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Stenamma brevicorne is a species of ant that belongs to the genus Stenamma, which is a group of small ants that are native to North America. According to Smith (1957), Stenamma brevicorne is not only one of the most widely distributed but the oldest and perhaps best known of our North American species of Stenamma. They are known for their small size and dark coloration.


Worker ants of Stenamma brevicorne are small, usually measuring around 2-3mm in length. They are dark brown or black in colour and have a shiny exoskeleton. They are known for their high activity levels and are considered to be fast-moving ants. They are considered cryptic species because the casual observer rarely finds it, and most collections are made by sifting leaf litter from the forest floor.


Stenamma brevicorne ants are known to nest in soil, under rocks or logs, in rotting wood and in other places. They are considered to be a polydomous species, meaning they have multiple nests and foraging areas. They are known to be found in a wide range of habitats, including deciduous forests, coniferous forests, meadows, and fields. Smith (1957) reported that they prefer wooded areas and usually nest in moderately dense to dense woods of such composition as maple, mixed oaks, oak-maple, red and white oaks, and beech-maple. He also added that colonies are small, consisting of only a few dozen to a hundred or so adult individuals. He also reported that this species is timid and sluggish, subterranean or hypogaeic and the workers are undoubtedly carnivorous but may also be predaceous.


Stenamma brevicorne ants are considered to be generalist foragers, meaning they will eat a wide variety of food sources. They are known to feed on nectar, fruit, and other sugary substances, as well as small insects and other invertebrates. According to Smith (1957), the worker of Stenamma brevicorne may be distinguished by its moderately large eye, which usually bears 8-10 ommatidia in its greatest diameter; the strong mesoepinoraI impression which is frequently twice as long as deep; base of epinotum usually with a transverse welt following the mesoepinorai impression; the distinct spines which are approximately one-fourth to one-third the length of the base of the epinotum; petiolar node subconical, when viewed from behind; postpetiolar node, from above, stout, as broad as, or broader than long; head, thorax, petiole and postpetiole subopaque; promesonotum largely coarsely longitudinaIly rugulose; body usually brown with the gaster light at the base and apex and darker medianly.


Stenamma brevicorne ants are considered to be a good species for ant keeping as pets, but they may require more maintenance and care than other ant species. They need specific humidity, temperature, and diet conditions to thrive. A temperature range of around 21-26 degrees Celsius (70-78 degrees Fahrenheit) and a humidity range of around 50-60% is ideal for them. They also require a protein source in their diet, such as crickets, mealworms, or other small insects, along with sugar water or honey.


Overall, Stenamma brevicorne ants are an interesting and unique species that can make for a rewarding pet for ant keepers. They are known for their small size and fast-moving behaviour, and they can provide hours of observation and entertainment with proper care. However, information about this specific species is very limited and is not well-known among ant enthusiasts.

Stenamma Brevicorne (Cryptic Species)

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