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USGS Bee Lab at the Eastern Ecological Science Center images.

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Andrena atlantica, f, back, Prince George's Co., MD
Andrena atlantica, f, back, Prince George's Co., MD
Andrena atlantica, f, back, Prince George's Co., MD

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.

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Andrena atlantica, f, left side, Prince George's Co., MD
Andrena atlantica, f, left side, Prince George's Co., MD
Andrena atlantica, f, left side, Prince George's Co., MD

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.

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Andrena barbara, f, face ,Prince Georges Co., MD
Andrena barbara, f, face ,Prince Georges Co., MD
Andrena barbara, f, face ,Prince Georges Co., MD

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.

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2014 Lights Out DC Birds
2014 Lights Out DC Birds
2014 Lights Out DC Birds

Here lie the birds killed while striking a set of buildings surveyed during the migration season in 2013 in Washington D.C. The birds were picked up by the group Lights Out Washington D.C.

Here lie the birds killed while striking a set of buildings surveyed during the migration season in 2013 in Washington D.C. The birds were picked up by the group Lights Out Washington D.C.

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Acer rubrum, staminate flr. 2, Howard County, Md,
Acer rubrum, staminate flr. 2, Howard County, Md,
Acer rubrum, staminate flr. 2, Howard County, Md,

The red maple, Acer rubrum, often one of the most dominant trees in deciduous woods in the East. It blooms very early in the spring and provides pollen and nectar to the set of bees, and flower flies, that come out early.

The red maple, Acer rubrum, often one of the most dominant trees in deciduous woods in the East. It blooms very early in the spring and provides pollen and nectar to the set of bees, and flower flies, that come out early.

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Acmaeodera virgo, u, back, Kruger National Park, South Africa
Acmaeodera virgo, u, back, Kruger National Park, South Africa
Acmaeodera virgo, u, back, Kruger National Park, South Africa

Another tree flower loving beetle from South Africa this one a buprestid, Acmaeodera virgo. Collected widely in bowl traps and in trees in Kruger National Park. Photo by Kelly Graninger.

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Aesculus glabra, Ohio Buckeye flr., Howard County, Md,
Aesculus glabra, Ohio Buckeye flr., Howard County, Md,
Aesculus glabra, Ohio Buckeye flr., Howard County, Md,

Ohio Buckeye, Aesculus glabra. Buckeye's...one of the nice little acknowledged providers of pollen and nectar in forested environments. Specimen and photos by Helen Lowe Metzman.

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African wasp, f, right, Kruger National Park, South Africa Mpumalanga
African wasp, f, right, Kruger National Park, South Africa Mpumalanga
African wasp, f, right, Kruger National Park, South Africa Mpumalanga

Lovely wasp from Kruger National Park. Again, not being a wasp person, I don't know the species. The group may be the sand wasp (Bembicini) . Photos by Anders Croft.

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Agapostemon coloradinus, F, back, Shannon Co., S. Dakota
Agapostemon coloradinus, F, back, Shannon Co., S. Dakota
Agapostemon coloradinus, F, back, Shannon Co., S. Dakota

A large bright green with blue overtones Agapostemon from Badlands National Park. One of several species present there and very similar to A. virescens and a bit tricky to tell apart. Photo by Wayne Boo with help from Ben Smith on upping the Photoshopping techniques.

A large bright green with blue overtones Agapostemon from Badlands National Park. One of several species present there and very similar to A. virescens and a bit tricky to tell apart. Photo by Wayne Boo with help from Ben Smith on upping the Photoshopping techniques.

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Andrena cressonii, F, Back, MD
Andrena cressonii, F, Back, MD
Andrena cressonii, F, Back, MD

Andrena cressonii - Common, shows up almost everywhere in the spring. Secret identification tip of the day: There is a raised line slanting across the pronotal collar that is usually visible from one side of there other (depending on how the head is cocked). As you go west the legs tend to get very orange...is it a different species?

Andrena cressonii - Common, shows up almost everywhere in the spring. Secret identification tip of the day: There is a raised line slanting across the pronotal collar that is usually visible from one side of there other (depending on how the head is cocked). As you go west the legs tend to get very orange...is it a different species?

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Andrena distans, F, Back2, VA, Gales County
Andrena distans, F, Back2, VA, Gales County
Andrena distans, F, Back2, VA, Gales County

A bee that feeds its babies a restricted diet. In this case that diet is that of Geranium pollen. While I didn't check this specimen from Virginia those lovely pollen grains on its hind legs are very likely Geranium.

A bee that feeds its babies a restricted diet. In this case that diet is that of Geranium pollen. While I didn't check this specimen from Virginia those lovely pollen grains on its hind legs are very likely Geranium.

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Andrena fenningeri, M, Side, TN, Sevier County, Amber
Andrena fenningeri, M, Side, TN, Sevier County, Amber
Andrena fenningeri, M, Side, TN, Sevier County, Amber

From the Great Smoky Mountains of Tennessee comes Andrena fenningeri, one of the very early spring bees, often associated with red maple bloom. In this case a male. Amber Reese took the picture and Elizabeth Garcia did the shopping.

From the Great Smoky Mountains of Tennessee comes Andrena fenningeri, one of the very early spring bees, often associated with red maple bloom. In this case a male. Amber Reese took the picture and Elizabeth Garcia did the shopping.

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Andrena forbesii, f, side, Maryland
Andrena forbesii, f, side, Maryland
Andrena forbesii, f, side, Maryland

Another member of the difficult to identify Trachandrena subgenus of Andrena. I think that I have the females sorted out (more or less) but the males...oi! This specimen from Maryland. Picture by Amanda Robinson.

Another member of the difficult to identify Trachandrena subgenus of Andrena. I think that I have the females sorted out (more or less) but the males...oi! This specimen from Maryland. Picture by Amanda Robinson.

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Andrena fulvipennis, F, Back, MD
Andrena fulvipennis, F, Back, MD
Andrena fulvipennis, F, Back, MD

An odd, dark Andrena bee of deep sandy areas that comes out in the middle of summer

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Andrena nubecula, F, back, North Carolina, Buncombe County
Andrena nubecula, F, back, North Carolina, Buncombe County
Andrena nubecula, F, back, North Carolina, Buncombe County

One of the relatively few fall Andrena bees (most occur on spring wildflowers). This dark species is associated with Goldenrods and Asters...but then again, that is the main nectar and pollen source of the Fall. They also have a tendency to show up in sandy areas and, indeed, this specimen is from the Carolina Sandhills collected by Heather Campbell.

One of the relatively few fall Andrena bees (most occur on spring wildflowers). This dark species is associated with Goldenrods and Asters...but then again, that is the main nectar and pollen source of the Fall. They also have a tendency to show up in sandy areas and, indeed, this specimen is from the Carolina Sandhills collected by Heather Campbell.

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Andrena nubecula, F, Face ammonia, MD, Anne Arundel County
Andrena nubecula, F, Face ammonia, MD, Anne Arundel County
Andrena nubecula, F, Face ammonia, MD, Anne Arundel County

From the sand pits of Anne Arundel County Maryland comes this small Andrena, Andrena nubecula. Photographed by Brooke Alexander.

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Andrena oman, f, oman, back
Andrena oman, f, oman, back
Andrena oman, f, oman, back

Andrena species, Black-tipped Andrena, specimen collected by Jason Gibbs in OmanEvolution has blessed the genus Andrena with over 1500 different species, making it the second richest of all bee genera (Hairy-tongue Bees, Lasioglossum, are first).

Andrena species, Black-tipped Andrena, specimen collected by Jason Gibbs in OmanEvolution has blessed the genus Andrena with over 1500 different species, making it the second richest of all bee genera (Hairy-tongue Bees, Lasioglossum, are first).

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Andrena perplexa, m, talbot co, face
Andrena perplexa, m, talbot co, face
Andrena perplexa, m, talbot co, face

Andrena perplexa - This is a male from Talbot County, Maryland, long thin mandibles, wide cheeks and a big for an Andrena. Common in woodland areas, like so many of the Andrena. Photography Information: 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.

Andrena perplexa - This is a male from Talbot County, Maryland, long thin mandibles, wide cheeks and a big for an Andrena. Common in woodland areas, like so many of the Andrena. Photography Information: 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 pruni, m, back, Frederick Co., MD
Andrena pruni, m, back, Frederick Co., MD
Andrena pruni, m, back, Frederick Co., MD

Male Andrena bees can be difficult to identify. Particularly complicated and confusing are the subgenus Melandrena. Here is a member of that subgenus....A. pruni. However!

Male Andrena bees can be difficult to identify. Particularly complicated and confusing are the subgenus Melandrena. Here is a member of that subgenus....A. pruni. However!

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Andrena prunorum, m, back, Pennington Co., SD
Andrena prunorum, m, back, Pennington Co., SD
Andrena prunorum, m, back, Pennington Co., SD

A common spring western Andrena. More colorful than the average dark chocolate Andrena (fuscous is what the old timers would call it). Quite reddish in its integument in spots and a nice yellow clypeus as in this male. Collected in the fabulous Badlands National Park in South Dakota. Photo by Kelly Graninger.

A common spring western Andrena. More colorful than the average dark chocolate Andrena (fuscous is what the old timers would call it). Quite reddish in its integument in spots and a nice yellow clypeus as in this male. Collected in the fabulous Badlands National Park in South Dakota. Photo by Kelly Graninger.

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