Formicidae Checklist: Ants
Ants are fascinating, eusocial insects belonging to the family Formicidae and have captured the imagination of humans for centuries. With over 12,000 species known to science, these tiny insects have been recorded on every continent on Earth except Antarctica. Ants thrive so well in most environments that they may form up to 25% of terrestrial animal biomass[1].
Ant Behaviour
Ants are highly social insects that live in colonies or communities. These colonies can range in size from just a few individuals to millions of ants, depending on the species. Ants are known for their incredible work ethic and their ability to work together to achieve a common goal. They are highly organised and communicate with each other using a complex system of pheromones to find food, navigate, and communicate with each other.
Social Structure of Ants
Ants have a complex social structure that is based on a hierarchy. At the top of the hierarchy is the queen ant, who is the mother of all the other ants in the colony. The queen ant is responsible for laying eggs and ensuring the survival of the colony. The worker ants are responsible for caring for the young, foraging for food, and defending the colony.
Nuptial Flight
The nuptial flight of ants is a reproductive strategy that is observed in many ant species. The winged male and female ants from different colonies leave their nests and take to the air to mate when certain environmental factors such as temperature, humidity, and the availability of food are met. Mating with individuals from other colonies ensures genetic diversity and avoids genetic issues that come with inbreeding. In general, nuptial flights tend to occur after the rain as there would be sufficient moisture for the queen to establish a new colony. During the nuptial flight, the queen ant will release pheromones to signal to the male ants that it is time to take to the air. The males will then swarm around the queen and attempt to mate with her. By natural selection, the strongest males would get to mate with the queen to pass on the strongest genes.
The male ants will die soon after mating, while the female ants will lose its wings and attempt to find a suitable place to establish a new colony. This is a critical time for the female ants, as they must find a location that provides safety and sufficient resources for them to start a new colony.
In ants, “alate” refers to the winged individuals. Conversely, “dealate” refers to those that have shed its wings. Dealate individuals can be recognised by its wing scars. Females tend to have a larger thorax as it requires more muscles for the wings to fly further in search of a suitable spot for its new colony.
Ecological Importance of Ants
Ants are an important part of many ecosystems and play a crucial role in maintaining the balance of nature. They are important predators, controlling the populations of other insects, and they also help to disperse seeds and aerate the soil. Ants are also important decomposers, breaking down organic matter and recycling nutrients.
In agriculture, ants are important pollinators and natural pest controllers. They can be used as a natural alternative to pesticides, reducing the need for harmful chemicals in farming.[2]
Ants as Pets
Ants can make fascinating and low-maintenance pets for people who are interested in observing the behaviour and social structure of these fascinating insects up close. However, it is important to obtain them legally and ethically, provide them with suitable habitats and food, and research their behaviour to ensure their safety and well-being. With the proper care and attention, ants can make wonderful and low-maintenance pets for those interested in the fascinating world of these incredible insects.
Identification
Ants have distinctively elbowed antennae and slender waists formed by nodular structures.
Most identifications here were made with reference to keys and photographs on AntWiki, as well as help from kind folks from the Myrmecologists Facebook group.
All photos are of live subjects shot in the field. Click on individual photos for larger views and views from other angles. As specimens were not collected, identifications were done based purely on photographs and may not be 100% accurate.
This page will be updated regularly, please let me know if you spot any mistakes.
View my complete Flickr photo set: Formicidae – Ants.
Region Filters
Click on any region to show only records from that region.
Class: Insecta Linnaeus, 1758
Order: Hymenoptera Linnaeus, 1758
Family: Formicidae Latreille, 1809
Subfamily: Dolichoderinae Forel, 1878
Tribe: Dolichoderini Forel, 1878
Genus: Dolichoderus Lund, 1831
East Malaysia: Dolichoderus sp.
Singapore: Dolichoderus thoracicus (Smith, F., 1860) workers
West Malaysia: Dolichoderus sp.
Ecuador: Dolichoderus attelaboides (Fabricius, 1775)
Singapore: Dolichoderus thoracicus (Smith, F., 1860)
Tribe: Tapinomini Emery, 1913
Genus: Technomyrmex Mayr, 1872
West Malaysia: Technomyrmex modiglianii Emery, 1900
West Malaysia: Technomyrmex modiglianii Emery, 1900
Singapore: cf. Technomyrmex sp.
Tribe: Unknown
Singapore: Dolichoderinae ♂
Subfamily: Dorylinae Leach, 1815
Genus: Labidus Jurine, 1807
Peru: cf. Labidus praedator (Smith, F., 1858)
Ecuador: Labidus spininodis (Emery, 1890)
Subfamily: Ectatomminae Emery, 1895
Tribe: Ectatommini Emery, 1895
Genus: Ectatomma Smith, F., 1858
Ecuador: Ectatomma lugens Emery, 1894
Ecuador: Ectatomma tuberculatum (Olivier, 1792)
Ecuador: Ectatomma sp.
Genus: Gnamptogenys Roger, 1863
East Malaysia: Gnamptogenys cf. menadensis (Mayr, 1887)
East Malaysia: Gnamptogenys cf. menadensis (Mayr, 1887)
West Malaysia: Gnamptogenys cf. menadensis (Mayr, 1887)
Ecuador: Gnamptogenys tortuolosa (Smith, F., 1858)
Subfamily: Formicinae Latreille, 1809
Tribe: Camponotini Forel, 1878
Genus: Calomyrmex Emery, 1895
East Malaysia: Calomyrmex sp.
East Malaysia: Calomyrmex sp.
Genus: Camponotus Mayr, 1861
Singapore: Camponotus sp.
West Malaysia: Camponotus sp.
Singapore: Camponotus sp.
Singapore: Camponotus sp.
Singapore: Camponotus sp.
Singapore: Camponotus sp.
Singapore: Camponotus sp.
Singapore: Camponotus sp.
Singapore: cf. Camponotus sp.
Singapore: cf. Camponotus sp.
Singapore: Camponotus sp.
Singapore: Camponotus sp.
Ecuador: Camponotus nitidior (Santschi, 1921)
Ecuador: Camponotus sp.
Genus: Colobopsis Mayr, 1861
East Malaysia: Colobopsis saundersi (Emery, 1889) complex
East Malaysia: Colobopsis saundersi (Emery, 1889) complex
West Malaysia: cf. Colobopsis sp. DSC_3755
West Malaysia: cf. Colobopsis sp. P8287929
Genus: Dinomyrmex Ashmead, 1905
Singapore: Dinomyrmex gigas (Latreille, 1802)
Singapore: Dinomyrmex gigas (Latreille, 1802)
Singapore: Dinomyrmex gigas (Latreille, 1802)
Singapore: Dinomyrmex gigas (Latreille, 1802)
Singapore: Dinomyrmex gigas (Latreille, 1802)
Genus: Echinopla Smith, F., 1857
Singapore: Echinopla striata Smith, F., 1857
Singapore: Echinopla striata Smith, F., 1857
West Malaysia: cf. Echinopla striata Smith, F., 1857
West Malaysia: cf. Echinopla striata Smith, F., 1857
West Malaysia: Echinopla densistriata Stitz, 1938
West Malaysia: Echinopla densistriata Stitz, 1938
West Malaysia: Echinopla densistriata Stitz, 1938
East Malaysia: Echinopla cf. melanarctos Smith, F., 1857
East Malaysia: Echinopla cf. melanarctos Smith, F., 1857
East Malaysia: Echinopla cf. melanarctos Smith, F., 1857
West Malaysia: Echinopla sp.
West Malaysia: Echinopla sp.
Genus: Polyrhachis Smith, F., 1857
West Malaysia: cf. Polyrhachis boltoni Dorow & Kohout, 1995
East Malaysia: Polyrhachis bellicosa Smith, F., 1859
Cambodia: Polyrhachis bihamata (Drury, 1773)
Thailand: Polyrhachis bihamata (Drury, 1773)
East Malaysia: Polyrhachis ypsilon Emery, 1887
East Malaysia: Polyrhachis ypsilon Emery, 1887
Singapore: Polyrhachis cf. armata (Le Guillou, 1842)
East Malaysia: Polyrhachis armata (Le Guillou, 1842)
West Malaysia: Polyrhachis cf. thrinax Roger, 1863
West Malaysia: Polyrhachis cf. thrinax Roger, 1863
West Malaysia: Polyrhachis rufipes Smith, F., 1858
West Malaysia: Polyrhachis rufipes Smith, F., 1858
Thailand: Polyrhachis sp.
Singapore: Polyrhachis sp.
Singapore: Polyrhachis sp.
West Malaysia: Polyrhachis sp.
East Malaysia: Polyrhachis sp.
East Malaysia: Polyrhachis sp.
East Malaysia: Polyrhachis sp.
Singapore: Polyrhachis sp.
East Malaysia: Polyrhachis sp.
East Malaysia: Polyrhachis sp.
Singapore: Polyrhachis saevissima Smith, F., 1860
Tribe: Gigantiopini Ashmead, 1905
Genus: Gigantiops Roger, 1863
Ecuador: Gigantiops destructor (Fabricius, 1804)
Ecuador: Gigantiops destructor (Fabricius, 1804)
Tribe: Oecophyllini Emery, 1895
Genus: Oecophylla Smith, F., 1860
Singapore: Oecophylla smaragdina (Fabricius, 1775)
Singapore: Oecophylla smaragdina (Fabricius, 1775)
Singapore: Oecophylla smaragdina (Fabricius, 1775)
Tribe: Plagiolepidini Fore., 1886
Genus: Anoplolepis Santschi, 1914
Singapore: Anoplolepis gracilipes (Smith, F., 1857)
Singapore: Anoplolepis gracilipes (Smith, F., 1857)
Subfamily: Myrmicinae Lepeletier de Saint-Fargeau, 1835
Tribe: Attini Smith, 1858
Genus: Acromyrmex Mayr, 1865
Belize: Acromyrmex sp.
Belize: Acromyrmex sp.
Ecuador: Acromyrmex sp.
Ecuador: Acromyrmex sp.
Genus: Aphaenogaster Mayr, 1853
Singapore: cf. Aphaenogaster feae Emery, 1889
Genus: Apterostigma Mayr, 1865
Ecuador: Apterostigma sp.
Ecuador: Apterostigma sp.
Genus: Atta Fabricius, 1804
Belize: Atta sp.
Belize: Atta sp.
Genus: Cephalotes Latreille, 1802
Belize: Cephalotes cristatus (Emery, 1890)
Belize: Cephalotes cristatus (Emery, 1890)
Ecuador: Cephalotes atratus (Linnaeus, 1758)
Ecuador: Cephalotes atratus (Linnaeus, 1758)
Genus: Daceton Perty, 1833
Ecuador: Daceton armigerum (Latreille, 1802)
Ecuador: Daceton armigerum (Latreille, 1802)
Genus: Pheidole Westwood, 1839
Ecuador: Pheidole sp.
Ecuador: Pheidole sp.
Singapore: cf. Pheidole sp. 0770
Ecuador: Pheidole sp.
Genus: Strumigenys Smith, F., 1860
Singapore: Strumigenys cf. godeffroyi Mayr, 1866
Singapore: Strumigenys cf. godeffroyi Mayr, 1866
Tribe: Crematogastrini Forel, 1893
Genus: Calyptomyrmex Emery, 1887
Singapore: Calyptomyrmex beccarii Emery, 1887
Singapore: Calyptomyrmex beccarii Emery, 1887
Singapore: Calyptomyrmex sp.
Singapore: Calyptomyrmex sp.
Genus: Cataulacus Smith, F., 1853
East Malaysia: Cataulacus horridus Smith, F., 1857
Singapore: Cataulacus cf. granulatus (Latreille, 1802)
West Malaysia: Cataulacus cf. latissimus Emery, 1893
West Malaysia: Cataulacus cf. latissimus Emery, 1893
Singapore: Cataulacus praetextus Smith, F., 1867
Singapore: Cataulacus praetextus Smith, F., 1867
Genus: Carebara Westwood, 1840
Singapore: Carebara sp.
Singapore: Carebara sp.
Singapore: cf. Carebara sp.
Singapore: cf. Carebara sp.
Singapore: Carebara sp.
Genus: Crematogaster Lund, 1831
East Malaysia: Crematogaster sp.
East Malaysia: Crematogaster sp.
West Malaysia: Crematogaster inflata Smith, F. 1857
East Malaysia: Crematogaster inflata Smith, F. 1857
Singapore: Crematogaster sp.
West Malaysia: Crematogaster sp.
West Malaysia: Crematogaster cf. sewardi Forel, 1901
Western Australia: Crematogaster sp.
Genus: Meranoplus Smith, F., 1853
West Malaysia: Meranoplus mucronatus Smith, F., 1857
West Malaysia: Meranoplus mucronatus Smith, F., 1857
Singapore: Meranoplus cf. bicolor (Guérin-Méneville, 1844)
Singapore: Meranoplus cf. bicolor (Guérin-Méneville, 1844)
Genus: Pristomyrmex Mayr, 1866
Singapore: Pristomyrmex sp.
West Malaysia: Pristomyrmex sp.
Singapore: Pristomyrmex bicolor Emery, 1900
Genus: Tetramorium Mayr, 1855
Singapore: Tetramorium bicarinatum (Nylander, 1846)
Singapore: Tetramorium lanuginosum Mayr, 1870
West Malaysia: Tetramorium sp.
East Malaysia: Tetramorium sp.
Tribe: Solenopsidini Forel, 1893
Genus: Megalomyrmex Forel, 1885
Ecuador: Megalomyrmex sp.
Genus: Myrmicaria Saunders, W.W., 1842
Singapore: Myrmicaria sp.
Singapore: cf. Myrmicaria sp.
Tribe: Unknown
Singapore: Myrmicinae ♂
Subfamily: Paraponerinae Emery, 1901
Genus: Paraponera Smith, F., 1858
Ecuador: Paraponera clavata (Fabricius, 1775)
Ecuador: Paraponera clavata (Fabricius, 1775)
Subfamily: Ponerinae Lepeletier de Saint-Fargeau, 1835
Tribe: Platythyreini Emery, 1901
Genus: Platythyrea Roger, 1863
Singapore: cf. Platythyrea parallela (Smith, F., 1859)
Tribe: Ponerini Lepeletier de Saint-Fargeau, 1835
Genus: Anochetus Mayr, 1861
East Malaysia: Anochetus sp.
Genus: Diacamma Mayr, 1862
Singapore: Diacamma sp.
Singapore: Diacamma sp.
Singapore: Diacamma sp. ♂
Singapore: Diacamma sp. ♂
Singapore: Diacamma sp.
Singapore: Diacamma sp.
Singapore: Diacamma sp.
Singapore: Diacamma sp.
Singapore: Diacamma sp.
Genus: Ectomomyrmex Mayr, 1867
West Malaysia: Ectomomyrmex leeuwenhoeki (Forel, 1886)
Genus: Myopias Roger, 1861
Singapore: Myopias sp.
Singapore: Myopias sp.
Genus: Neoponera Emery, 1901
Ecuador: Neoponera inversa (Smith, F., 1858)
Ecuador: Neoponera inversa (Smith, F., 1858)
Ecuador: Neoponera foetida (Linnaeus, 1758)
Genus: Odontomachus Latreille, 1804
Singapore: Odontomachus sp.
Singapore: Odontomachus sp.
Singapore: Odontomachus sp.
Singapore: Odontomachus sp.
Ecuador: Odontomachus sp.
Ecuador: Odontomachus hastatus (Fabricius, 1804)
Genus: Odontoponera Mayr, 1862
Singapore: Odontoponera transversa (Smith, F., 1857)
Singapore: Odontoponera denticulata (Smith, F., 1858) ♂
Genus: Paltothyreus Mayr, 1862
Mozambique: Paltothyreus cf. tarsatus (Fabricius, 1798)
Genus: Pseudoneoponera Donisthorpe, 1943
Singapore: Pseudoneoponera tridentata (Smith, 1858)
Singapore: Pseudoneoponera tridentata (Smith, 1858)
Genus: Unknown
Singapore: Ponerini
Singapore: Ponerini
Subfamily: Proceratiinae Emery, 1895
Tribe: Proceratiini Emery, 1895
Genus: Discothyrea Roger, 1863
Singapore: Discothyrea sp. P4096390
Singapore: Discothyrea sp. P4096390
Subfamily: Pseudomyrmecinae Smith, M.R., 1952
Genus: Pseudomyrmex Lund, 1831
Ecuador: Pseudomyrmex sp.
Ecuador: Pseudomyrmex sp.
Trophobiosis
Trophobiosis is common with ants where they exhibit a symbiotic relationship with other invertebrates such as sugar-excreting insects. The insects supply food in the form of their sugary excrement, while the ants offer protection from predators.
Singapore: Meranoplus sp. with Membracidae nymph
Peru: Camponotus sp. with Hypaepa costata
West Malaysia: Anoplolepis gracilipes with planthopper
East Malaysia: cf. Camponotus sp. with Cicadellidae
Belize: Dolichoderus cf. bispinosus (Olivier, 1792) with Adippe inaequalis
Cordyceps Fungus
Ophiocordyceps is an insect-pathogenic fungus, also known as cordyceps fungus, that infects ants and controls their brains. Infected ants would climb to the tallest point, often the tip of tall grass or leaves, and die there. This aids the fungus in dispersal and self-propagation when the fungus grows its fruiting body out to disperse spores.
Singapore: Polyrhachis sp.
East Malaysia: Formicidae
Group Predation
Singapore: Oecophylla smaragdina (Fabricius, 1775)
Singapore: Oecophylla smaragdina (Fabricius, 1775)
Singapore: Dinomyrmex gigas (Latreille, 1802)
Singapore:
Ant Predators
Many invertebrates are specialist ant predators. Here are some examples.
Singapore: Zodariidae
Singapore: cf. Inara flavopicta
Singapore: Amyciaea sp.
Singapore: Alcimochthes sp.
Singapore: Episinus sp.
Ant Mimicry
Several invertebrates mimic ants. Batesian mimicry is the form where mimicking an ant reduces the risk of predation, as ants are typically unpalatable and aggressive to potential predators.
Singapore: Myrmarachne mimicking Oecophylla smaragdina
Singapore: Myrmarachne mimicking Polyrhachis
Singapore: Alydidae
Singapore: Anthicidae
Singapore: Homodes sp.
Mozambique: Eurycorypha sp.
