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Genus Perdita

Perdita (Pygoperdita) interrupta interrupta Cresson - Perdita interrupta  small bee - Perdita  small bee - Perdita  small bee - Perdita Bee - Perdita Small yellow wasp on Mesquite - Perdita - female Perdita (Pygoperdita) - Perdita - female Heterotheca? - Perdita octomaculata
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 Andrenidae (Mining Bees)
Subfamily Panurginae
Genus Perdita
Explanation of Names
Author: Smith 1853.
Numbers
Nearctica lists almost 550 species.
About 700 species according to John Ascher.
Identification
Scopal hairs in females are often quite sparse, so sparse that they would be considered indicative of a male in other species. Females appear to always have a relatively long scape, similar to Lasioglossum and the males with a quite short scape.
Males have yellow maculations of T5.
Range
North America and Central America.
Remarks
Perdita females have short scopal hairs because they use moisture to stick the large pollen load to the hind tibia; males have yellow maculations of T5.
Some species are active at dawn or dusk.