Trap-jaw-ant
Guides
Anochetus mayri
Mayr's Lesser Trap-jaw Ant
Anochetus mayri is a species of trap-jaw ant in the subfamily Ponerinae, distributed across much of northern and central South America. Like other members of the genus Anochetus, it possesses enlarged mandibles capable of rapid closure to capture prey. The species was described by Carlo Emery in 1884 and remains relatively understudied compared to its congener Anochetus simoni. Records indicate presence in Brazil, Colombia, and other Neotropical regions, primarily in forested habitats.
Odontomachus brunneus
Florida Trap-jaw Ant, Brown Trap-jaw Ant
Odontomachus brunneus is a trap-jaw ant species notable for possessing the fastest predatory appendages recorded in the animal kingdom, with mandible closure speeds reaching 126-230 km/h. Workers exhibit cooperative rescue behavior toward trapped nestmates and maintain humid nest chambers that occasionally provide refugia for other species such as green anole eggs. The species has a distinctive seasonal breeding cycle with reproduction concentrated in the first six months of the year.
Odontomachus clarus
Florida trap-jaw ant
Odontomachus clarus is a species of trap-jaw ant endemic to the Florida scrub habitat on the Lake Wales Ridge in Florida. As a member of the genus Odontomachus, it possesses the characteristic elongated mandibles capable of rapid closure. The species is restricted to a specific and threatened ecosystem, making it of conservation interest.
Odontomachus haematodus
two-spined trapjaw ant
Odontomachus haematodus is a large, aggressive species of trap-jaw ant native to South America that has established introduced populations across the southeastern United States, particularly along the Gulf Coast. The species is notable for its powerful, spring-loaded mandibles capable of rapid snapping movements used in prey capture and defense. Workers are active both diurnally and nocturnally, foraging in and around rotting wood and occasionally nesting within plants such as Aechmea aquilega. Research has documented this species as a predator of Thoropa taophora tadpoles and has identified unique queen pheromones involving dialkyltetrahydrofurans, compounds previously unknown in eusocial insects.
Odontomachus relictus
Florida Scrub Trap-jaw Ant
Odontomachus relictus is a species of trap-jaw ant endemic to Florida, where it inhabits endangered scrub habitat on ancient sand ridges. It was described by Deyrup & Cover in 2004. Research suggests that populations on separate sand ridges may represent distinct species, which would make them among the rarest ants in North America. The species possesses the characteristic spring-loaded mandibles of the genus Odontomachus.
Odontomachus ruginodis
rough-node snapping ant, rough-node trap-jaw ant
Odontomachus ruginodis is a species of trap-jaw ant native to the southeastern United States, known for its powerful spring-loaded mandibles capable of snapping shut at high speeds. The species has been observed expanding its range northward from its previously known distribution centered on the Orlando, Florida area. Research has revealed that queens of this species use unique cuticular chemical compounds—specifically dialkyltetrahydrofurans—to distinguish themselves from workers, a signaling system distinct from both other Odontomachus species and the broader class of compounds once thought universal among eusocial insects. Like other trap-jaw ants, it is an active predator with a venomous sting.
Strumigenys ananeotes
Strumigenys ananeotes is a species of miniature trap-jaw ant described in 2019 from Costa Rica. It belongs to a diverse genus of predatory ants known for their elongated mandibles that snap shut to capture prey. The species name derives from Greek, meaning 'newly emerged' or 'returning to life', possibly referencing its discovery or cryptic habits. Like other members of its genus, it is likely a specialized predator of small soil arthropods.
Strumigenys chiricahua
Strumigenys chiricahua is a species of trap-jaw ant described by Ward in 1988. The specific epithet references the Chiricahua Mountains, a mountain range in southeastern Arizona known for high endemism and biodiversity. The species belongs to a large genus of miniature predatory ants characterized by specialized mandible morphology. Like other members of Strumigenys, it likely possesses elongated mandibles capable of rapid closure to capture prey.
Strumigenys membranifera
Bare Mustache Ant
Strumigenys membranifera is a minute trap-jaw ant species native to the Old World tropics that has become a globally distributed tramp species. It is one of only six known Strumigenys species exhibiting thelytokous parthenogenesis, where virgin queens produce diploid female offspring from unfertilized eggs without sperm involvement. Queens retain a functional spermatheca and complete reproductive system despite rarely mating, with males produced only exceptionally. The species has been recorded from numerous regions including Taiwan, Greece (Crete), the Galápagos Islands, and across Asia, reflecting its capacity for human-mediated dispersal and establishment in new environments without mating requirements.
Strumigenys pilinasis
Hairy-snouted Mustache Ant
Strumigenys pilinasis is a species of trap-jaw ant in the family Formicidae, first described by Auguste Forel in 1901. The species is characterized by its distinctive pilose (hairy) snout, which gives rise to its common name. Like other members of the genus Strumigenys, it possesses elongated mandibles capable of rapid closure to capture prey. The species has been historically classified under the genus Pyramica, which is now treated as a synonym of Strumigenys. It belongs to a diverse genus containing over 850 described species, many of which remain poorly known.
Strumigenys pulchella
Pulchella-group Mustache Ant
Strumigenys pulchella is a species of trap-jaw ant in the genus Strumigenys, described by Emery in 1895. Members of this genus are characterized by elongated mandibles that can snap shut with remarkable speed to capture prey. The species belongs to the 'pulchella-group' of Strumigenys, informally referred to as 'Mustache Ants' due to distinctive facial pilosity. Like other Strumigenys species, it is likely a specialized predator of small soil arthropods, though specific ecological details for this species remain poorly documented.
Strumigenys silvestrii
silvestrii-group Pygmy Snapping Ants
Strumigenys silvestrii is a tiny dacetine ant in the genus Strumigenys, a group known for their specialized trap-jaw mandibles. Native to South America, this species has undergone significant geographic expansion, establishing populations across the West Indies, southern United States, and more recently in the Old World (Madeira, mainland Portugal, and Macau). It represents the only New World dacetine ant recorded in the Old World. The species exhibits a complex biogeographic pattern with records from both undisturbed forests and human-modified environments.