All Multimedia

Andrena asteroides "“ A male undoubtedly caught on one of the Frost Asters in Prince George's County, Maryland. Photographed by Wayne Boo

Andrena astragali, South Dakota, Badlands National Park

Andrena astragali, female, Badlands National Park, SD

Andrena atlantica. One of over 100 Andrena species in the Mid-Atlantic area. The male of this species does not have a positive means of being identified from A. alleghaniensis. Some needs to figure this out along with many other things. Photo by Sydney Price.

Andrena atlantica. One of over 100 Andrena species in the Mid-Atlantic area. The male of this species does not have a positive means of being identified from A. alleghaniensis. Some needs to figure this out along with many other things. Photo by Sydney Price.

Andrena atlantica. One of over 100 Andrena species in the Mid-Atlantic area. The male of this species does not have a positive means of being identified from A. alleghaniensis. Some needs to figure this out along with many other things. Photo by Sydney Price.

Andrena banksi, female, covered in pollen

Regionally common to sometimes even abundant, this is one of the larger Andrena of the spring. It can occur in almost any habitat, gathering pollen from a wide variety of the hugely abundant pollen and nectar sources that occur in Woodlands and surrounding scrub lands.

Regionally common to sometimes even abundant, this is one of the larger Andrena of the spring. It can occur in almost any habitat, gathering pollen from a wide variety of the hugely abundant pollen and nectar sources that occur in Woodlands and surrounding scrub lands.

Regionally common to sometimes even abundant, this is one of the larger Andrena of the spring. It can occur in almost any habitat, gathering pollen from a wide variety of the hugely abundant pollen and nectar sources that occur in Woodlands and surrounding scrub lands.

A rather pollen riddled specimen, this uncommon (at least in Maryland) species is uniquely outfit with a long-strap like labral process...for those of you who are technically inclined.

A rather pollen riddled specimen, this uncommon (at least in Maryland) species is uniquely outfit with a long-strap like labral process...for those of you who are technically inclined.

A rather pollen riddled specimen, this uncommon (at least in Maryland) species is uniquely outfit with a long-strap like labral process...for those of you who are technically inclined.

One of quite a number of spring Andrena that occur throughout North America, this one is Andrena barbilabris. It collects pollen from quite a number of different plant groups, doesn't seem to have a specialty among them.

One of quite a number of spring Andrena that occur throughout North America, this one is Andrena barbilabris. It collects pollen from quite a number of different plant groups, doesn't seem to have a specialty among them.

Andrena barbilabris "“ A male captured in Howard County, Picture taken by Brooke Alexander

Andrena barbilabris "“ A male captured in Howard County, Picture taken by Brooke Alexander

A female collected by Tracy Zarillo from the New Haven area

Andrena barbilabris "“ A male captured in Howard County, Picture taken by Brooke Alexander

Andrena barbilabris "“ A male captured in Howard County, Picture taken by Brooke Alexander

A female collected by Tracy Zarillo from the New Haven area