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Stingless bee

life science Maturity 5-7 Next article →

Stingless bees, known scientifically as Meliponini, are a diverse group of insects. They belong to the family Apidae. This family also includes common honey bees, bumblebees, and orchid bees. These four groups are part of a single lineage called corbiculate bees.

Most members of this group are highly eusocial. This means they live in organized colonies with different roles. They are famous for producing honey. The name Meliponini comes from the Greek words "meli," meaning honey, and "pōnē," meaning toil.

Abelha-jatai
Abelha-jatai

While these bees possess stingers, they are highly reduced. This means the stingers are too small to be used for defense. Instead, they use other clever methods to protect their nests. Some species have strong mandibles, which are mouthparts used for biting. These bites can be quite painful. Other species use mandibular glands to secrete caustic substances. Some might even use unpleasant smells or sticky materials to stop enemies.

Melipona quadrifasciata nest guard
Melipona quadrifasciata nest guard

Inside a colony, there is a strict division of labor among different castes. The queen is the primary egg-layer. Most queens are much larger than workers, weighing two to six times more. After mating, queens undergo physogastry. This is a process where the abdomen becomes greatly distended or swollen. Most colonies are monogynous, meaning they have only one queen. However, the species Melipona bicolor can be polygynous. This means a single colony can have as many as five queens.

Natural cavity stingless bee nest
Natural cavity stingless bee nest

Workers make up the largest part of the colony population. They handle almost every daily task. They clean the nest, nurse the young, and defend the entrance. Workers also collect food like pollen and resin. They use a special structure on their hind legs called a corbicula. This acts like a pollen basket to carry materials back to the nest.

Pollinating bee covered with pollen
Pollinating bee covered with pollen

Males, or drones, have a different role. Their only main job is to mate with queens. Drones usually leave the nest when they are two to three weeks old. They do not return to the colony.

Stingless bees have a very deep history in the fossil record. Scientists have identified twelve extinct species through fossils found in amber. Amber is fossilized tree resin. Because stingless bees collect resin to build nests, they often get trapped in it. This helps preserve them for millions of years. The oldest known fossil is Cretotrigona prisca. It was found in New Jersey amber and lived 65 to 70 million years ago. This tiny worker was only about 5 mm long.

Natural cavity stingless bee nest
Natural cavity stingless bee nest

These bees are found in many warm parts of the world. They live in the Afrotropical, Indo-Malayan, Australasian, and Neotropical regions. The Neotropics have the highest variety, with about 426 species. This area stretches from Mexico to Argentina. In Africa, there are about 36 species. Most live in tropical forests or savannahs. In Asia and Australia, about 90 species live from India to the Solomon Islands.

Geographic distribution of stingless bees
Geographic distribution of stingless bees

Researchers believe these bees may have originated in the Neotropics. They might have spread to Asia by crossing the Bering Strait.

Humans have a long history with these insects. The Mayans practiced meliponiculture, which is the farming of stingless bees. They did this on a large scale even before Columbus arrived. Today, people still farm them in countries like Brazil, Peru, and Mexico. They use man-made structures to house the colonies.

Sarang lebah kelulut
Sarang lebah kelulut

Many cultures prize meliponine honey for its perceived medicinal properties. In some African and South American communities, it is used for respiratory or digestive issues. While people value it, more research is needed to prove these medical uses.

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🖼️ Images & Media (26)
File:Open Access logo PLoS transparent.svg
Open Access logo PLoS transparent.svg
File:Tetragonisca angustula nest entrance.jpg
Tetragonisca angustula nest entrance.jpg
File:Entrada de ninho de Lestrimelitta tropica.jpg
Entrada de ninho de Lestrimelitta tropica.jpg
File:Arboreal stingless bee nest (Trigona sp.) Flores.jpg
Arboreal stingless bee nest (Trigona sp.)...
File:Abelha limão.jpg
Abelha limão.jpg
File:Entrada de ninho de Scaptotrigona postica.jpg
Entrada de ninho de Scaptotrigona postica.jpg
File:Paratrigona ground nest.jpg
Paratrigona ground nest.jpg
File:Nannotrigona testaceicornis nest entrance.jpg
Nannotrigona testaceicornis nest entrance.jpg
File:Pollinating bee covered with pollen.jpg
Pollinating bee covered with pollen.jpg
File:Mandaçaias.jpg
Mandaçaias.jpg
File:Parque Nacional da Serra do Itajaí - Liu Idárraga Orozco (86).jpg
Parque Nacional da Serra do Itajaí - Liu...
File:Hermetia illucens Black soldier fly edit1.jpg
Hermetia illucens Black soldier fly edit1.jpg

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