Myrmecia pilosula (Jack Jumper)

Jack Jumper, Myrmecia pilosula
Late April 2011
Mount Wellington
Collecting stones for their nest. Many Jack Jumper nests are obvious by their position under cleared ground and their habit of adorning this area with collected small stones, seed pods, and short twigs. Not all their nests are so easily seen – see the video below for a more hidden nest.
Myrmecia pilosula Jack Jumper  Myrmecia pilosula Jack Jumper  Myrmecia pilosula Jack JumperMyrmecia pilosula Jack Jumper

Late December 2009
Mount Wellington
This video shows a well hidden Jack Jumper nest. A nearby embeded rock was hit repeatedly to agitate them. Although the ants appear to be unusually quick in their movements, this footage is in real time.
Jack Jumper nest defence

Jack Jumper, Myrmecia cf. pilosula (male)
Late March 2011
Mount Wellington

Jack Jumper, Myrmecia cf. pilosula (male)
Mid January 2015
Sisters Beach
 IMG 1389

Late May 2017
Knocklofty Reserve, Hobart
 

Late December 2015
Sisters Beach
 

Mid April 2014
Mathinna Falls Track

Late September 2014
Binalong Bay

Catching a honeybee by the tongue
Early January 2014
Rocky Cape National Park

Workers dragging a captured honeybee to their nest entrance
Late September 2018
Bicheno
   

Wolf Spider hunting a Jack Jumper Ant
Mid March 2011
Port Sorell
 

Late September 2014
Binalong Bay
Ants fighting.  Presumably from different nests.  Note the size differences.

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Late September 2014
Binalong Bay
Ant colonies fighting over dead bees,

   

The first and last 10% are real-time, with all the central in slow motion.
Capturing a Colletid Bee
Mid January 2015
Rocky Cape National Park, Sisters Beach

Capturing honeybee
Late December 2015
Rocky Cape National Park, Sisters Beach

Worker head detail
Late August 2017
Knocklofty Reserve, Hobart /nipaluna

Heading down a tree trunk
Early February 2018
Knocklofty Reserve, Hobart/nipaluna

Late July 2019
Knocklofty Reserve, Hobart/nipaluna

Mid February 2021
Knocklofty Reserve, Hobart/nipaluna

IMG 8343

Pale Brown Jack Jumper ants (Myrmecia cf. pilosula) infected by a gregarine protozoan parasite.
   

Jack Jumper Stings – Gross warning
Jack Jumper ants hold with their jaws and sting with their abdomen.  They can sting through clothing.  3% of the population are severely allergic to Jack Jumper stings. Fortunately (KE) only has a minor irritation.

1 hour after being stung twice on the ankle                 9 hours after                                                              about 23 hours post sting

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36 hours post sting                                                     48 hours later                                                             56 hours later