Solenopsis molesta | |
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Solenopsis molesta worker | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Myrmicinae |
Tribe: | Solenopsidini |
Genus: | Solenopsis |
Species: | S. molesta |
Binomial name | |
Solenopsis molesta Buren, 1972 | |
Solenopsis molesta is the best known species of Solenopsis thief ants. They get their names from their habit of nesting close to other ant nests, from which they steal food. They are also called grease ants because they are attracted to grease. Nuptial flight in this species occur from late July through early fall. [1]
S. molesta range anywhere from 1/32 of an inch (0.5 mm) to 1/8 of an inch (3 mm) long. Queens in this species measure at just over 5mm in length and range from a yellow to a light brown color. Workers are yellow and occasionally pale brown in appearance. They have very small eyes and are covered in erect and sub-erect yellow hairs. These ants have a two-segmented petiole (a petiole and postpetiole) connecting their abdomen to the thorax. They have 10 segments in their antennae, which end in large segmented clubs. Thief ants possess small stingers on their oblong abdomens. Worker ants have large jaws for carrying food, usually other ants' brood, back to the colony.[ citation needed ] The larvae of thief ants have been described from the Brazilian species Solenopsis helena . [2] Despite a general resemblance to the larvae of the larger fire ants, [3] the larvae of thief ants are much smaller and present spiculate hairs on their face. [2]
S. molesta are native to the United States and can be found in Eastern, Western, and Central parts of the country and northern Mexico.[ citation needed ]
The habitat of Solenopsis molesta is vast, because they can survive just about anywhere. They can live in people's homes, in the cracks or under the floorboards. They can build nests anywhere, but usually near the nests of other species they steal from. They usually nest under rocks, in any exposed soil, or rotting logs. If they cannot find any of these things, then they move into another colony. Their nests are generally large for the ants’ size, and have tunnels that lead to another ant colony for a reliable and steady food source.[ citation needed ]
Colonies of S. molesta usually have anywhere from a few hundred to a few thousand workers. Colonies are occasionally polygynous, with a maximum of eight queens in a single nest. The number of thief ants in a colony depends on the location. Colonies with a reliable and ready food source do not have as many workers because food is readily available. Since ants of this species are so small, they can colonize just about anywhere. They can live in people's homes without them ever knowing that they have an infestation of tiny ants. Solenopsis molesta are common in homes, and due to their small size they can easily enter sealed packages of food. Other thief ant colonies are inside other ant colonies. They then eat the food and sometimes larva of the host ants. They will eat just about anything, including dead animals and fungal spores, and will travel great distances in search for food. Once food has been found, a trail is formed from the colony to the food so the other thief ant workers can find it.[ citation needed ]
S. molesta queens are bigger than the workers, being four to five millimeters long. Mating takes place from late July to early fall. Both the queens and S. molesta drones have wings, and mating takes place while flying. Queens sometimes fly with a worker or two clinging to their bodies, presumably to help out right away when the queen finds a suitable place for a colony. Queens can lay anywhere from 27 and 387 eggs per day, but the average number of eggs laid per day is 105. It takes about 52 days for an egg to become a fully mobile worker. [4] Young Solenopsis molesta spends about 21 days in the larval stage when the weather is suitable.[ citation needed ]
They eat grease whenever they find it, which is why they are sometimes called grease ants. They also eat meat, cheese and other dairy products, and seeds. They also eat larvae and pupae of other ant species and other insects such as codling moths. Thief ants do not appear to be attracted to sweets, unlike most other ants. They will however, for example, consume fruits and sugary soft drinks.[ citation needed ]
Solenopsis molesta can be troublesome when they get into human dwellings. It is extremely hard to find these ants, due to their inaccessible and remote nesting areas and their extremely small size. They are also not always present outside their colony, and travel far to find food. Also, they are so small they can get into things that other insects cannot get into. The easiest way to locate a colony is to look for trails of ants. It is also hard to get rid of a S. molesta infestation because they are not attracted to common ant traps. One of the most common ways to get rid of the ants is to put oil or grease in the middle of the ant trap. However, this is a hit-or-miss method, because too little grease will not attract the ants, and too much will limit the effectiveness of the trap. The ants also appear to be resistant to most insecticides.[ citation needed ]Solenopsis molesta are sometimes mistaken for the pharaoh ant, because there are similarities between the two. They are both around the same size, but there are differences in their markings.[ citation needed ]
Yellowjacket or yellow jacket is the common name in North America for predatory social wasps of the genera Vespula and Dolichovespula. Members of these genera are known simply as "wasps" in other English-speaking countries. Most of these are black and yellow like the eastern yellowjacket and the aerial yellowjacket ; some are black and white like the bald-faced hornet. Some have an abdomen with a red background color instead of black. They can be identified by their distinctive markings, their occurrence only in colonies, and a characteristic, rapid, side-to-side flight pattern prior to landing. All females are capable of stinging. Yellowjackets are important predators of pest insects.
Atta is a genus of New World ants of the subfamily Myrmicinae. It contains at least 17 known species.
Fire ants are several species of ants in the genus Solenopsis, which includes over 200 species. Solenopsis are stinging ants, and most of their common names reflect this, for example, ginger ants and tropical fire ants. Many of the names shared by this genus are often used interchangeably to refer to other species of ant, such as the term red ant, mostly because of their similar coloration despite not being in the genus Solenopsis. Both Myrmica rubra and Pogonomyrmex barbatus are common examples of non-Solenopsis ants being termed red ants.
Solenopsis invicta, the fire ant, or red imported fire ant (RIFA), is a species of ant native to South America. A member of the genus Solenopsis in the subfamily Myrmicinae, it was described by Swiss entomologist Felix Santschi as a variant of S. saevissima in 1916. Its current specific name invicta was given to the ant in 1972 as a separate species. However, the variant and species were the same ant, and the name was preserved due to its wide use. Though South American in origin, the red imported fire ant has been accidentally introduced in Australia, New Zealand, several Asian and Caribbean countries, Europe and the United States. The red imported fire ant is polymorphic, as workers appear in different shapes and sizes. The ant's colours are red and somewhat yellowish with a brown or black gaster, but males are completely black. Red imported fire ants are dominant in altered areas and live in a wide variety of habitats. They can be found in rainforests, disturbed areas, deserts, grasslands, alongside roads and buildings, and in electrical equipment. Colonies form large mounds constructed from soil with no visible entrances because foraging tunnels are built and workers emerge far away from the nest.
Solenopsis fugax is a myrmicine ant of the genus Solenopsis.
The black garden ant, also known as the common black ant, is a formicine ant, the type species of the subgenus Lasius, which is found across Europe and in some parts of North America, South America, Asia and Australasia. The European species was split into two species; L. niger, which are found in open areas; and L. platythorax, which is found in forest habitats. It is monogynous, meaning colonies contain a single queen.
An ant colony is a population of ants, typically from a single species, capable of maintaining their complete lifecycle. Ant colonies are eusocial, communal, and efficiently organized and are very much like those found in other social Hymenoptera, though the various groups of these developed sociality independently through convergent evolution. The typical colony consists of one or more egg-laying queens, numerous sterile females and, seasonally, many winged sexual males and females. In order to establish new colonies, ants undertake flights that occur at species-characteristic times of the day. Swarms of the winged sexuals depart the nest in search of other nests. The males die shortly thereafter, along with most of the females. A small percentage of the females survive to initiate new nests.
Carpenter ants are large ants indigenous to many forested parts of the world.
The pharaoh ant is a small (2 mm) yellow or light brown, almost transparent ant notorious for being a major indoor nuisance pest, especially in hospitals. A cryptogenic species, it has now been introduced to virtually every area of the world, including Europe, the Americas, Australasia and Southeast Asia. It is a major pest in the United States, Australia, and Europe. The ant's common name is possibly derived from the mistaken belief that it was one of the Egyptian (pharaonic) plagues.
The name army ant (or legionary ant or marabunta) is applied to over 200 ant species in different lineages. Because of their aggressive predatory foraging groups, known as "raids", a huge number of ants forage simultaneously over a limited area.
Tapinoma sessile is a species of small ant that goes by the common names odorous house ant, sugar ant, stink ant, and coconut ant. Their colonies are polydomous and polygynous. Like many social insects, T. sessile employs complex foraging strategies, allocates food depending on environmental conditions, and engages in competition with other insects.
Atta sexdens is a species of leafcutter ant belonging to the tribe Attini, native to America, from the southern United States (Texas) to northern Argentina. They are absent from Chile. They cut leaves to provide a substrate for the fungus farms which are their principal source of food. Their societies are among the most complex found in social insects. A. sexdens is an ecologically important species, but also an agricultural pest. Other Atta species, such as Atta texana, Atta cephalotes and others, have similar behavior and ecology.
Tetramorium immigrans—also known as the immigrant pavement ant, pavement ant, and the sugar ant in parts of North America—is an ant native to Europe, which also occurs as an introduced pest in North America. Its common name comes from the fact that colonies in North America usually make their nests under pavement. This is one of the most commonly seen ants in North America, being well adapted to urban and suburban habitats. It is distinguished by a single pair of spines on the back, two nodes on the petiole, and grooves on the head and thorax.
Solenopsis daguerrei is a species of parasitic ants native to Argentina and Uruguay . The young queens of the species invade the nests of other species, such as the red imported fire ant (RIFA). This is made possible by the fact that the S. daguerrei queen produces pheromones which are very similar to those produced by the queens of the host species. The young queen finds a queen of the host species and latches onto it, eating the food intended for the host queen and slowly killing it. The S. daguerrei queen then begins laying eggs. These are taken care of by the host ants, sometimes preferentially to their own brood. S. daguerrei only produce winged virgin queens and males. No workers are needed, since these are provided by the host species. The winged ants fly off to mate and invade new colonies.
Nuptial flight is an important phase in the reproduction of most ant, termite, and some bee species. It is also observed in some fly species, such as Rhamphomyia longicauda.
A queen ant is an adult, reproducing female ant in an ant colony; she is usually the mother of all the other ants in that colony. Some female ants, such as the Cataglyphis, do not need to mate to produce offspring, reproducing through asexual parthenogenesis or cloning, and all of those offspring will be female. Others, like those in the genus Crematogaster, mate in a nuptial flight. Queen offspring ants among most species develop from larvae specially fed in order to become sexually mature.
Carebara diversa is a species of marauder ant widely distributed throughout Asia.
Solenopsis saevissima, commonly known in Brazil as formiga de fogo, formiga-vermelha, or formiga-lava-pes, is one of more than 185 species in the genus Solenopsis. It, along with 13 other species, is also a member of the Solenopsis saevissima species group which are popularly known as fire ants.
Dorylus laevigatus is a member of the army ant genus Dorylus, or Old World army ants. More specifically known as "driver ants", the genus Dorylus is abundant throughout Africa and stretches into tropical Asia, where D. laevigatus is primarily found. They are a eusocial colony-forming species, which live primarily underground, rarely venturing to the surface for any reason. D. laevigatus colonies are small for army ants, estimated averages falling between 30,000 and 1,000,000 individuals.
Solenopsis abdita is a species of thief ant in the Solenopsis molesta complex, first described in 1989 in Florida. It is native to Florida but may be found in the surrounding states, though this is not confirmed. This species can be hard to differentiate from Solenopsis texana and S. carolinensis, but there are a few minor differences, such as having a longer scape and a wider petiole. Thus, the main method used to distinguish these species primarily uses queens and males, though unfortunately usually only workers are collected, making it difficult to correctly identify this species. S. molesta is known to nest in rotten wood in pine–oak forests, and workers have been collected from leaf litter in said forests.
This article includes a list of general references, but it lacks sufficient corresponding inline citations .(November 2007) |