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Explore our planet through photography and imagery, including climate change and water all the way back to the 1800s when the USGS was surveying the country by horse and buggy.

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Dieunomia nevadensis, M, Side, MD, Upper Marlboro
Dieunomia nevadensis, M, Side, MD, Upper Marlboro
Dieunomia nevadensis, M, Side, MD, Upper Marlboro

A very cool find. This is a lovely male Dieunomia nevadensis. It was found in Maryland at one of the Chaney Sand Mines. They kindly scraped a section of the site and sure enough it was colonized by all sorts of cool sand bees. No sand...no sand bees. That sort of thing. This one is particularly noteworthy because the nearest record was from North Carolina.

A very cool find. This is a lovely male Dieunomia nevadensis. It was found in Maryland at one of the Chaney Sand Mines. They kindly scraped a section of the site and sure enough it was colonized by all sorts of cool sand bees. No sand...no sand bees. That sort of thing. This one is particularly noteworthy because the nearest record was from North Carolina.

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Dinagapostemon sicheli, m, mexico, 105 years old
Dinagapostemon sicheli, m, mexico, 105 years old
Dinagapostemon sicheli, m, mexico, 105 years old

150 year old specimen from Mexico that was deposited in the Paris Entomological Collection. Note the crenulated antennae and the fact that the specimen has largely retained its shape and color all these years. Many of these old specimens are still our reference points for taxonomy, distributions, and what things were like in the past.

150 year old specimen from Mexico that was deposited in the Paris Entomological Collection. Note the crenulated antennae and the fact that the specimen has largely retained its shape and color all these years. Many of these old specimens are still our reference points for taxonomy, distributions, and what things were like in the past.

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Diodia teres 2, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman
Diodia teres 2, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman
Diodia teres 2, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman

In full bloom this is more of a lavender/blue flower, but not one that people pay much mind to. Diodia teres, often called Poorjoe, is a plant associated with highly disturbed, often sandy dry sites. Does well, I have collected bees off it, but not enough to make much of a study of it. This specimen was collected and photographed by Helen Lowe Metzman.

In full bloom this is more of a lavender/blue flower, but not one that people pay much mind to. Diodia teres, often called Poorjoe, is a plant associated with highly disturbed, often sandy dry sites. Does well, I have collected bees off it, but not enough to make much of a study of it. This specimen was collected and photographed by Helen Lowe Metzman.

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Diodia teres 3, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman
Diodia teres 3, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman
Diodia teres 3, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman

In full bloom this is more of a lavender/blue flower, but not one that people pay much mind to. Diodia teres, often called Poorjoe, is a plant associated with highly disturbed, often sandy dry sites. Does well, I have collected bees off it, but not enough to make much of a study of it. This specimen was collected and photographed by Helen Lowe Metzman.

In full bloom this is more of a lavender/blue flower, but not one that people pay much mind to. Diodia teres, often called Poorjoe, is a plant associated with highly disturbed, often sandy dry sites. Does well, I have collected bees off it, but not enough to make much of a study of it. This specimen was collected and photographed by Helen Lowe Metzman.

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Diodia teres, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman
Diodia teres, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman
Diodia teres, Rough Buttonweed, Howard County, Md, Helen Lowe Metzman

In full bloom this is more of a lavender/blue flower, but not one that people pay much mind to. Diodia teres, often called Poorjoe, is a plant associated with highly disturbed, often sandy dry sites. Does well, I have collected bees off it, but not enough to make much of a study of it. This specimen was collected and photographed by Helen Lowe Metzman.

In full bloom this is more of a lavender/blue flower, but not one that people pay much mind to. Diodia teres, often called Poorjoe, is a plant associated with highly disturbed, often sandy dry sites. Does well, I have collected bees off it, but not enough to make much of a study of it. This specimen was collected and photographed by Helen Lowe Metzman.

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Dioscorea villosa, pistillate inflorescences in bud, Howard County, MD, HeLoMetz
Dioscorea villosa, pistillate inflorescences in bud, Howard County, MD, HeLoMetz
Dioscorea villosa, pistillate inflorescences in bud, Howard County, MD, HeLoMetz

Wild Yam, Dioscorea villosa, one of the most architecturally balanced and pleasing vines that you can grow. But the tiny flowers and lack of color would seem to indicate that this might be a fly pollinated plant.

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Dioscorea villosa, Wild Yam, pistillate inflorescences in bud 2
Dioscorea villosa, Wild Yam, pistillate inflorescences in bud 2
Dioscorea villosa, Wild Yam, pistillate inflorescences in bud 2

Wild Yam, Dioscorea villosa, one of the most architecturally balanced and pleasing vines that you can grow. But the tiny flowers and lack of color would seem to indicate that this might be a fly pollinated plant.

Wild Yam, Dioscorea villosa, one of the most architecturally balanced and pleasing vines that you can grow. But the tiny flowers and lack of color would seem to indicate that this might be a fly pollinated plant.

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Diospyros virginiana, Persimmon staminate flowe
Diospyros virginiana, Persimmon staminate flowe
Diospyros virginiana, Persimmon staminate flowe

Here is a 2 picture series of persimmon (Diospyros virginiana) flowers. Some trees are male (staminate) and some are female (pistilate). The easy to come by literature of the web searchers says they are pollinated by insects and the wind. I have never collected off them (too high up and am guessing not super attractive to bees).

Here is a 2 picture series of persimmon (Diospyros virginiana) flowers. Some trees are male (staminate) and some are female (pistilate). The easy to come by literature of the web searchers says they are pollinated by insects and the wind. I have never collected off them (too high up and am guessing not super attractive to bees).

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Diospyros virginiana, Persimmon staminate flower
Diospyros virginiana, Persimmon staminate flower
Diospyros virginiana, Persimmon staminate flower

The male flowers of the local persimmon tree (Diospyros virginiana). This does not seem to be much of a bee tree in terms of pollen and nectar use by bees, given that male and female trees are separate, there must be wind or other transport for pollination. Specimen and pictures by Helen Lowe Metzman.

The male flowers of the local persimmon tree (Diospyros virginiana). This does not seem to be much of a bee tree in terms of pollen and nectar use by bees, given that male and female trees are separate, there must be wind or other transport for pollination. Specimen and pictures by Helen Lowe Metzman.

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Diospyros virginiana, Persimmon staminate flower close-up
Diospyros virginiana, Persimmon staminate flower close-up
Diospyros virginiana, Persimmon staminate flower close-up

Here is a 2 picture series of persimmon (Diospyros virginiana) flowers. Some trees are male (staminate) and some are female (pistilate). The easy to come by literature of the web searchers says they are pollinated by insects and the wind. I have never collected off them (too high up and am guessing not super attractive to bees).

Here is a 2 picture series of persimmon (Diospyros virginiana) flowers. Some trees are male (staminate) and some are female (pistilate). The easy to come by literature of the web searchers says they are pollinated by insects and the wind. I have never collected off them (too high up and am guessing not super attractive to bees).

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Diphaglossa gayi, f, face, chile
Diphaglossa gayi, f, face, chile
Diphaglossa gayi, f, face, chile

A large to huge, long-faced bee from Chile. The only member of its genus and strongly associated with the residual and now relictual beech forests of this country.

A large to huge, long-faced bee from Chile. The only member of its genus and strongly associated with the residual and now relictual beech forests of this country.

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Diphaglossa gayi, f, side, chile
Diphaglossa gayi, f, side, chile
Diphaglossa gayi, f, side, chile

A large to huge, long-faced bee from Chile. The only member of its genus and strongly associated with the residual and now relictual beech forests of this country.

A large to huge, long-faced bee from Chile. The only member of its genus and strongly associated with the residual and now relictual beech forests of this country.

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Dolichopodid, Condylostylus near caudatus, Fly green vibrant, side
Dolichopodid, Condylostylus near caudatus, Fly green vibrant, side
Dolichopodid, Condylostylus near caudatus, Fly green vibrant, side

Condylostylus near caudatus, Long-legged fly, Dolichopodid, shot suspended in hand sanitizer, Maryland, Price George's County, Sciapodinae? Det provided by Flickr user Vox Sciurorum.

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Dragonfly, U, genitalia back
Dragonfly, U, genitalia back
Dragonfly, U, genitalia back

Ophiogomphus susbehcha, collected by Richard Orr along the Potomac River, super rare snaketail species

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Dragonfly, U, genitalia side
Dragonfly, U, genitalia side
Dragonfly, U, genitalia side

Ophiogomphus susbehcha, collected by Richard Orr along the Potomac River, super rare snaketail species

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Dragonfly, U, genitalia top
Dragonfly, U, genitalia top
Dragonfly, U, genitalia top

Ophiogomphus susbehcha, collected by Richard Orr along the Potomac River, super rare snaketail species

Ophiogomphus susbehcha, collected by Richard Orr along the Potomac River, super rare snaketail species

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Dufourea monardae, F, Back, WI, Eau Claire County
Dufourea monardae, F, Back, WI, Eau Claire County
Dufourea monardae, F, Back, WI, Eau Claire County

One of about 3 Monarda specialist in Eastern North America. This uncommon bee was collected in Wisconsin, likely by Denny Johnson and photographed by Amber Reese. A northern species and not one we have had any experience collecting or observing. That said, it could occur in Maryland if people spend more time collecting off of Bee Balm.

One of about 3 Monarda specialist in Eastern North America. This uncommon bee was collected in Wisconsin, likely by Denny Johnson and photographed by Amber Reese. A northern species and not one we have had any experience collecting or observing. That said, it could occur in Maryland if people spend more time collecting off of Bee Balm.

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Dufourea monardae, F, Face, WI, Eau Claire County
Dufourea monardae, F, Face, WI, Eau Claire County
Dufourea monardae, F, Face, WI, Eau Claire County

A headshot of the uncommon specialist bee, Dufourea monardae. As one might suppose, based on the species part of its name this is a monarda specialist.

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