What is the key diagnostic feature defining the Family Megachilidae for bees like the Wool Carder Bee?

Answer

Pollen carried on specialized hairs located on the underside of their abdomen, the scopa

The classification into the Family Megachilidae is strongly supported by a critical anatomical distinction related to reproduction and foraging: the manner in which the female bee transports pollen. Unlike bees in the Family Apidae (such as honeybees or bumblebees) which possess specialized pollen baskets, or corbiculae, located on their hind legs, female Megachilids carry their collected pollen mass dry on long, stiff hairs covering the underside of the abdomen. This structure is specifically termed the scopa. This anatomical difference is a major feature used by taxonomists to separate members of Megachilidae from other bee families, making it a defining characteristic for identifying groups like mason bees, leafcutter bees, and the Wool Carder Bee within this family.

Related Questions

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taxonomy insect bee classification science