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The published pages on this blogs are not static. Aside from publishing new post pages, existing posts of this blog are periodically updated with photos of new species, additional photos of existing species and additional information. All materials published here are the property of the author. Reproduction of any material published here in part or in total without the expressed permission of this author is strictly forbidden.



Tuesday, April 24, 2012

Trichomyrmex destructor

Monomorium destructor has been updated to its senior synonym Trichomyrmex destructor (Jerdon 1851) This species is polymorphic having four main morphological expressions in its worker caste. Trichomyrmex destructor is also polygynous. It is a serious pest pest species with colonies causing serious damages to food stores.


Workers of Trichomyhrmex destructor. Below are the median worker and the lesser and the larger major workers missing is the minor worker.
Workers of Monomorium destructor

A major worker of Trichomyhrmex destructor.
major worker of Monomorium destructor

Workers of Trichomyhrmex destructor showing the four main morphological expression of the caste, two larger majors, a few lesser majors, a few medians and one minor worker.
Workers of Monomorium destructor showing the four morphological expression of the caste

Workers of Trichomyhrmex destructor showing the four morphological expression of the caste.

Workers of Trichomyhrmex destructor showing the four morphological expression of the caste.
Workers of Monomorium destructor showing the four morphological expression of the caste

Workers of Trichomyhrmex destructor.
Workers of Monomorium destructor

Workers of Monomorium destructor.
Workers of Monomorium destructor

Workers of Trichomyhrmex destructor.
Workers of Monomorium destructor

Major, median and minor workers of Trichomyhrmex destructor.
Major, median and minor workers of Monomorium destructor

A minor worker of Trichomyhrmex destructor.
minor worker of Monomorium destructor

Worker of Trichomyhrmex destructor.
Worker of Monomorium destructor

Worker of Trichomyhrmex destructor.
Worker of Monomorium destructor

 Queen
 Queen
Queen



Foundess queen with her first brood of workers

 Trichomyrmex destructor nesting inside cracks and gaps of concrete walls




Passive Aggression

 Trichomyrmex destructor workers strategically placing themselves all over a site to drive off Tapinoma melanocephalum from nesting in cracks of the same wall not far (around 40 centimeter) from where their nest.

 In this manner without actually attacking the Tapinoma they were able to drive them off. I caught this a little late and the main confrontation had already dissipated leaving just a small area (about a third) of the initial confrontation coverage and density by the time it took me to retrieve my camera from my residence and rushed down to take this shot. By the time I got back the Tapinoma had already mostly retreated and the Trichomyrmex coverage over the area was no longer as dense and only a third of the initial.

A close up of the left over confrontation.

Here Trichomyrmex destructor managed to drive off Carebara (Pheidologeton) ssp workers from a food find with the same passive-aggression strategy. Their strategy seems to be if they are attacked then only they attack back, biting and stinging. Solenopsis geminata too deploy a similar passive-aggressive strategy (they raise the gaster and secrete a tiny drop of venom) to protect and drive off other ants from their food find.




Taxonomy
(no rank) Root 1
(Top Node) Cellular organism 131567
Superkingdom: Eukaryota 2759 [Domain]
(no rank) Opisthokonta 33154
Kingdom: Metazoa 33208
(no rank) Eumetazoa 6072
(no rank) Bilateria 33213
(no rank) Coelomata 33316
(no rank) Protosomia 33317
(no rank) Panarthropoda 88770
Phylum: Arthropoda 6656
(no rank) Mandibulata 197563
(no rank) Pancrustacea 197562
Superclass: Hexapoda 6960
Class: Insecta 50557
(no rank) Dicondylia 85512
(no rank) Pterygota 7496
Subclass: Neoptera 33340
Infraclass: Endopterygota 33392
Order: Hymenoptera 7399
(no rank) Apocrita 7400
Suborder: Aculeata 7434
Superfamily: Vespoidea 34725
Family: Formicidae 36668
Subfamily: Myrmicinae 34695
Tribe: Crematogastrini 144004
Genus: Trichomyrmex  1652995
Species: destructor 369170


Last Updated:  2017 02 16
First Posted: 2012 04 24
© 2009 – 2017 Quah. All rights reserved.

Tuesday, April 17, 2012

Dicuspiditermes

Dicuspiditermes is another genus that has been classified under the Termes group of the taxon subfamily of Termitinae. Dicuspiditermes, Kemneritermes and Pericapritermes looks fairly similar.  Of the Dicuspiditermes termites the species Dicuspiditermes nemorosus is the most commonly found. From morphological appearance Dicuspiditermes sits between Procapritermes and Pericapritermes.

Dicuspiditermes nemorosus are characterized by at least three distinct nest structures that are peculiar to each of these ethos type. Aside from the differences in the nest structure there are also characteristic differences in the sizes of each nest structure type. Of these, two ethos types have a single protruding nest structure with slight differences in the structure shape while a third ethos type is typified by several protruding nest all connected at the based (and commonly at the base of a tree but not always) which typically (of all three ethos type) is a semi circular inverse dome starting from the ground surface and extending into a somewhat circular dome shape below.


Soldiers of Dicuspiditermes nemorosus.
Soldiers of Dicuspiditermes nemorosus

 Soldier of Dicuspiditermes nemorosus.
Soldier of Dicuspiditermes nemorosus

 Soldier and workers of Dicuspiditermes nemorosus.
Soldier and workers of Dicuspiditermes nemorosus

 Soldier of Dicuspiditermes nemorosus.
Soldier of Dicuspiditermes nemorosus.
Soldier of Dicuspiditermes nemorosus
Soldier of Dicuspiditermes nemorosus.
Soldier of Dicuspiditermes nemorosus
Soldiers of Dicuspiditermes nemorosus.
Soldiers of Dicuspiditermes nemorosus
Soldier of Dicuspiditermes nemorosus
Soldier of Dicuspiditermes nemorosus
Soldier of Dicuspiditermes nemorosus

Soldier of Dicuspiditermes nemorosus

Soldier of Dicuspiditermes nemorosus.
Soldier of Dicuspiditermes nemorosus

Soldiers of Dicuspiditermes nemorosus.

A worker and soldier of Dicuspiditermes nemorosus termite.
worker and soldier of Dicuspiditermes nemorosus termite

Soldiers and a worker of Dicuspiditermes nemorosus termite.
Soldiers and a worker of Dicuspiditermes nemorosus

A worker and soldier of Dicuspiditermes nemorosus termite.
worker and soldier of Dicuspiditermes nemorosus

A Dicuspiditermes nemorosus worker termite.
Dicuspiditermes nemorosus worker termite

 A worker and soldier of Dicuspiditermes nemorosus termite.
worker and soldier of Dicuspiditermes nemorosus

Workers, nymphs and a soldier of Dicuspiditermes nemorosus termite.
Workers, nymphs and a soldier of Dicuspiditermes nemorosus

Dicuspiditermes nemorosus termite imago.
Dicuspiditermes nemorosus termite imago

Dicuspiditermes nemorosus termite imago.
Dicuspiditermes nemorosus termite imago

Dicuspiditermes nemorosus termite imago.
Dicuspiditermes nemorosus termite imago

Nymph or larva of reproductive of Dicuspiditermes termite.
larva of reproductive of Dicuspiditermes termite

Pre-adult soldier larva of Dicuspiditermes termite. The final instar larva of a soldier of Dicuspiditermes termite.
final instar larva of a soldier of Dicuspiditermes termite

The protruding nest of Dicuspiditermes nemorosus. The main part of the nest is actually at the base and below the ground spreading out beneath as a half dome about four times the diameter of the above ground protusion.
protruding nest of Dicuspiditermes nemorosus

Nest of Dicuspiditermes nemorosus.
Nest of Dicuspiditermes nemorosus

Nest of Dicuspiditermes nemorosus cut to show internal chambers.
Nest of Dicuspiditermes nemorosus cut to show internal chambers

Nest of Dicuspiditermes nemorosus cross section to show internal chambers.
Cross section of Dicuspiditermes nemorosus nest

Soldier and worker of Discuspiditermes nemorosus.
Soldier and worker of Discuspiditermes nemorosus

Soldier of Dicuspiditermes nemorosus termite.
Soldier of Dicuspiditermes nemorosus termite


Dicuspiditermes nemorosus ssp2.

This possibly sub species of Dicuspiditermes nemorosus has a different nest structure with multiple towers. Both species are found in the same forest area. In this species (as also in those of the third ethos type) the head capsule of the soldiers shows a slight widening at the anterior (front) end.

Worker and soldier of Dicuspiditermes nemorosus.

Workers and soldier of the termites species Dicuspiditermes nemorosus.

Soldiers and workers of Dicuspiditermes nemorosus termite.

Soldier of Dicuspiditermes nemorosus.

Soldier of Dicuspiditermes nemorosus.


Nest of termite Dicuspiditermes nemorosus.

Nest of Dicsupiditermes nemorosus.

Nest of Dicsupiditermes nemorosus.
Nest of Dicuspiditermes nemorosus

Nest of Dicuspiditermes nemorosus.
Nest of Dicuspiditermes nemorosus

Dicuspiditermes nemorosus' nest.
Nest of Dicuspiditermes nemorosus

Nest of Dicuspiditermes nemorosus.
Nest of Dicuspiditermes nemorosus


Dicuspiditermes nemorosus ssp3.

Workers and soldiers of Dicuspidtermes nemorosus ssp3.

Worker and soldier of Dicuspidtermes nemorosus ssp3. This species is the smallest with the soldiers just over 5 millimeters (typical size) while the other two ethos type has soldiers at around 6 millimeters (typical size).






Nest of this third ethos type are typically smaller with a narrow stalk like lower portion. The holes are made by solitary wasp incubating their brood in the termite nest.



Dicuspiditermes sp?

This species looks fairly similar to Dicuspiditermes nemorosus and is the same size at 6 millimeters. The head capsule of the soldiers are boarder in the center of the capsule than at the anterior and posterior end, and also proportionately short (length to width ratio). Also there appears to be a very slight divide or parting on the head capsule at the posterior. Overall the head capsule appears broader (relatively to the length).






Dicuspiditermes sp3
Soldiers of Dicuspiditermes. This species is less common than Dicuspiditermes nemorosus. It is also slightly larger. It looks very much like Dicuspiditermes laetus but I do not have enough information to confirm it.
Soldiers and a worker of Dicuspiditermes sp2

Soldiers and a worker of Dicuspiditermes sp.
Soldiers and a worker of Dicuspiditermes sp2

Soldiers of Dicuspidtermes sp.
Soldiers of Dicuspiditermes



Taxonomy
Domain: Eukaryota 2759
Kingdom: Animalia
Subkingdom: Bilateria 33213
Infrakingdom: Ecdysozoa
Branch: Protostomia 33317
Superphylum: Panarthropoda 88770
Phylum: Arthropoda 6656
Subphylum: Mandibulata 197563
Infraphylum: Atelocerata
Superclass: Panhexapoda
Epiclass: Hexapoda 6960
Class: Insecta 50557
Subclass: Dicondylia 85512
Infraclass: Pterygota 7496
Superorder: Dictyoptera 6970
Order: Isoptera 7499
Family: Termitidae 46569
Subfamily: Termitinae 46569
Tribe: Termitini (Termes group 377834)
Genus: Dicuspiditermes 73856
Species: nemorosus 73857


Last Updated: 2014 07 30
First Posted: 2012 04 17
©  2010 - 2014 Quah. All rights reserved.