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Friday, October 30, 2009

Odontoponera

This common black ant is an effective predator of small insects. It is a very common ant found almost everywhere where there are any small strips of vegetation even beside pavement and buildings.

Mainly solitary hunters of small prey (arthropods of about its size or smaller) they also participate in group attack on exposed nest of other ants. They are the main competitor to the Diacamma genus.

Odontoponera denticulata rarely use their stings which seemed to be reserved for their battle with other ants of similar size. They have a very effective bite as is evident in the shape and teeth of their mandibles.

Similar with many species of Ponerinae ants, some Odontoponera workers are able to lay eggs even if they never mated.

Odontoponera denticulata queen are what I call 'hunter mamas'. The dealate gyne hunts for food for her first brood and does not seal herself into the security of her nest (is semi-claustral) while waiting for her first batch of workers to mature. Typical of most ants, Odontoponera, swarms after dark usually followed on a rainy spell. The gyne are almost the same size as the workers and the easily observable feature is her slightly thicker thorax. In the workers the thorax tapers towards the 'waist' joining the gaster. Ant keepers see bottom of page for details to acquire and raise a Odonponera denticulata queen.

Odnontoponera denticulata are among some species of ants that have, what I call 'slippery feet'. Their legs are unable to grip onto smooth surfaces like smooth glass, stones, etc.


Nest opening of Odontoponera denticulata
Nest opening of Odontoponera transversa.

Nest opening of Odontoponera transversa
Nest opening of Odontoponera denticulata.

An Odontoponera ant dragging a Macrotermes malaccensis major soldier
An Odontoponera ant dragging a Macrotermes malaccensis major soldier.

The workers.

Odontoponera dennticulata worker
An Odontoponera denticulata worker.

Odontoponera transversa worker
An Odontoponera transversa worker.

An Odontoponera denticulata worker.


An Odontoponera transversa worker.

The Queen.
Female alate of Odontoponera
Female alate of Odontoponera

Female alate of Odontoponera
Female alate of Odontoponera


Female alate of Odontoponera
Female alate of Odontoponera


Queen or gyne of Odontoponera denticulata
A new gyne of Odontoponera denticulata with her first egg (left)

The Odontoponera transversa queen.

The Odontoponera dentriculata queen.

The Brood.

Odontoponera transversa queen with her first brood.

Odontoponera denticulata gyne are hunter queens in that a dealate gyne hunts and forages for food while awaiting the maturing of her first brood of workers. 

The larvae feeding on a juicy drumstick of cricket.

Close-up of a young larva.

A young nest of Odontoponera denticulata.

Nest of Odontoponera transversa.

Nest of Odontoponera denticulata.

Nest of Odontoponera transversa.

Workers of Odontoponera transversa has a unique way of bringing water back to the nest. They roll the water in a water bubble as shown in this series of photos.


Odontoponera transversa worker collecting water for the larvae by rolling water into a small bubble ball.

The water is meant for the larvae when the weather is very dry and the earth nest dries out. Apparently this species does not regugitate food or water to feed the brood.


Ant Keepers Guide To Odontoponera Transversa.

The nuptial swarming of Odontoponera transversa takes place at dusk and into the night. Like all late evening to night swarmers the alates are attracted to light sources so if you are living in the city it would be pretty difficult to track down a mated queen due to the high dispersion factor. But if you live close to the ground in semi urban areas and these ants are quite common, leaving your windows open and lights on during their nuptial swarmings will most likely see some dealated gyne running on the floor. This ants has slippery feet and cannot climb smooth surface.

Being a hunter queen there is also a chance to retrieve a mated queen especially in the morning, evening and night time if you hunt for them with a torch. The newly mated queen will forage for food mostly at night for up to period of over a month after her mating. This she does to provide food for her growing brood.

If you acquire a mated qyne you will need to feed her regularly while she raise her first brood of workers. Without food she will not lay eggs and will die after several days. Unlike carpenter ants which can tolerate a fairly high humidity level, Odontoponera transversa cannot and will most probably drown if the humidity in an enclosed or semi sealed environment is too high.




Taxonomy
Kingdom - Animalia
Phylum - Arthropoda
Subphylum - Hexapoda
Class - Insecta
Subclass - Pterygota
Infraclass - Neoptera
Order - Hymenoptera
Suborder - Apocrita
Infraorder - Aculeata
Superfamily - Vespoidea
Family - Formicidae -- ants, fourmis
Subfamily - Ponerinae
Genus: Odontoponera
Species: transversa/denticulata


Last Updated: 2014 12 17
First Posted: 2009 10 30
© 2009 - 2014 Quah. All rights reserved.

Friday, October 23, 2009

Proatta Butteli

This small ant tagged as Proatta butteli looks very similar to a fungus growing species of South American ant Mycocepurus. This is a polygynous monomorphic species. Proatta butteli are somewhat slow moving and not very aggressive. The queen plays dead curled up like a pupa when threatened, as also the workers froze when their nests are exposed. These are probably effective defensive strategies against large predators like birds which are visual hunters zoning in on their prey's movements.


 Nest of Proatta butteli under a fallen tree branch.
Protta butteli commonly nest under fallen tree trunks and branches. They also common carpet their nests with shredded wood which might be indicative of how Atta and other fungus cultivation ants learned (or if you prefer the correct scientific terminology – mutated) to become mushroom growing ants.

In this nest the carpet of wood shred, grass and leaves has taken on the form of a platform.

Proatta butteli workers, male (drone) and brood.

Lateral view of the male of Proatta butteli.

Frontal view of the male of Proatta butteli.

Workers of Proatta butteli.
Workers of Proatta butteli.


Proatta Butteli worker

A worker of Proatta butteli with some larvae.
Proatta Butteli ant worker



A worker of Proatta butteli

Workers of the ant species Proatta butteli.

Some workers eating a morsel of chicken.




The queen or gyne of Proatta butteli

Proatta Butteli gyne

The gyne looks likes a miniture version of that of a leaf cutter ant.
Proatta Butteli queen


Taxonomy
Kingdom - Animalia
Phylum - Arthropoda
Subphylum - Hexapoda
Class - Insecta
Subclass - Pterygota
Infraclass - Neoptera
Order - Hymenoptera
Suborder - Apocrita
Infraorder - Aculeata
Superfamily - Vespoide
Family - Formicidae -- ants, fourmis
Subfamily - Myrmicinae
Genus: Proatta
Species: butteli

Last Updated: 2016 09 06
First Posted: 2009 10 23
© 2009 – 2016 Quah. All rights reserved.

Crematogaster

Crematogaster the acrobat ant. Crematogaster are a genus of pungent smelly ants most of which are aboreal. Many species of this genus weave a nest of paper-like silk but some live in the trunk and branches of trees. Many species of Crematogaster from this region (South Asia) are polymorphic while most are monomorphic. Some of the species especially the larger species are pungent smelling.


Crematogaster inflata. This species of the Crematogaster genus have enlarged metapleural gland filled with a defensive liquid that the ant releases when attacked. 

Crematogaster inflata is monomorphic.

black species of Crematogaster
A black species of Crematogaster. This species is polymorphic.

A black species of Crematogaster.

A black species of Crematogaster.

A black species of Crematogaster.

A black species of Crematogaster.

Sp2.
A brown species of Crematogaster of about the same size as the first black species above.
A Crematogaster major worker.



The three morphological expression in the worker caste. The major worker, the median worker and the minor worker.

A Crematogaster nest on a bamboo tree.

A tiny species of Crematogster and the larger cousin sp2 (right).


Sp3.


A small Crematogaster worker with an egg.

Sp4.
A small black species.

Sp5.
This species is monomorphic.




Sp7.



Workers of  Crematogaster s(09).

Others





See also:
Crematogaster sp(10)



Taxonomy:
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Subclass: Pterygota
Infraclass: Neoptera
Order: Hymenoptera 7399
Suborder: Apocrita 7400
Infraorder: Aculeata 7434
Superfamily: Vespoidea 34725
Family: Formicidae 36668
Subfamily: Myrmicinae 34695
Tribe: Crematogastrini 144004
Genus: Crematogaster 29040
Subgenus: Crematogaster 200574



Last Updated: 2017 01 17
First Posted: 2009 10 23
© 2009 – 2017 Quah. All rights reserved.