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Tuesday, September 25, 2012

Dolichoderus.

Dolichoderus bituberculata is small black ant commonly found in fruits orchards and occasionally in parks where the locals loved to picnic. Dolichoderus bituberculata is monomorphic and polygynous. Very large colonies with hundreds of queens and numbers tending towards super colony size and coverage were once common in fruit orchards until the extensive use of pesticide mostly wiped them out.

Today nests with small numbers may be found in secondary forest and abandon land overgrown with shrub and low grade trees. Colonies of Dolichoderus bituberculata have a tendency to grow very large with wipe foraging coverage and numerous sub nests.


The 'rambutan' ants Dolichoderus bituberculata.

Rambutan ants Dolichoderus bituberculata workers.

Rambutan ants Dolichoderus bituberculata.
Rambutan ants Dolichoderus bituberculata

Workers of the rambutan ants Dolichoderus bituberculata.
Rambutan ants Dolichoderus bituberculata

Workers of Dolichoderus bituberculata.
Rambutan ants Dolichoderus bituberculata

Workers of Dolichoderus bituberculata.

Dolichoderus bituberculata ant workers.
Rambutan ants Dolichoderus bituberculata

Workers and a queen of Dolichoderus bituberculata.
Workers and a queen of Dolichoderus bituberculata

 A major part of the Dolichoderus bituberculata ants' diet are honey dew and plant sugary secretions.

Dolichoderus bituberculata against minor worker of Camponotus. The casualty rate ten to one Camponotus, but Dolichoderus bituberculata can afford the losses. One of the probable reason Dolichoderus bituberculata, Oecophylla smaragdina and even Anoplepis gracilles are not found in primary forest could be because Camponotus are fierce defender of their nest area and aggressively attack any large group of foraging ants that encroaches.

Workers and a queen of Dolichoderus bituberculata.


A gyne of Dolichoderus bituberculata
A queen of Dolichoderus bituberculata.

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A gyne of Dolichoderus bituberculata.

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Queens of Dolichoderus bituberculata.

Dolichoderus bituberculata queens
Queens of Dolichoderus bituberculata.




This species looks a bit like Polyrhachis australis.
Dolichoderus sp

But it has a red colored under gaster.
Dolichoderus sp

The monomorphic worker of Dolichoderus sp2.
Dolichoderus sp


Dolichoderus cuspidatus

Dolichoderus cuspidatus. This species of the Dolichoderus genus has three sets of spines (thorns). The first set of large straight spine is on the top of the second thoracic segment (mesonotum) just after the first thoracic segment (pronotum). This set on the anterior end of the mesonotum protrudes out joined before branching sideways into a sort of V-shaped spines. The second set of curvy spines at the posterior of the metanotum is similar joined before branching. The third set of tiny spines is on the petiole node.
Dolichoderus cuspidatus

The first set of spines grows out right from the middle of the anterior of the mesonotum before branching outwards.
Dolichoderus cuspidatus

The second set of spine is on the metanotum and is curved outwards and backwards.
Dolichoderus cuspidatus




See also:
Dolichoderus sp(02).



Taxonomy:
Top Node: cellular organisms
Superkingdom: Eukayota 2759
Opisthokonta 33154
Kingdom: Metazoa 33208 (aka Animalia)
(No Rank): Eumetazoa 6072
(No Rank): Bilateria 33213
(No Rank): Protostomia 33317
(No Rank): Ecdysozoa 1206784
(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): Petrygota 7496
Subclass: Neoptera33340
Infraclass: Endopterygota 33392
Order: Hymenoptera 7399
(No Rank): Apocrita 7400
Suborder: Aculeata 7434
Superfamily: Vespoidea 34725
Family: Formicidae 36668
Subfamily: Formicinae 7479
Tribe - Camponotini 72773
Genus - Camponotus 13390
Subfamily: Dolichoderinae 40139
Genus: Dolichoderus 121500
Species: bituberculata


Last Updated: 2016 01 12
First Posted: 2012 09 25
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