|Based on Blaimer et al., 2016. Note only selected Acropyga species are included, and undescribed species are excluded.|
Johnson et al. (2001) recorded this species as trophophoretic. It has been associated with the mealybugs Eumyrmoccus kolobangarae and E. kusiacus.
LaPolla (2004) - Worker: 8-9 segmented antennae; mandible with 4 teeth, basal tooth separated by a short diastema. Queen: as in worker with modifications expected for caste. Male: unknown. Compare with Acropyga sauteri.
The worker of this species is easily separated from Acropyga sauteri by the presence of 8-9 segmented antennae and the basal teeth offset by a diastema separating them from the other teeth. The large size of the species and four teeth on the mandible, coupled with the fact it possesses darker queens, has led to its provisional placement within the myops species-group. A. lauta has a similar mesosomal structure to Acropyga kinomurai and A. sauteri. Like A. kinomurai and A. sauteri, A. lauta also displays reduced mandibular dentition. Based on the dense covering of hairs on the mandibles, this species may be most closely related to A. kinomurai. However, A. lauta torulae are closely set, unlike other members of the myops species-group. Therefore, the exact placement of A. lauta awaits discovery of worker-associated males.
Keys including this Species
Latitudinal Distribution Pattern
Latitudinal Range: -5.122° to -18.0666°.
- Source: AntMaps
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
|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.|
|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.|
Images from AntWeb
|Not Provided. Worker. Specimen code casent0171066. Photographer Eli M. Sarnat, uploaded by California Academy of Sciences.||Owned by EMSC.|
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- lauta. Acropyga (Rhizomyrma) lauta Mann, 1919: 365 (w.q.) SOLOMON IS (San Cristoval I., Malaita I.).
- Status as species: Emery, 1925b: 30; Wheeler, W.M. 1935g: 38; Bolton, 1995b: 57; LaPolla, 2004a: 65 (redescription); Sarnat & Economo, 2012: 42; Sarnat, et al. 2013: 69.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
LaPolla (2004) - (n=8): TL: 1.94-2.34; HW: 0.51-0.579; HL: 0.49-0.556; SL: 0.356-0.427; ML: 0.541-0.647; GL: 0.89-1.14; CI: 99.03-108.17; SI: 68.07-78.24.
Head: yellow; head covered in thick layer of appressed hairs; head longer than broad; posterior margin entire; 8-9 segmented, incrassate antennae; scape fails to reach posterior margin by about length of pedicel; clypeus narrow, with many suberect to erect hairs on surface; clypeus convex medially; mandible typically with 4 distinct teeth, the 4th tooth from apical separated by a short diastema; smaller 5th tooth can sometimes form in the diastema region; inner mandibular margin nearly parallel to anterior clypea1 margin; dorsal surface of mandible very hairy (< 20 hairs). Mesosoma: yellow; in lateral view pronotum with short anterior shelf before rising steeply toward mesonotum; mesonotum covered in a dense layer of short suberect to erect hairs; longer hairs occasionally found posteriorly; mesonotum at same height as pronotum and propodeum; mesonotum dorsum flat, covered in a dense layer of short suberect to erect hairs; metanotal area distinctly pinched in laterally from mesonotum and propodeum giving it an "hour glass" appearance in dorsal view; propodeum dorsum flat, covered in a dense layer of short suberect to erect hairs; declivity steep. Gaster: petiole thick and erect, narrowing slightly toward apex, reaching height of bottom portion of propodeal spiracle; gaster yellow; covered in a dense layer of appressed hairs with scattered erect hairs throughout.
LaPolla (2004) - (n=2): TL: 2.82-3.36; HW: 0.547-0.56; HL: 0.528-0.54; SL: 0.422-0.44; ML: 0.946-0.988; GL: 1.31-1.87; CI: 101.3; SI: 75.36. As in worker with modifications expected for caste, and with the following differences: darker than worker (brownish-yellow in color).
LaPolla (2004) - Acropyga (Rhizomyrma) lauta Mann, 1919: 365 (w.q.). 7 syntype workers, 1 syntype queen, SOLOMON ISLANDS: Auki, Malaita (W.M. Mann) (Museum of Comparative Zoology) [examined]; 12 syntype workers, 4 syntype queens, SOLOMON ISLANDS: Pamua (W.M. Mann) (National Museum of Natural History) [examined]. The designated lectotype is a worker labeled JSL TYPE # 127 and is deposited at MCZC.
- LaPolla, J.S. 2004a. Acropyga of the world. Contributions of the American Entomological Institute. 33(3):1-130. (page 65, fig. 27C, worker, queen described)
- Mann, W. M. 1919. The ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology 63: 273-391 (page 365, worker, queen described)
References based on Global Ant Biodiversity Informatics
- Blaimer B. B., J. S. LaPolla, M. G. Branstetter, M. W. Lloyd, and S. G. Brady. 2016. Phylogenomics, biogeography and diversification of obligate mealybug-tending ants in the genus Acropyga. Molecular Phylogenetics and Evolution 102: 20-29.
- CSIRO Collection
- Janda M., P. Matos-Maravi, M. Borovanska, J. Zima Jr., E. Youngerman, and N. E. Pierce. 2016. Phylogen y and population genetic structure of the ant genus Acropy ga (Hymenoptera : Formicidae) in Papua New Guinea. Invertebrate Systematics 30: 28-40.
- LaPolla J.S. 2004. Acropyga (Hymenoptera: Formicidae) of the world. Contributions of the American Entomological Institute 33(3): 1-130.
- Mann W. M. 1919. The ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology 63:273-391.
- Mann William. 1916. The Ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology at Harvard College 63(7): 273-391
- Mann, W.M. 1919. The ants of the British Solomon Islands. Bulletin of the Museum of Comparative Zoology of Harvard College 63: 273-391
- Sarnat Eli M. 2009. The Ants [Hymenoptera: Formicdiae] of Fiji: Systematics, Biogeography and Conservation of an Island Arc Fauna. 80-252
- Wheeler W.M. 1935. Check list of the ants of Oceania. Occasional Papers of the Bernice Pauahi Bishop Museum 11(11):1-56.
- Wheeler, William Morton.1935.Checklist of the Ants of Oceania.Occasional Papers 11(11): 3-56