Fire ants room stinging ants of the genus Solenopsis, of i m sorry there space over 280 types and subspecies worldwide. The diagnostic attribute for the genus Solenopsis is the possession of a single median seta on the anterior clypeal margin.
A typical Fire ant colony produces huge mounds in open areas, and feeds mostly on young plants and also seeds. Fire ants regularly attack small animals and can kill them. Unlike numerous other ants, which bite and then spray formic acid on the wound, Fire ants only bite to acquire a grip and then sting (from the abdomen) and also inject a toxicity alkaloid venom. Because that humans, this is a ache sting — for this reason the name Fire ant— and the aftereffects of the sting have the right to be deadly to perceptible individuals. The venom is both insecticidal and antibiotic. Researchers have proposed the nurse workers will spray their brood to protect them native microorganisms. The worker ants are blackish come reddish and also vary indigenous 3–6 mm in length.
Fire ants nest in the soil, often near moist areas, such together river banks, pond edges, watered lawns and highway edges. A solitary nest is usually less than a square garden (square meter), and may have actually several small openings ~ above the surface ar or in fissures; the ants change the entrance throughout the season and may deliver immature ants in between openings.
Most fire ant types are unobtrusive, and also rarely come into contact with humans; of the few that do, most do not attain the status of major pests, together they are kept in examine by parasites, predators, and also competition with various other ants. However, at least one species, Solenopsis invicta, generally known together the Red imported fire ant (RIFA), has actually been moved around the world from that is native selection in south America and, in the lack of the predators and also parasites, has come to be a major pest nearly everywhere it has actually been introduced, together is common for invasive species. This types was coincidentally introduced into the United states via Brazilian cargo entering the harbor of Mobile, Alabama, in the 1930s. The ants have due to the fact that spread from coastal areas the Alabama and now infest big parts that the southerly U.S., and have developed a nuisance to farmers and homeowners alike from California come Maryland. Due to the fact that 2001, this types has been spread to eastern Australia, the Philippines, Taiwan, and also China.
In the southerly United claims phorid flies have been imported as an effort to manage fire ants by organic means. The genus Apocephalus, or ant-decapitating fly, of i beg your pardon 110 species have been documented, is a parasite the the ant in south America. Members the Apocephalus reproduce through laying eggs in the head that the ant. The larvae eat the components of the fire ant"s head and also emerge several days later. The phorid flies have actually been widely presented throughout the U. S. Southeast, starting with Travis, Brazos, and also Dallas counties in Texas, and also Mobile, Alabama, whereby the ants very first entered phibìc America. No all introductions have been successful, however the fly has actually been developed in part sites in every southeastern state.
Nuptial flights, once males and queens look for out mates and new nests, take place each year. Swarms are started by little groups of queens or single queens. Just one queen survives, and within a year or so, the nest expands into thousands the individuals.
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In Spanish, fire ants are well-known as hormiga colorada (red ant) or hormiga brava (surly ant). In Portuguese, castle are referred to as formiga de fogo (fire ant), formiga lava-pé (wash foot ant) and formiga toicinheira (lard ant).