As the name suggests, these types of bees do not live in large groups in comparison to others. They rarely sting, and if they do, it is weak. In fact, only the female ones can and are no threat to humans. Here are some examples of the species. Solitary bees are not rare, and there are over 267 Megachile xylocopoides
It is 13 millimeters in size and often feeds on green leaves. People commonly mistake it for the Carpenter bee which is also in the same group. It constructs its home using either a petal or leaf and is active from March to September. They are useful in pollination and are not aggressive. The Megachile xylocopoides is black in color.
Other examples of solitary bees species include the Nomad, mason chocolate miner and even the wool carder bees.