Images

Osmia felti. A big Mason Bee with black pollen carrying hairs. In the world of all animals are few are very very common and many are very uncommon and some are rare. Here is a rare one that pops up now and again in the North East / North Central sections of North America, but only a handful of times.

Osmia georgica....Shimmering in blue, like most Osmia, small one was found in Maryland and photographed by Sue Boo

Osmia georgica. Nests in holes. Hangs out on mid summer composites. Has orange pollen carrying hairs. Has boss knobs on the upper side of the mandibles (why?). This specimen found on Dave Wagner's transmission line study in New England by Michael Veit. All good.

Osmia georgica. A relatively regular, but not overly abundant hole nesting Osmia. While small it is notable for have what looks like growths on its mandibles, making them quite distinctive. These elevations are probably used to help carry mud to the nests while forming partitions between their cells. Photography by Ashleigh Jacobs.

Osmia georgica. A relatively regular, but not overly abundant hole nesting Osmia. While small it is notable for have what looks like growths on its mandibles, making them quite distinctive. These elevations are probably used to help carry mud to the nests while forming partitions between their cells. Photography by Ashleigh Jacobs.

An eastern Osmia....this is Osmia georgica. Noted for the large projecting horns on its mandibles that likely help the female carry mud to her nest to make partitions. A hole nester that will take up residence in holes you drill in your front porch posts like I do. Photos by Ashleigh Jacobs.

The oft times difficult to id male of the not so hard to id female Osmia georgica. Sometimes bees are inconvenient to work with. Picture by Amanda Robinson. 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.

Range Jumper. This range jumper jumped from Illinois to Virginia. There are no records in between. How odd....this is a rare bee in its limited range in the Midwest and to find it all the way in the Mountains of Virginia seems near fantastical, but there it is and more than one specimen too.

This bee is part of a taxonomic mystery spanning the continent. It turns out that the male of this species is very likely named as O. trevoris, by a long ago taxonomist., All specimens were thought to be limited to the West, but....there were these strange Osmia around the Great Lakes that were sometimes called (incorrectly it now seems) O.

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.

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.

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.

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.

Osmia simillima, female, Acadia National Park, Maine,

Pink Pollen Bee. Meet another lover of thistles. The large and late season Osmia texana. The pink pollen is the pink pollen of thistles (I think one of the non-native ones so maybe other thistles don't have pink pollen?).

A thistle hugging giant of an Osmia..., who can't but love thistles and the several bee species that depend on them. Here is a specialist that depends on pollen from our native thistle plants to provision the cells of its young. Too often our native thistles also are taken out when people spray for introduced bull and Canada Thistles.