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Genus Nomada

Red and Pubescent - Nomada Which bee is this, please? - Nomada - female Nomada - female Red Bee - Nomada - female Nomada - female Cuckoo bee - Nomada Cuckoo Bee - Nomada Nomada on spring beauty flower - Nomada - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Bees, Ants, and other Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Apidae (Cuckoo, Carpenter, Digger, Bumble, and Honey Bees)
Subfamily Nomadinae (Cuckoo Bees)
Genus Nomada
Numbers
Neartica lists 290 North American species.
Ten subgenera were recognized but the genus is now divided into species groups instead.
Identification
Members of this genus are usually red and yellow and/or black and of medium or small size.
Remarks
They are parasites of many species of bee, primarily Andrena but also Agapostemon.

Some are parasites of Eucera (Synhalonia) and these are usually larger than the Andrena cleptoparasites
… John S. Ascher, 23 April, 2008
Internet References