Acropyga

{{short description|Genus of ants}}

{{Italic title}}

{{Automatic_taxobox

| fossil_range = {{fossilrange|Burdigalian|0| Burdigalian to Recent}}

| image = Acropyga.berwicki.-.wheeler.svg

| image_caption = A. berwicki worker

| taxon = Acropyga

| authority = Roger, 1862 {{ITIS |id=573948 |taxon=Acropyga Roger, 1862 |accessdate=October 31, 2013}}

| type_species = Acropyga acutiventris

| type_species_authority = Roger, 186

| diversity_link = #Species

| diversity = 42 species

| diversity_ref = {{AntCat|429152|Acropyga|2014|accessdate=17 July 2014}}

| synonyms =

Atopodon Forel, 1912

Malacomyrma Emery, 1922

Rhizomyrma Forel, 1893

}}

Acropyga is a genus of small formicine ants. Some species can be indirect pests. A. acutiventris, which is found from India to Australia, tends subterranean, root-feeding mealybugs of the species Xenococcus annandalei. Living, gravid females are carried in the jaws of A. acutiventris queens during their nuptial flight, to establish the symbiotic association in founding colonies. Other Acropyga species have relationships with different species of mealybugs, and it could be a trait common to the whole genus.{{cite journal |author =Robert W. Taylor |year=1992 |title=Nomenclature and distribution of some Australian and New Guinean ants of the subfamily Formicinae (Hymenoptera: Formicidae) |journal=Journal of the Australian Entomological Society |volume=31 |issue=1 |pages=57–69 |doi=10.1111/j.1440-6055.1992.tb00458.x|url=https://zenodo.org/record/24845 |doi-access=free }}

Description

Acropyga are smaller than {{convert|3.5|mm}}, with a compact, stocky body. They have antennae with 10 or 11 segments (including the scape), short palps and reduced eyes with four to 30 individual ommatidia. In some species, the eyes are completely absent.{{cite web |work=Australian Ants Online |url=http://www.ento.csiro.au/science/ants/formicinae/acropyga/acropyga.htm |archive-url=https://web.archive.org/web/20080721160050/http://www.ento.csiro.au/science/ants/formicinae/acropyga/acropyga.htm |archive-date=July 21, 2008 |url-status=dead |title=Genus Acropyga |publisher=CSIRO |author1=S. O. Shattuck |author2=N. J. Barnet |access-date=October 31, 2013}}

Distribution

Acropyga is found in the Americas, southern Africa, India to Southeast Asia and Australia. A. paleartica is known only from Greece. Fossil specimens of Acropyga have been recovered from the Burdigalian stage. Dominican amber deposits and several individuals are preserved carrying Electromyrmococcus mealybugs.{{cite journal |author1=Christine Johnson |author2=Donat Agosti |author3=Jacques H. Delabie |author4=Klaus Dumpert |author5=D. J. Williams |author6=Michael von Tschirnhaus |author7=Ulrich Maschwitz |year=2001 |title=Acropyga and Azteca ants (Hymenoptera: Formicidae) with scale insects (Sternorrhyncha: Coccoidea): 20 million years of intimate symbiosis |journal=American Museum Novitates |issue=3335 |pages=1–18 |doi=10.1206/0003-0082(2001)335<0001:AAAAHF>2.0.CO;2|s2cid=55067700 |url=https://zenodo.org/record/5370690 }} These fossils represent the oldest recorded record of the symbiosis between mealybugs and Acropyga species ants. They are found in leaf litter and forage on low vegetation, and will nest in various sites, including soil, bark and rotten logs.

Species

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References

{{Reflist|2}}

Further reading

  • {{cite journal |last1=Wheeler |first1=W. M. |year=1935 |title=Ants of the genus Acropyga Roger, with description of a new species |journal= Journal of the New York Entomological Society |volume=43 |pages=321–329 |url=http://research.amnh.org/entomology/social_insects/ants/publications/3445/3445.pdf}}
  • {{cite journal |last1=LaPolla |first1=J. S. |last2=Fisher |first2=B. L. |year=2005 |title=A Remarkable New Species of Acropyga (Hymenoptera: Formicidae) from Gabon, with a Key to the Afrotropical Species |journal= Proceedings of the California Academy of Sciences |volume=56 |issue=30 |pages=601–605 |url=http://antbase.org/ants/publications/21150/21150.pdf}}
  • {{cite journal |last1=LaPolla |first1=J. S. |year=2004 |title= Acropyga (Hymenoptera: Formicidae) of the World |url=https://www.researchgate.net/publication/303516799 |url-access=subscription |journal=Contributions of the American Entomological Institute |volume=33 |issue=3 |pages=1–130 }}