Images

There are a group of bees in the genus Andrena that form a fairly distinct subgenus called Tracandrena. They are notorious for being difficult to separate out and, in particular, the males all look pretty much the same. I have created a little Excel spreadsheet that help separate out the females, if anyone is interested.

Middlesex County, Massachusetts

Andrena fulvipennis "“ A very rare species this male was captured in an old sand pit in Anne Arundel County, Maryland. This species is only found in deep, permanently sandy locations. Picture taken by Brooke Alexander.

An often uncommon spring Andrena, I associate with the Appalachians, this is a male with a sweet yellow clypeus. Collected by MaLisa Spring near Marietta, Ohio. Photograph by Brooke Alexander. 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

Not the best lighting, but this is Andrena gnaphalii....a interesting Andrena with a green tinge. From the Channel Islands off the coast of California. Photo by Anders Croft.

Another odd ball Andrena from the Channel Islands. This one is A. gnaphalli, collected as part of a larger study of bees in climatically vulnerable National Parks. An apparent Asteraceaea specialist with some glints of green and red instead of the normal black integument.

Is the scientific name implies (helianthus = sunflowers), Andrena helianthi is a sunflower specialist. Not just the annual sunflower, commonly now raised to produce sunflower seed and sunflower oil, but also the many species of perennials and flowers, which are well deserving of spots in our gardens.

Is the scientific name implies (helianthus = sunflowers), Andrena helianthi is a sunflower specialist. Not just the annual sunflower, commonly now raised to produce sunflower seed and sunflower oil, but also the many species of perennials and flowers, which are well deserving of spots in our gardens.

Connecticut, Tracy Zarillo Collector

Echinacea. This medicinal plant is widely planted and tinkered with by gardeners and breeders. But, it really is a prairie species and when in its habitat, like the Badlands, big bees like to forage on it. Hey, look, here's one in this picture! Andrena helianthiformis. I suppose this means "looks like A. helianthus, but...is not" in Latin.

This large Andrena of the prairies is a specialist bee on Sunflowers as one can see from the name. Captured in Badlands National Park and Photograph Taken by Aaman MengisCanon Mark II 5D, Zerene Stacker, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash, F5.0, ISO 100, Shutter Speed 200

This large Andrena of the prairies is a specialist bee on Sunflowers as one can see from the name. Captured in Badlands National Park and Photograph Taken by Aaman MengisCanon Mark II 5D, Zerene Stacker, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash, F5.0, ISO 100, Shutter Speed 200

Maryland, Anne Arundel County

Collected by Ms. West Virginia bees, Jane Whitaker, this spring bee species can be seen in the Appalachians north. Photoshopping by Thistle Droege, photography by Dejen Mengis.

A bee (Andrena morrisonella) that may or may not be the same species as A. imitatrix.

A bee (Andrena morrisonella) that may or may not be the same species as A. imitatrix. We hope to find out over the next couple of years using DNA barcoding with the Sarah Kocher lab. Pictures by Hannah Sutton.

A bee (Andrena morrisonella) that may or may not be the same species as A. imitatrix. We hope to find out over the next couple of years using DNA barcoding with the Sarah Kocher lab. Pictures by Hannah Sutton.

From Anne Arundel County, in Maryland, this is one of but a few Andrena that come out in the Fall. Brooke Alexander was the photographer.Canon Mark II 5D, Zerene Stacker, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash, F5.0, ISO 100, Shutter Speed 200, link to a .pdf of our set up is located in our profile

Most people don't realize how important willow trees are to our native bees in North America. They are a major pollen and nectar source early in the spring and they have more specialists than almost any other plant on the continent. Here is one of those specialists. This is Andrena nida. This bee feed it's young only the pollen from Willow.

Various Andrena, adding to the catalog....most with bad hair. Sigh.

Rare Bee Alert. Andrena uvulariae was described many years ago from specimens collected where I work in Beltsville, MD and then...it largely went off the radar screen as a legit species and all things that looked like this species were simply called A. ziziaformis.