland rainforest leaf litter, 6.x.1977 (B. Bolton) (The Natural History Museum).
Paratype workers, 19 specimens with the same data as the holotype; 6 specimens, E. Malaysia: Sarawak, 4th Diy. Sawai For. Res., 4.iii.1978, rainforest soil core (N. M. Collins); 3 specimens, E. Malaysia: Sabah, Tawau, 13.xii.1981 (J. Waage); 2 specimens. Sabah. Gn. Silam 250m 1983 (R. Leakey); 3 specimens. Brunei: Bukit Sulang nr Lamunin, BM 1982-388, 20.viiiIlO.ix.1982 T9/7. fogging (N. E. Stork) (BMNH; Museum of Comparative Zoology; Australian National Insect Collection; University of California, Davis).
- Rigato, F. 1994b. Revision of the myrmicine ant genus Lophomyrmex, with a review of its taxonomic position (Hymenoptera: Formicidae). Systematic Entomology. 19:47-60. (page 55, figs. 11, 12 worker described)
- Houadria, M., Menzel, F. 2021. Digging Deeper into the Ecology of Subterranean Ants: Diversity and Niche Partitioning across Two Continents. Diversity 13, 53 (doi:10.3390/d13020053).
References based on Global Ant Biodiversity Informatics
- Bharti H., and R. Kumar. 2012. Lophomyrmex terraceensis, a new ant species (Hymenoptera: Formicidae) in the bedoti group with a revised key. Journal of Asia-Pacific Entomology 15: 265-267.
- CSIRO Collection
- Eguchi K., and S. Yamane. 2003. Species diversity of ants (Hymenoptera, Formicidae) in a lowland rainforest, northwestern Borneo. New Entomol. 52(1,2): 49-59.
- Hashimoto Y., Y. Morimoto, E. S. Widodo, and M. Mohamed. 2006. Vertical distribution pattern of ants in a Bornean tropical rainforest (Hymenoptera: Formicidae). Sociobiology 47(3): 697- 710.
- Huong N. T. T., P. V. Sang, and B. T. Viet. 2015. A preliminary study on diversity of ants (Hymenoptera: Formicidae) at Hon Ba Nature Reserve. Environmental Scientific Conference 7: 614-620.
- Kishimoto-Yamata K., F. Hyodo, M. Matsuoka, Y. Hashimoto, M. Kon, T. Ochi, S. Yamane, R. Ishii, and T. Itioka. 2012. Effects of remnant primary forests on ant and dung beetle species diversity in a secondary forest in Sarawak, Malaysia. Journal of Insect Conservation DOI 10.1007/s10841-012-9544-6
- Mezger D., and M. Pfeiffer. 2011. Influence of the arrival of Anoplolepis gracilipes (Hymenoptera: Formicidae) on the composition of an ant community in a clearing in Gunung Mulu National Park, Sarawak, Malaysia. Asian Myrmecology 4: 89-98.
- Ohasi M., Y. Maekawa, Y. Hashimoto, Y. Takematsu, S. Hasin, and S. Yamane. 2017. CO2 emission from subterranean nests of ants and termites in a tropical rain forest in Sarawak, Malaysia. Applied Soil Ecology 117–118: 147–155.
- 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.0040822
- 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.0040948
- 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.0041016
- 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.0041045
- 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
- Rigato F. 1994. Revision of the myrmicine ant genus Lophomyrmex, with a review of its taxonomic position (Hymenoptera: Formicidae). Systematic Entomology 19: 47-60.
- Sheela S., and S. N. Ghosh. 2009. A new species of Lophomyrmex Emery (Hymenoptera: Formicidae) from India with a key to Indian species. Biosystematica 2(2): 17-20.
- Woodcock P., D. P. Edwards, R. J. Newton, C. Vun Khen, S. H. Bottrell, and K. C. Hamer. 2013. Impacts of Intensive Logging on the Trophic Organisation of Ant Communities in a Biodiversity Hotspot. PLoS ONE 8(4): e60756. doi:10.1371/journal.pone.0060756
- Woodcock P., D. P. Edwards, T. M. Fayle, R. J. Newton, C. Vun Khen, S. H. Bottrell, and K. C. Hamer. 2011. The conservation value of South East Asia's highly degraded forests: evidence from leaf-litter ants. Phil. Trans. R. Soc. B. 366: 3256-3264.
- Yamane S., T. Itino, and A.R. Nona. 1996. Ground ant fauna in a Bornean dipterocarp forest. Raffles Bulletin of Zoology 44(1): 253-262.
- Yusah K. M., T. M. Fayle, G. Harris, and W. A. Foster. 2012. Optimizing diversity assesment protocols for high canopy ants in tropical rain forest. Biotropica 44(1): 73-81.