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Topic: Adetomyrma


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In the News (Wed 25 Nov 09)

  
  Dracula ant - Wikipedia, the free encyclopedia
Dracula Ants of the genus Adetomyrma are rare and primitive ants endemic to the island of Madagascar.
This behaviour is thought to represent a precursor to the social feeding behaviour typical of more derived ant species, which use their larvae to digest their food (with the larvae later regurgitating it for the adults—which are unable to digest their own food—to eat).
This single joint may indicate the Dracula Ant to be an evolutionary "missing link" between ants and wasps which have similar abdomens.
en.wikipedia.org /wiki/Dracula_Ant   (335 words)

  
 Dracula Ants May Be Key Evolutionary Link   (Site not responding. Last check: 2007-11-05)
While the genus of the 'Dracula1' species was first identified in Madagascar in 1993, Fisher's discovery of the first entire colony of the insects allows scientists to draw a more detailed picture of ant evolution.
The Madagascar ants, belonging to the genus Adetomyrma, have just a single connection between their thorax and their abdomen instead of the two or three joints found in 'modern' ant species, Fisher said.
The Adetomyrma ants also display a grisly feeding habit which Fisher believes may be the basis for the 'social food sharing' that has come to characterize ant colonies.
website.lineone.net /~oddweb/articles/a_8_dracula_ants.htm   (494 words)

  
 A 'Missing Link' With Grisly Habit   (Site not responding. Last check: 2007-11-05)
The new species, a member of the genus Adetomyrma, also suggests that a common behavior among most ant species the sharing of food had gruesome beginnings.
Dr. Fisher brought the ants back just a week ago, but experts are already excited, because the find may resolve many of the mysteries surrounding Adetomyrma.
In 1993, Dr. Philip S. Ward, a professor of entomology at the University of California at Davis, found a few dead worker ants belonging to a closely related species.
fluid.stanford.edu /~mbrennan/interests/insects/vampire_ants.html   (733 words)

  
 Discovery of Blood-Sucking Ant Species Scrambles Some Theories
His find, Fisher says, could offer a crucial key to understanding how ants have evolved and diversified from their ancestors, the wasps, tens of millions of years ago.
The new species, he said, shows how remarkably specialized their behavior has become - "a strange mixture of the primitive and the derived," he called it.
Ant species are currently divided into two sub-families, and the Adetomyrma somehow share characteristics of both groups, so the distinctions between them are unclear - another indication that the entire ant evolutionary tree may need to be redrawn, Fisher said.
www.sfgate.com /cgi-bin/article.cgi?file=/chronicle/archive/2001/01/15/MN138629.DTL   (1005 words)

  
 Alumni Award Winners, 2001
As Brian told the New York Times, “I pushed through an area that was soft and all these ants came storming out and biting my hand.
What Brian found was a new species of Adetomyrma ants.
These ants lacked the usual waist-like constrictions between the back part of the ant’s body, called the gaster, and the thorax.
www.uhigh.ilstu.edu /alumni/awardwin/2001/brianfisher.html   (368 words)

  
 Adetomyrma - www.ezboard.com
While browsing I found this interesting article about Adetomyrma.
Adetomyrma comes out on a branch of its own at the base of the poneroid clade, namely that containing ponerines, the various army and legionary ant groups and some other lesser known ones such as Apomyrma.
The social insects web site has a nice on-line article on cretaceous ants and ant phylogeny with details, under the title "Oldest known ants discovered...".
p211.ezboard.com /fantfarmfrm2.showMessage?topicID=187.topic   (187 words)

  
 California Academy of Sciences - Newsroom   (Site not responding. Last check: 2007-11-05)
Fisher’s unprecedented capture of these ants, belonging to the rare genus Adetomyrma, will provide the first opportunity for scientists to study this enigmatic species, which is critical for understanding ant evolution.
With only 282 known genera of ant species in the world, the discovery of a new genus is extremely uncommon.
Fisher has observed queens of this rare group of ants cutting holes into their own larvae and sucking the hemolymph (insect blood), thus earning them their nickname, Dracula Ants.
www.calacademy.org /geninfo/newsroom/releases/2001/dracula_ants0101.html   (779 words)

  
 Genus Adetomyrma (Subfamily Ponerinae) - Online Catalog of Ants of North America   (Site not responding. Last check: 2007-11-05)
You do not have to restart your browser or your computer after you do this.
However, its lacks the defining synapomorphy of the ponerines (fusion of the tergite and sternite of abdominal segment IV).
An alternative phylogenetic placement is to put Adetomyrma as a sister group to the army ants (Grimaldi, Agosti & Carpenter, 1997.
www.cs.unc.edu /~hedlund/dev/ants/GenusPages/Ponerinae/Genus9-paper.html   (206 words)

  
 Madagascar - AntWeb
There are five additional genera known from R�union, Mauritius, and Seychelles which have not been recorded from Madagascar.
The 46 genera include four endemic to Madagascar (Adetomyrma, Eutetramorium, Pilotrochus, and Unnamed Genus #1).
These genera deserve special attention because of their potential importance for understanding ant evolution as a whole and the biogeography and origin of this group on Madagascar.
www.antweb.org /madagascar.jsp   (323 words)

  
 Amblyoponinae
Please visit the official version of this page, which is available here.
Bolton (2003) raised the group to subfamily status, included the aberrant genus Adetomyrma, and listed their synapomorphies.
Ward, P. Adetomyrma, an enigmatic new ant genus from Madagascar, and its implications for ant phylogeny.
tolweb.org /tree?group=Amblyoponinae   (523 words)

  
 California Academy of Sciences - Headline Science - Dracula Ants   (Site not responding. Last check: 2007-11-05)
Colonies of this strange new species may contain more than 10,000 workers, multiple wingless queens, and winged males.
It's the first time these ants, which belong to the rare genus Adetomyrma, have been captured alive.
The specimens will provide the first opportunity for scientists to study this enigmatic ant, which may hold the key to ant evolution.
www.calacademy.org /science_now/archive/headline_science/dracula_ants.html   (254 words)

  
 Heads Up! Bolton introduces big changes in taxonomy. - www.ezboard.com
I was a supporter of this genus since the few tries in history to erect it were counterattacked !
And finally these two things : Adetomyrma has finally got a place in the Amblyoponinae and the erection of the subfamily Agroecomyrmecinae ( Including the genus Tatuidrics.
Than two personal remarks : I do like the fact that the Doryline Section stays divided in several subfamilies and also that some genera like Formicoxenus stay alive !
pub8.ezboard.com /fantfarmfrm4.showMessage?topicID=634.topic   (1759 words)

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