It has been split into many subgenera, including Asaropoda, Micramegilla, Notomegilla and Zonamegilla.

[2] All Amegilla species burrow to make nests[2] and they are commonly referred to as "digger bees".

[4] Amegilla are associated with arid and subarid biomes, matorrals, steppes, sub-deserts and deserts.

This in combination with the fact that some species are known from only a few specimens means that their abundance and distribution is believed to be underestimated.

[6][7] Females are adept at buzz-pollination, and some species have proven or potential value as pollinators of greenhouse tomatoes.