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Eastern Ecological Science Center images.

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Andrena barbilabris, F, face, CT, New Haven County
Andrena barbilabris, F, face, CT, New Haven County
Andrena barbilabris, F, face, CT, New Haven County

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.

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Andrena barbilabris, F, side, CT, New Haven County
Andrena barbilabris, F, side, CT, New Haven County
Andrena barbilabris, F, side, CT, New Haven County

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.

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Andrena bisalicis, female, back
Andrena bisalicis, female, back
Andrena bisalicis, female, back

Andrena bisalicis, female, Carolina Sandhills National Wildlife Refuge, SC, Chesterfield County

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Andrena brevipalpis, M, face, Caroline County
Andrena brevipalpis, M, face, Caroline County
Andrena brevipalpis, M, face, Caroline County

From a study of woodland bees in the mid-Atlantic area comes this small, somewhat obscure, Andrena found in a woodland in Caroline County, Maryland. For some reason, a number of males in the genus Andrena have yellow on their faces, while the females do not.

From a study of woodland bees in the mid-Atlantic area comes this small, somewhat obscure, Andrena found in a woodland in Caroline County, Maryland. For some reason, a number of males in the genus Andrena have yellow on their faces, while the females do not.

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Andrena caerulea, f, face, Santa Barbara, CA
Andrena caerulea, f, face, Santa Barbara, CA
Andrena caerulea, f, face, Santa Barbara, CA

As its name implies, Andrena caerulae, is a bee with a deep blue shimmer to its skin. Unlike the plain black models of most of the other 500+ species of Andrena this species stands out, making identification a bit easier.

As its name implies, Andrena caerulae, is a bee with a deep blue shimmer to its skin. Unlike the plain black models of most of the other 500+ species of Andrena this species stands out, making identification a bit easier.

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Andrena forbesii, Female, Back, Maryland
Andrena forbesii, Female, Back, Maryland
Andrena forbesii, Female, Back, Maryland

There are a group of bees in the genus Andrena that form a fairly distinct subgenus called Tracandrena. They are notorious for being difficult to separate out and, in particular, the males all look pretty much the same. I have created a little Excel spreadsheet that help separate out the females, if anyone is interested.

There are a group of bees in the genus Andrena that form a fairly distinct subgenus called Tracandrena. They are notorious for being difficult to separate out and, in particular, the males all look pretty much the same. I have created a little Excel spreadsheet that help separate out the females, if anyone is interested.

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Andrena fulvipennis, M, Back, MD, Anne Arundel County
Andrena fulvipennis, M, Back, MD, Anne Arundel County
Andrena fulvipennis, M, Back, MD, Anne Arundel County

Andrena fulvipennis "“ A very rare species this male was captured in an old sand pit in Anne Arundel County, Maryland. This species is only found in deep, permanently sandy locations. Picture taken by Brooke Alexander.

Andrena fulvipennis "“ A very rare species this male was captured in an old sand pit in Anne Arundel County, Maryland. This species is only found in deep, permanently sandy locations. Picture taken by Brooke Alexander.

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Andrena gardineri, M, Side, OH, Washington County
Andrena gardineri, M, Side, OH, Washington County
Andrena gardineri, M, Side, OH, Washington County

An often uncommon spring Andrena, I associate with the Appalachians, this is a male with a sweet yellow clypeus. Collected by MaLisa Spring near Marietta, Ohio. Photograph by Brooke Alexander. Canon Mark II 5D, Zerene Stacker, Stackshot Sled, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash in Styrofoam Cooler, F5.0, ISO 100, Shutter Speed 200

An often uncommon spring Andrena, I associate with the Appalachians, this is a male with a sweet yellow clypeus. Collected by MaLisa Spring near Marietta, Ohio. Photograph by Brooke Alexander. Canon Mark II 5D, Zerene Stacker, Stackshot Sled, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash in Styrofoam Cooler, F5.0, ISO 100, Shutter Speed 200

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Andrena gnaphalii, f, left, Santa Barbara Co., CA
Andrena gnaphalii, f, left, Santa Barbara Co., CA
Andrena gnaphalii, f, left, Santa Barbara Co., CA

Not the best lighting, but this is Andrena gnaphalii....a interesting Andrena with a green tinge. From the Channel Islands off the coast of California. Photo by Anders Croft.

Not the best lighting, but this is Andrena gnaphalii....a interesting Andrena with a green tinge. From the Channel Islands off the coast of California. Photo by Anders Croft.

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Andrena gnaphalii, f, side, Santa Barbara, CA
Andrena gnaphalii, f, side, Santa Barbara, CA
Andrena gnaphalii, f, side, Santa Barbara, CA

Another odd ball Andrena from the Channel Islands. This one is A. gnaphalli, collected as part of a larger study of bees in climatically vulnerable National Parks. An apparent Asteraceaea specialist with some glints of green and red instead of the normal black integument.

Another odd ball Andrena from the Channel Islands. This one is A. gnaphalli, collected as part of a larger study of bees in climatically vulnerable National Parks. An apparent Asteraceaea specialist with some glints of green and red instead of the normal black integument.

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Andrena helianthi, face, Hartville, OH
Andrena helianthi, face, Hartville, OH
Andrena helianthi, face, Hartville, OH

Is the scientific name implies (helianthus = sunflowers), Andrena helianthi is a sunflower specialist. Not just the annual sunflower, commonly now raised to produce sunflower seed and sunflower oil, but also the many species of perennials and flowers, which are well deserving of spots in our gardens.

Is the scientific name implies (helianthus = sunflowers), Andrena helianthi is a sunflower specialist. Not just the annual sunflower, commonly now raised to produce sunflower seed and sunflower oil, but also the many species of perennials and flowers, which are well deserving of spots in our gardens.

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Andrena helianthi, right, Hartville, OH
Andrena helianthi, right, Hartville, OH
Andrena helianthi, right, Hartville, OH

Is the scientific name implies (helianthus = sunflowers), Andrena helianthi is a sunflower specialist. Not just the annual sunflower, commonly now raised to produce sunflower seed and sunflower oil, but also the many species of perennials and flowers, which are well deserving of spots in our gardens.

Is the scientific name implies (helianthus = sunflowers), Andrena helianthi is a sunflower specialist. Not just the annual sunflower, commonly now raised to produce sunflower seed and sunflower oil, but also the many species of perennials and flowers, which are well deserving of spots in our gardens.

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Andrena helianthiformis, f, face, Pennington Co., SD
Andrena helianthiformis, f, face, Pennington Co., SD
Andrena helianthiformis, f, face, Pennington Co., SD

Echinacea. This medicinal plant is widely planted and tinkered with by gardeners and breeders. But, it really is a prairie species and when in its habitat, like the Badlands, big bees like to forage on it. Hey, look, here's one in this picture! Andrena helianthiformis. I suppose this means "looks like A. helianthus, but...is not" in Latin.

Echinacea. This medicinal plant is widely planted and tinkered with by gardeners and breeders. But, it really is a prairie species and when in its habitat, like the Badlands, big bees like to forage on it. Hey, look, here's one in this picture! Andrena helianthiformis. I suppose this means "looks like A. helianthus, but...is not" in Latin.

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Andrena helianthiformis, face, Pennington County, SD
Andrena helianthiformis, face, Pennington County, SD
Andrena helianthiformis, face, Pennington County, SD

This large Andrena of the prairies is a specialist bee on Sunflowers as one can see from the name. Captured in Badlands National Park and Photograph Taken by Aaman MengisCanon Mark II 5D, Zerene Stacker, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash, F5.0, ISO 100, Shutter Speed 200

This large Andrena of the prairies is a specialist bee on Sunflowers as one can see from the name. Captured in Badlands National Park and Photograph Taken by Aaman MengisCanon Mark II 5D, Zerene Stacker, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash, F5.0, ISO 100, Shutter Speed 200

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Andrena helianthiformis, side, Pennington County, SD
Andrena helianthiformis, side, Pennington County, SD
Andrena helianthiformis, side, Pennington County, SD

This large Andrena of the prairies is a specialist bee on Sunflowers as one can see from the name. Captured in Badlands National Park and Photograph Taken by Aaman MengisCanon Mark II 5D, Zerene Stacker, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash, F5.0, ISO 100, Shutter Speed 200

This large Andrena of the prairies is a specialist bee on Sunflowers as one can see from the name. Captured in Badlands National Park and Photograph Taken by Aaman MengisCanon Mark II 5D, Zerene Stacker, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash, F5.0, ISO 100, Shutter Speed 200

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