Images

Macropis europaea, European Oil Bee, specimen collected by Heinrich Friese in AustriaSometimes an entire group of bees develops a relationship with one group of plants. The 16 little species of Macropis Oil Bees are such a case. They only seek pollen and oil from plants within the genus Lysimachia.

Macropis were once upon a time a much more common group, this is Macropis nuda...all are loosestrife specialists. So, it could be as simple as Loostrife plants are much less common now than they were or it could be something else. Photograph by Dejen Mengis.

Another Macropis from transmission lines from NH and MA. This species (M. nuda) is also a Lysimachia specialist and the female's bright white pollen carrying hairs and likely the hairs under the abdomen soak up oils which are used by the female to add to pollen to create the food for their young. Collected by Michael Veit and part of a study run by David Wagner.

Late breaking new...this was identified by Don Harvey as Macrotera portalis (formerly in Perdita...now its own genus)Bee with Big Head. This is a Perdita...a male collected in Cochise County Arizona by Tim McMahon. Why such a big head. Unclear because sometimes in the same species have small heads.

An obscure bee of the desert, Martinapis luteicornis only is active early in the morning just as the sky begins to lighten. At least one paper indicates that they are specialists on Psorothamnus scoparius or the Broom Dalea.

From Mount Washington in New Hampshire. A new species for New England this species has a boreal distribution and probably is a hold out from colder days, eking out a living in the White Mountains until global climate change turns it into a jungle.

A rather lovely Lasioglossum from Bryce Canyon National Park (L. sisymbrii) als black and white stripes. Common in the West...leaking a bit into the plains, but not much.

Lasioglossum sopinci lives in sand deserts in Eastern North America.

Lasioglossum sopinci, the undescribed male of this sand specialist, found along some lovely powerline...

Another one of those metallic Lasioglossums in the Dialictus group....so similar until you look at them under the microscope ...where they continue to look so similar. It is a world of nuance to us, but somehow many Lasioglossum species evolve, do different things, partition the sexual universe and become species.

Lasioglossum tamiamense is a small, very southern, bee of the sweat bee the variety. It's one of those subtleties of identification that taxonomists spend a lot of time on, but doesn't involve a whole lot of other people.

From one of the coastal National Parks in St. John's County in Florida comes a lovely red-legged Lasioglossum tarponense. I think of this species as a sand specialist...living in the Florida scrubby sand coastal pine matrix that forms an important part of the natural matrix of the region behind the sand dunes.

Joan Milam collected this particular Lasioglossum. Darn if it doesn't look like all the rest of them. Photography 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.

Grand Tetons have the grand Lasioglossum lilliputense. Very cute. Photography 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.

Lasioglossum lineatulum is defined in my mind by having relatively few pits on its scutum, a shinyish abdomen, and long straitions on the propodeal triangle. Otherwise it looks similar to the 100 plus other species in the group. This one was captured on Sleeping Bear Dunes National Lakeshore in Michigan.

From Cumberland Island National Seashore another little Lasioglossum from the glossy metallic Dialictus group. As its name implies...it has an unusually long head.

Lasioglossum marinense, from the San Juan Islands National Historic Park, found in the eastern parts of the Pacific Northwest. Photograph by Dejen Mengis.

Lasioglossum marinum, Female, Florida, National Park Service, Fort Matanzas National Monument

Cuba, GTMO Guantanamo Bay Naval Base

From Organ Pipe National Monument comes the small and very common western Lasioglossum microlepoides. Just like the seemingly endless supply of these small Halictid bees, it is slightly metallic and and has a strongly bent basal vein. One could spent a couple lives just figuring out the different species. Photography by Brooke Alexander.

Lasioglossum nevadense from San Juan Islands National Monument in the farrrr northwest corner of the United States mainland.