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Bright and shiny purple green blue unlike the relatively drab eastern species this is Osmia kincadii...found in the upper elevations of Yosemite National Park as part of a burn study. Photo by Anders Croft.

Ah, another beautiful green Osmia bee from the western U.S. O. kincaidii is the name, makes nest in holes in wood and lines them with leaf pulp. Praise the color selections that Nature provides. Collected in Yosemite National Park by Claire Kremen's Bee Troopers. Photograph by Anders Croft.

Ah, another beautiful green Osmia bee from the western U.S. O. kincaidii is the name, makes nest in holes in wood and lines them with leaf pulp. Praise the color selections that Nature provides. Collected in Yosemite National Park by Claire Kremen's Bee Troopers. Photograph by Anders Croft.

Osmia laeta. There are quite a number of Osmia out there. Despite their beauty, they can be irritatingly difficult to split apart. People who can help with identifications are definitely the bottleneck. This beauty comes from Yosemite National Park...part of the many studies of the Claire Kremen lab. Photo by Samia Shell and Lela Versteegen.

The classic Blue Orchard Bee, that many gardeners make nests for by drilling blocks of wood or buying little houses or straws. All well and good except for the fact that 2 recent Asian Osmia species are now starting to dominate populations in both urban and rural areas. O. taurus and O. cornifrons.

Here you can see the sculptured wonder of an Osmia's Mandibles...designed to cut leaves to line their nests. While indistinct you can see the notch out of the rim of the clypeus that defines this species. The classic Blue Orchard Bee, that many gardeners make nests for by drilling blocks of wood or buying little houses or straws.

The classic Blue Orchard Bee, that many gardeners make nests for by drilling blocks of wood or buying little houses or straws. All well and good except for the fact that 2 recent Asian Osmia species are now starting to dominate populations in both urban and rural areas. O. taurus and O. cornifrons.

Ah, what a lovely ethereal composition. This is the male of the Blue Orchard Bee, studied for its use in orchards as a pollinator. Collected and photographed by Laura Campbell in the Virginia Beach area.

Forgot to upload this back shot of the midnight blue Osmia montana. Collected in the mountains of Yosemite National Park as part of a burn recovery project by Claire Kremen's group. Photos by Anders Croft.

Some Osmia are not shiny metallic green or blue, but black to midnight blue like our buddy O. montana here. Collected in the mountains of Yosemite National Park as part of a burn recovery project by Claire Kremen's group. Photos by Anders Croft.

Some Osmia are not shiny metallic green or blue, but black to midnight blue like our buddy O. montana here. Collected in the mountains of Yosemite National Park as part of a burn recovery project by Claire Kremen's group. Photos by Anders Croft.

Taxonomy and Discovery. One would expect based on what we know about things like plants and birds, that we would largely have figured out what species of bees exist in the Eastern United States...Not so, still much to do for the students of bees.

Taxonomy and Discovery. One would expect based on what we know about things like plants and birds, that we would largely have figured out what species of bees exist in the Eastern United States...Not so, still much to do for the students of bees.

Who doesn't love an Osmia...particularly an Osmia paradisica from the under visited Great Basin National Park. Picture taken by Brooke Alexander. 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.

Who doesn't love an Osmia...particularly an Osmia paradisica from the under visited Great Basin National Park. Picture taken by Brooke Alexander. 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.

Who doesn't love an Osmia...particularly an Osmia paradisica from the under visited Great Basin National Park. Picture taken by Brooke Alexander. 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.

This is a wee little male bee in the genus Osmia (O. pumila). It is perhaps the smallest Osmia in the East and perfect for a full facial shot with the 10X lens set up. Still need to work on lighting issues, mabye more diffusers around specimen, but things are moving in the right direction with reasonably good definition of hairs and eye omatidia.

We have already added the male of this species. As the name implies this species is rufous in its hairs. Check the hairs filled with pollen underneath the abdomen. Collected by Jelle Devalez in the Aegean Islands of Greece. Photography by Brooke Alexander.

We have already added the male of this species. As the name implies this species is rufous in its hairs. Check the hairs filled with pollen underneath the abdomen. Collected by Jelle Devalez in the Aegean Islands of Greece. Photography by Brooke Alexander.

We have already added the male of this species. As the name implies this species is rufous in its hairs. Check the hairs filled with pollen underneath the abdomen. Collected by Jelle Devalez in the Aegean Islands of Greece. Photography by Brooke Alexander.

Osmia rufohirta - An Osmia from the Grecian Isles that nests in snail shells. Not this specimen as it is a male and does essentially nothing but mate. Lots of reddish hairs on this species as the name implies. Specimen collected by Jelle Devalez.